Build Guides                                                    

When it comes to choosing a new gaming monitor, the debate between 24-inch vs 27-inch for gaming is one of the most common dilemmas for both new PC builders and upgraders in 2026. 

For most players, the answer depends on your playstyle, desk size, GPU performance, and budget: 24-inch monitors are ideal for fast-paced competitive play thanks to their lower input lag and fit for small-to-mid desks, while 27-inch models deliver a more immersive experience for casual gaming, content creation, and multimedia. 

As 1440p has become the mainstream resolution for modern gaming, the popularity of 27-inch monitors has exploded, but 24-inch still holds its own as the go-to choice for competitive players.

Desk Size and Viewing Distance: The Most Overlooked Factor

The first and most important factor to consider when choosing between 24-inch and 27-inch monitors is how much space you have, and how far you sit from your screen. There’s a simple rule of thumb for comfortable viewing: your ideal viewing distance (from your eyes to the screen) should be 1 to 1.5 times the diagonal measurement of your monitor. This avoids eye strain from having to focus on a screen that’s too big or too close, and eliminates the need to move your head to see all corners of the screen during fast-paced gameplay.

This works out to a recommended viewing distance of 20 to 36 inches (50 to 90 cm). This fits perfectly on even small-to-mid-sized desks (anything 48 to 60 inches wide), which is the most common desk size for home PC setups. Even if you sit as close as 50cm (common for competitive FPS players) a 24-inch monitor won’t feel overwhelming, and you can see the entire screen without shifting your gaze.

the recommended viewing distance jumps to 27 to 40.5 inches (68 to 103 cm). That means you need a desk at least 60 inches wide to fit a 27-inch monitor comfortably, plus any other peripherals like your keyboard, mouse, and speakers. If you have a smaller desk and push a 27-inch monitor closer than 25 inches to your face, it will feel too big, you’ll get eye strain after long gaming sessions, and you’ll have to move your neck to spot enemies in the corners of your screen in competitive games.

For context, most pro esports players sit between 50 to 60cm away from their monitors, which is why nearly all of them stick to 24-inch models. If you sit further away (80cm or more, common for console players or people who game from a couch across the room), 27-inch feels just right and doesn’t cause strain.

Resolution and Pixel Density: Why 1080p Works on 24-Inch But Not 27-Inch

Pixel density (measured in pixels per inch, or PPI) is how sharp your screen looks at a given viewing distance. The combination of screen size and resolution directly determines your PPI, and this is where a lot of beginner builders make mistakes.

~92 PPI. This is perfectly sharp for gaming at normal viewing distances. You won’t be able to see individual pixels from 50+ cm away, and it looks crisp for both games and text.

~81 PPI. This is too low for most use cases. If you sit closer than 70cm, you’ll be able to see individual pixels, text will look blurry and jagged, and fine details in games will be muddy. There’s almost no reason to buy a 1080p 27-inch monitor in 2026.

~109 PPI. This is widely considered the sweet spot for modern gaming. It’s noticeably sharper than 1080p 24-inch, it doesn’t put as much strain on your GPU as 4K, and it looks incredible for both games and content creation.

~122 PPI. This is sharper than 1440p 27-inch, but 1440p 24-inch monitors are rare, more expensive, and the difference in sharpness isn’t noticeable to most people at normal viewing distances. Most competitive players don’t see the value in paying extra for 1440p 24-inch when 1080p gives them higher FPS and lower input lag.

~163 PPI. This is extremely sharp, but it’s also much more expensive, requires a high-end GPU to hit high FPS, and the difference between 1440p and 4K on 27-inch is only noticeable if you sit very close.

In short: 24-inch works great with 1080p, while 27-inch needs at least 1440p to look good. If you can’t afford a 1440p 27-inch monitor, you’re better off going with a 1080p 24-inch.

Performance: Refresh Rate, Input Lag, and GPU Impact

For gaming, performance is everything, and monitor size has a direct impact on input lag, maximum refresh rate, and how hard your GPU has to work.

Historically, 24-inch monitors have always had an edge for competitive play because they’re cheaper to produce at high refresh rates, and they consistently deliver lower input lag than larger 27-inch models. Even in 2026, the average 24-inch 1080p 360Hz competitive monitor has an input lag of 1-3ms, while the average 27-inch 1440p 240Hz model has an input lag of 3-5ms. That 2-4ms difference is barely noticeable for casual players, but it can make a difference for pro players or anyone who competes at a high level in fast FPS games.

Another big factor is GPU performance. A 1080p 24-inch monitor requires much less GPU power to drive high frame rates than a 1440p 27-inch monitor. If you have a budget or mid-range GPU like an RTX 5060 or RX 9060 XT, you’ll easily hit 144+ FPS on the highest settings in most new games at 1080p, but you may struggle to hit 100+ FPS at 1440p on max settings in newer AAA titles like 

. If you want high frame rates but have a mid-range GPU, 24-inch 1080p is a more practical choice.

That said, the performance gap has narrowed a lot in recent years. Modern mid-range and high-end GPUs handle 1440p 27-inch gaming easily, and you can now find 27-inch 1440p 240Hz monitors with input lag under 2ms that rival 24-inch models. The performance difference is only meaningful for competitive players now.

To make the choice easier, let’s break down which size works best for the most common use cases:

If you primarily play competitive first-person shooters like 

, and you prioritize maximum FPS and minimal input lag over immersive visuals, 24-inch is almost always the better choice. 

The smaller size lets you see the entire screen without moving your head or eyes, which helps you spot enemies faster in the corners of the map. This is why 90% of pro esports players still use 24-inch monitors in 2026, even though 27-inch is more popular with mainstream players.

Casual Single-Player and Open-World Gaming

If you mostly play single-player open-world games, story-driven titles, or casual online games, and you value immersion and visual quality over the last 1ms of input lag, 27-inch 1440p is the clear best choice. 

The larger screen makes game worlds feel more immersive, draws you into the action more, and the 1440p resolution delivers much sharper, more detailed visuals than 1080p 24-inch. For games like 

, the larger screen makes the whole experience much more enjoyable.

Content Creation, Streaming, and Multitasking

If you use your PC for more than just gaming – like work, video editing, streaming, school, or multitasking with multiple windows open – 27-inch is definitely the better choice. 

The extra 3 inches of diagonal screen size translates to almost 30% more screen real estate than a 24-inch monitor, which makes it much easier to have your game, stream chat, editing tools, and browser tabs open at the same time without everything feeling cramped. Even for just working from home, the extra space makes a huge difference in productivity.

At the end of the day, the choice between 24-inch and 27-inch for gaming comes down to your personal needs and setup. Pick a 24-inch monitor if you primarily play fast-paced competitive games, have a small-to-mid desk under 60 inches wide, are building a budget PC, or sit closer than 70cm to your screen. 

Pick a 27-inch monitor if you mostly play casual or single-player games, need extra screen space for work or multitasking, have a desk 60 inches or wider, sit 70cm or further from your screen, and have a mid-range or better GPU that can handle 1440p gaming.





When it comes to choosing a new gaming monitor, the debate between 24-inch vs 27-inch for gaming is one of the most common dilemmas for both new PC builders and upgraders in 2026. 

For most players, the answer depends on your playstyle, desk size, GPU performance, and budget: 24-inch monitors are ideal for fast-paced competitive play thanks to their lower input lag and fit for small-to-mid desks, while 27-inch models deliver a more immersive experience for casual gaming, content creation, and multimedia. 

As 1440p has become the mainstream resolution for modern gaming, the popularity of 27-inch monitors has exploded, but 24-inch still holds its own as the go-to choice for competitive players.



Desk Size and Viewing Distance: The Most Overlooked Factor

The first and most important factor to consider when choosing between 24-inch and 27-inch monitors is how much space you have, and how far you sit from your screen. There’s a simple rule of thumb for comfortable viewing: your ideal viewing distance (from your eyes to the screen) should be 1 to 1.5 times the diagonal measurement of your monitor. This avoids eye strain from having to focus on a screen that’s too big or too close, and eliminates the need to move your head to see all corners of the screen during fast-paced gameplay.







For a 24-inch monitor

This works out to a recommended viewing distance of 20 to 36 inches (50 to 90 cm). This fits perfectly on even small-to-mid-sized desks (anything 48 to 60 inches wide), which is the most common desk size for home PC setups. Even if you sit as close as 50cm (common for competitive FPS players) a 24-inch monitor won’t feel overwhelming, and you can see the entire screen without shifting your gaze.



For a 27-inch monitor

the recommended viewing distance jumps to 27 to 40.5 inches (68 to 103 cm). That means you need a desk at least 60 inches wide to fit a 27-inch monitor comfortably, plus any other peripherals like your keyboard, mouse, and speakers. If you have a smaller desk and push a 27-inch monitor closer than 25 inches to your face, it will feel too big, you’ll get eye strain after long gaming sessions, and you’ll have to move your neck to spot enemies in the corners of your screen in competitive games.



For context, most pro esports players sit between 50 to 60cm away from their monitors, which is why nearly all of them stick to 24-inch models. If you sit further away (80cm or more, common for console players or people who game from a couch across the room), 27-inch feels just right and doesn’t cause strain.



Resolution and Pixel Density: Why 1080p Works on 24-Inch But Not 27-Inch

Pixel density (measured in pixels per inch, or PPI) is how sharp your screen looks at a given viewing distance. The combination of screen size and resolution directly determines your PPI, and this is where a lot of beginner builders make mistakes.



1080p (1920x1080) 24-inch: 

~92 PPI. This is perfectly sharp for gaming at normal viewing distances. You won’t be able to see individual pixels from 50+ cm away, and it looks crisp for both games and text.



1080p (1920x1080) 27-inch: 

~81 PPI. This is too low for most use cases. If you sit closer than 70cm, you’ll be able to see individual pixels, text will look blurry and jagged, and fine details in games will be muddy. There’s almost no reason to buy a 1080p 27-inch monitor in 2026.



1440p (2560x1440) 27-inch: 

~109 PPI. This is widely considered the sweet spot for modern gaming. It’s noticeably sharper than 1080p 24-inch, it doesn’t put as much strain on your GPU as 4K, and it looks incredible for both games and content creation.



1440p 24-inch: 

~122 PPI. This is sharper than 1440p 27-inch, but 1440p 24-inch monitors are rare, more expensive, and the difference in sharpness isn’t noticeable to most people at normal viewing distances. Most competitive players don’t see the value in paying extra for 1440p 24-inch when 1080p gives them higher FPS and lower input lag.



4K (3840x2160) 27-inch: 

~163 PPI. This is extremely sharp, but it’s also much more expensive, requires a high-end GPU to hit high FPS, and the difference between 1440p and 4K on 27-inch is only noticeable if you sit very close.

In short: 24-inch works great with 1080p, while 27-inch needs at least 1440p to look good. If you can’t afford a 1440p 27-inch monitor, you’re better off going with a 1080p 24-inch.







Performance: Refresh Rate, Input Lag, and GPU Impact

For gaming, performance is everything, and monitor size has a direct impact on input lag, maximum refresh rate, and how hard your GPU has to work.



Historically, 24-inch monitors have always had an edge for competitive play because they’re cheaper to produce at high refresh rates, and they consistently deliver lower input lag than larger 27-inch models. Even in 2026, the average 24-inch 1080p 360Hz competitive monitor has an input lag of 1-3ms, while the average 27-inch 1440p 240Hz model has an input lag of 3-5ms. That 2-4ms difference is barely noticeable for casual players, but it can make a difference for pro players or anyone who competes at a high level in fast FPS games.



Another big factor is GPU performance. A 1080p 24-inch monitor requires much less GPU power to drive high frame rates than a 1440p 27-inch monitor. If you have a budget or mid-range GPU like an RTX 5060 or RX 9060 XT, you’ll easily hit 144+ FPS on the highest settings in most new games at 1080p, but you may struggle to hit 100+ FPS at 1440p on max settings in newer AAA titles like Black Myth: Wukong or Monster Hunter Wilds. If you want high frame rates but have a mid-range GPU, 24-inch 1080p is a more practical choice.



That said, the performance gap has narrowed a lot in recent years. Modern mid-range and high-end GPUs handle 1440p 27-inch gaming easily, and you can now find 27-inch 1440p 240Hz monitors with input lag under 2ms that rival 24-inch models. The performance difference is only meaningful for competitive players now.







Use Case: Who Is Each Size Best For?

To make the choice easier, let’s break down which size works best for the most common use cases:



Competitive Fast-Paced Gaming

If you primarily play competitive first-person shooters like CS2, Valorant, Call of Duty, or Apex Legends, and you prioritize maximum FPS and minimal input lag over immersive visuals, 24-inch is almost always the better choice. 

The smaller size lets you see the entire screen without moving your head or eyes, which helps you spot enemies faster in the corners of the map. This is why 90% of pro esports players still use 24-inch monitors in 2026, even though 27-inch is more popular with mainstream players.



Casual Single-Player and Open-World Gaming

If you mostly play single-player open-world games, story-driven titles, or casual online games, and you value immersion and visual quality over the last 1ms of input lag, 27-inch 1440p is the clear best choice. 

The larger screen makes game worlds feel more immersive, draws you into the action more, and the 1440p resolution delivers much sharper, more detailed visuals than 1080p 24-inch. For games like Black Myth: Wukong or The Elder Scrolls V: Skyrim, the larger screen makes the whole experience much more enjoyable.



Content Creation, Streaming, and Multitasking

If you use your PC for more than just gaming – like work, video editing, streaming, school, or multitasking with multiple windows open – 27-inch is definitely the better choice. 

The extra 3 inches of diagonal screen size translates to almost 30% more screen real estate than a 24-inch monitor, which makes it much easier to have your game, stream chat, editing tools, and browser tabs open at the same time without everything feeling cramped. Even for just working from home, the extra space makes a huge difference in productivity.







Conclusion

At the end of the day, the choice between 24-inch and 27-inch for gaming comes down to your personal needs and setup. Pick a 24-inch monitor if you primarily play fast-paced competitive games, have a small-to-mid desk under 60 inches wide, are building a budget PC, or sit closer than 70cm to your screen. 

Pick a 27-inch monitor if you mostly play casual or single-player games, need extra screen space for work or multitasking, have a desk 60 inches or wider, sit 70cm or further from your screen, and have a mid-range or better GPU that can handle 1440p gaming.

We break down key differences between 24-inch and 27-inch gaming monitors to help you pick the right size for your playstyle and setup.

24-Inch vs 27-Inch for Gaming: Which Size Is Better for Most Players in 2026

Hardware Tips                                                   

 HDR10 is a high-dynamic range protocol that utilizes 

, offering 64 times the detail of standard 8-bit (SDR) displays. 

While HDR10 provides superior contrast and life-like brightness, it creates a significant "Thermal Gap" by increasing the computational load on your GPU and CPU. Without proper cooling, this extra data processing leads to 

, which is the primary cause of sudden FPS drops and stuttering in HDR-enabled games.

The Science of 10-Bit Color: How HDR10 Transforms Your Visuals

To understand why HDR10 impacts performance, we must look at the jump from 8-bit to 10-bit technology. Standard displays (SDR) use 8-bit color, offering 256 shades per RGB channel (16.7 million colors).

HDR10 raises this to 1,024 shades per channel, totaling 

 to set the brightness levels for entire scenes, ensuring that highlights are brighter and shadows are deeper without losing detail.

Processing 64x more color information per pixel requires massive VRAM bandwidth and constant GPU recalculations, which generates intense internal heat.

Why Enabling HDR10 Causes Thermal Throttling and Stuttering

"Why does my game stutter only when HDR is ON?"

Rendering 10-bit depth forces your GPU and CPU to run at higher voltages. This leads to 

When your hardware hits its thermal ceiling (typically ~90°C), the system automatically slashes clock speeds to prevent damage. This sudden drop in frequency is what you experience as an 

To maintain fluid 10-bit frames, your chassis must exhaust heat faster than it builds up. The 

 is specifically designed with louvered airflow panels to feed cool air directly to the GPU, preventing the "HDR Heat Trap."

DisplayHDR Tiers: Understanding 400 vs. 800 Nit Requirements

When shopping for an HDR10 monitor, you will encounter 

 certifications. These levels indicate the peak brightness (nits) your monitor can reach:

The entry-level standard. It offers a taste of better color but requires less power.

These high-tier displays demand much more from your PC's power delivery system.

Driving these intense light spikes requires a stable power foundation. A stable power supply ensures your system doesn't crash during high-contrast explosions or rapid lighting transitions.

Infrastructure for HDR: Choosing the Right Cooling and Bearings

A cinematic HDR experience is only as good as the hardware supporting it.

High-fidelity gaming generates sustained heat. Using Hydro (Hydraulic) Bearings ensures silent, long-lasting cooling (~40,000+ hours), unlike standard sleeve bearings that struggle under high-heat loads.

Because 10-bit rendering keeps your CPU under constant stress, an

 is essential to keep your boost clocks stable, preventing the calculation bottlenecks that lead to input lag.

Conclusion: Visual Performance Starts with Thermal Control

HDR10 is a transformative technology, but it requires a "Cooling First" mindset. By providing your components with the airflow and stable power they need to process 1.07 billion colors, you can ensure your "next-gen" experience remains smooth and stutter-free.

 today to unlock the full potential of HDR10 without sacrificing your FPS.





What is HDR10 in gaming? HDR10 is a high-dynamic range protocol that utilizes 10-bit color depth to display over 1.07 billion colors, offering 64 times the detail of standard 8-bit (SDR) displays. 

While HDR10 provides superior contrast and life-like brightness, it creates a significant "Thermal Gap" by increasing the computational load on your GPU and CPU. Without proper cooling, this extra data processing leads to thermal throttling, which is the primary cause of sudden FPS drops and stuttering in HDR-enabled games.



The Science of 10-Bit Color: How HDR10 Transforms Your Visuals

To understand why HDR10 impacts performance, we must look at the jump from 8-bit to 10-bit technology. Standard displays (SDR) use 8-bit color, offering 256 shades per RGB channel (16.7 million colors).

The Billion-Color Jump

HDR10 raises this to 1,024 shades per channel, totaling 1.07 billion colors.



Static Metadata

HDR10 sends fixed instructions to your darkFlash monitor to set the brightness levels for entire scenes, ensuring that highlights are brighter and shadows are deeper without losing detail.



The Performance Cost

Processing 64x more color information per pixel requires massive VRAM bandwidth and constant GPU recalculations, which generates intense internal heat.







Why Enabling HDR10 Causes Thermal Throttling and Stuttering

Many gamers ask: "Why does my game stutter only when HDR is ON?" The answer lies in the Heat Gap.

Increased Power Draw

Rendering 10-bit depth forces your GPU and CPU to run at higher voltages. This leads to transient power spikes that test the limits of your PSU.



The Throttle Trigger

When your hardware hits its thermal ceiling (typically ~90°C), the system automatically slashes clock speeds to prevent damage. This sudden drop in frequency is what you experience as an FPS stutter.



Airflow is Key

To maintain fluid 10-bit frames, your chassis must exhaust heat faster than it builds up. The darkFlash PC Case is specifically designed with louvered airflow panels to feed cool air directly to the GPU, preventing the "HDR Heat Trap."







DisplayHDR Tiers: Understanding 400 vs. 800 Nit Requirements

When shopping for an HDR10 monitor, you will encounter VESA DisplayHDR certifications. These levels indicate the peak brightness (nits) your monitor can reach:



DisplayHDR 400

The entry-level standard. It offers a taste of better color but requires less power.



DisplayHDR 800/1000

These high-tier displays demand much more from your PC's power delivery system.



PSU Stability

Driving these intense light spikes requires a stable power foundation. A stable power supply ensures your system doesn't crash during high-contrast explosions or rapid lighting transitions.



Infrastructure for HDR: Choosing the Right Cooling and Bearings

A cinematic HDR experience is only as good as the hardware supporting it.







Hydro Bearing Fans

High-fidelity gaming generates sustained heat. Using Hydro (Hydraulic) Bearings ensures silent, long-lasting cooling (~40,000+ hours), unlike standard sleeve bearings that struggle under high-heat loads.







Liquid Cooling for 10-Bit Data

Because 10-bit rendering keeps your CPU under constant stress, an AIO cooler is essential to keep your boost clocks stable, preventing the calculation bottlenecks that lead to input lag.



Conclusion: Visual Performance Starts with Thermal Control





HDR10 is a transformative technology, but it requires a "Cooling First" mindset. By providing your components with the airflow and stable power they need to process 1.07 billion colors, you can ensure your "next-gen" experience remains smooth and stutter-free.

Is your PC ready for the 10-bit era? Upgrade to a darkFlash High-Airflow Case or Liquid Cooling System today to unlock the full potential of HDR10 without sacrificing your FPS.

Unlock the secrets of HDR10: Learn how 1.07 billion colors impact your PC’s heat and how to stop thermal throttling from killing your FPS.

HDR10 Gaming Explained: Why 1.07 Billion Colors May Cause FPS Drops

How-to Guides                                                   

Choosing a monitor can feel overwhelming — there are so many specs, sizes, and prices. But don't worry: once you understand a few basics, picking the right monitor becomes surprisingly easy.

Below is a simple breakdown of the most important things to know: resolution, panel type, refresh rate, and use-case recommendations.

Resolution is the number of pixels on your screen. More pixels = clearer images.

Panel Types — How the Colors & Viewing Angles Look

Refresh Rate — How Smooth the Motion Feels

[Slow motion] 240Hz vs 144Hz vs 120Hz vs 60Hz - Monitor refresh rates

Screen Size & Ratio — How Much Space You See

Ultrawide monitors provide extra productivity space and a cinematic feel but cost more.

Color Accuracy & HDR — Optional But Nice to Have

If HDR is important, look for at least HDR400 (entry) or HDR600+ (better).

A good monitor depends on what you do. But if you want a simple, no-brainer recommendation:

It offers sharp resolution, smooth gaming, great colors, and excellent value.





Choosing a monitor can feel overwhelming — there are so many specs, sizes, and prices. But don't worry: once you understand a few basics, picking the right monitor becomes surprisingly easy.



Below is a simple breakdown of the most important things to know: resolution, panel type, refresh rate, and use-case recommendations.



Resolution — How Sharp the Image Looks

Resolution is the number of pixels on your screen. More pixels = clearer images.





(Image Credit: LogicalIncrements)


Common monitor resolutions:









Quick Tip: For most people, 1440p provides the best balance between price, performance, and clarity.



Panel Types — How the Colors & Viewing Angles Look

Monitors mainly use IPS, VA, or TN panels. Each has pros and cons.





(Image Credit: BENQ)



IPS (Most Recommended for Most Users)





Best color accuracy



Wide viewing angles



Good for work, gaming, content creation



Downside: Slightly more expensive



VA (Great Contrast, Good for Movies)





Deep blacks and high contrast



Good all-around performance



Downside: Slightly slower response times



TN (Fast & Cheap, but Lower Quality)





Very fast for esports



Cheapest panel type



Downside: Poor color accuracy and viewing angles



Quick Tip: If you don’t know what to choose, IPS is the safest and best choice.



Refresh Rate — How Smooth the Motion Feels

Measured in Hz (Hertz). Higher = smoother.





(Image Credit: [Slow motion] 240Hz vs 144Hz vs 120Hz vs 60Hz - Monitor refresh rates)









Quick Tip: For gaming, always aim for 144Hz or above.



Screen Size & Ratio — How Much Space You See





24"–27" = most common



32" = great for 4K or large desks



21:9 ultrawide = perfect for multitasking and immersive gaming

Ultrawide monitors provide extra productivity space and a cinematic feel but cost more.



Color Accuracy & HDR — Optional But Nice to Have





sRGB coverage matters for normal use



DCI-P3 is better for creative work



HDR (High Dynamic Range) makes colors pop — but only useful on high-brightness panels

If HDR is important, look for at least HDR400 (entry) or HDR600+ (better).



Which Monitor Should You Choose?





For Gaming





1440p + 144Hz



IPS or fast VA



Adaptive Sync (G-Sync / FreeSync)



For Office / Light Use





1080p or 1440p



IPS for comfort



24" or 27"



For Creative Work (Photo / Video)





4K IPS



90–100% DCI-P3



Good color calibration + HDR



For Multitaskers





34" ultrawide (3440×1440)



IPS or VA



Great for productivity



Conclusion

A good monitor depends on what you do. But if you want a simple, no-brainer recommendation:



27" IPS, 1440p, 144Hz is the perfect all-rounder for most users.

It offers sharp resolution, smooth gaming, great colors, and excellent value.





New to PC monitors? This beginner-friendly guide explains everything you need to know.

PC Monitor Buying Guide 2025: Specs, Panels & Refresh Rates Explained

As an enthusiast of games and computer DIY in this age, we, darkFlash, feel proud and grateful for keep thinking how to develop impressive and extraordinary products with high-end facilities by assembling and using the PC cases, CPU coolers, case fans, and even gaming chairs and tables in person.

Our goal is to create products that could extremely exert its effect by every user.