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Key Specifications

Screen Size 40"
Resolution 3440 x 1440
Refresh Rate 144Hz
Response Time 1ms MPRT
Colour Gamut 120% sRGB
Panel Technology IPS
Adaptive-Sync Yes
Warranty 3 Years Onsite

Technical Information

Screen Size 40"
Response Time 1ms MPRT
Aspect Ratio 21:9
Backlight Technology LED
Brightness 600cd/m²
Panel Technology IPS
Viewing Angle 178° (Horizontal)/178° (Vertical)
Contrast Ratio 1200:1
Color Support 16.7M
Colour Gamut 120% sRGB
Tilt Yes
Swivel Yes
Adjustable Height Yes
Rotation No
VESA Mounting 75 x 75


Maximum Resolution 3440 x 1440
Refresh Rate 144 Hz @ UWQHD (3440 x 1440)


Audio Out Yes
Speakers No


HDMI 2.0 2
DisplayPort 1.4 1
USB-C 3.1 (90W) 1


Power Cable Yes
DP Cable Yes
Type-C Cable Yes

Addtional Functions

Low Blue light Yes
Flicker Free Yes

Physical Characteristics

Height 418 mm
Width 944 mm
Height with Stand 596 mm
Width with Stand 944 mm
Depth with Stand 286 mm
Weight w/o stand (Approximate) 9.2 kg
Weight with stand (Approximate) 11.4 kg


3 Years Onsite
In Stock: Running Low!

Regular price $999 Sale $1499

33% OFF! Save $500 (?) As a direct-to consumer brand, we convert any costs that would have gone to a middleman into savings for you! Save up to 67% off as compared to retail stores when you buy directly.

or 4x $249 with grab pay ?

Expand your horizons with this colossal 40" IPS monitor that packs the finest gaming features into one of the widest, most immersive displays.

75% of customers order a monitor arm with their monitor

Arc Titan
Core Material: Aluminium
Weight Capacity: 15kg
Screen Size: 17” - 49”
A professional looking monitor arm which comes with 2 USB 3.0 ports and cable management feature. Tilt, swivel and rotate your monitor 180° in any direction.
Arc Titan

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Order in to receive by Wednesday.

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Pay with Grab to get an additional 8% off, stackable with existing PRISM+ vouchers and earn GrabRewards!

Here’s how it works:

  • 1. Pick your preferred product and proceed to checkout.
  • 2. Apply your PRISM+ promo code.
  • 3. Select Grab as your payment method.
  • 4. Enjoy an additional discount when you checkout on Grab.

Pay for your purchase in 3 interest-free instalments and get an additional 8% OFF on top of existing PRISM+ vouchers.

Here’s how it works:

  • 1. Pick your preferred product and proceed to checkout.
  • 2. Apply your PRISM+ promo code.
  • 3. Select Atome as your payment method.
  • 4. Enjoy an additional discount when you checkout on the Atome app.

Pay for your purchase in 3 interest-free instalments.

Here’s how it works:

  • 1. Pick your preferred product and proceed to checkout.
  • 2. Apply your PRISM+ promo code.
  • 3. Select Pace as your payment method.


flat display


3440 x 1440


refresh rate


response time


high dynamic range



PRISM+'s Very First 40" Flat Ultrawide

Broaden your gaming horizons with a colossal 40" flat ultrawide screen. The first of its kind to join the PRISM+ collection, this 21:9 UWQHD monitor, is built to deliver an immersive gaming experience that prioritizes uncompromising visual quality above all.

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21:9 Aspect Ratio

See It All With Ultrawide

Why limit yourself to traditional 16:9 screens? Indulge yourself in a visual feast for the eyes with a majestic 21:9 screen ratio across a 40" screen, perfect for both multitasking and enhanced immersion for games or movies.

UWQHD Resolution

Unrivalled Picture Quality

The PG400U PRO boasts 4 times the pixel density of a regular HD display with its state of the art UWQHD resolution. Immerse yourself in crystal-clear visuals and capture even the finest details across your gaming sessions.

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144Hz Refresh Rate | 1ms Response Time

Peak Gaming Performance

The PG400U PRO combines a blistering fast 144Hz refresh rate with 1ms Response Time to give you an edge over the competition every time. Say goodbye to input lag and experience only the smoothest, most fluid gameplay.

Delta E<2 | Wide Color Gamut

Enhanced Color Profiles

With Delta E<2 color accuracy, color reproduction is certified to be as close to what was intended. Together with a Wide Color Gamut of 120% sRGB, take in the truest, most vibrant spectrum of colors - right out of the box.

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IPS Panel Technology

Vibrant At Any Angle

Our revolutionary manufacturing capabilities allowed the integration of superior IPS panels on this 40" ultrawide gaming beast - a rare feat in the industry. Experience the best visuals from any viewing angle!

Ergonomic Stand

Full Dynamic Articulation

Unlock the freedom to adjust your screen to suit any viewing angle. This ergonomic stand affords you the flexibility to find the optimal viewing position for both work and play.

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RGB Backlight | ZeroBezel

Sleek Gamer Aesthetics

Topping off a sleek black frame with the signature PRISM+ ZeroBezel form factor is a RGB backlight that dynamically changes its color to gradients and flows, making it the perfect addition to any gamer's dream setup.

90W USB-C Connectivity

Next level Compatibility & Transfer Speeds

A built-in reversible USB-C connector allows you to connect external devices like your laptop effortlessly - no adaptors needed! Enjoy faster transfer speeds and watch videos simultaneously across both screens.

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Low Blue Light | Flicker Free

Utmost Viewing Comfort

Featuring low blue light and flicker free technologies that reduces eye-strain. This means more hours of gaming with less fatigue. Game on!

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Calibrated Mode Switching

Multiple Adaptation Modes

Quickly switch through our carefully factory calibrated profiles, optimized for various usage types. From game modes for specific genres to movie mode and more.

Customer Reviews

Based on 19 reviews
Michael Ang
Cheap but Excellent Specs

High quality image, high refresh rate, perfect for hardcore gaming,
Sleek backlight as well.

Nice quality &easy to setup

The resolution &quality is great and it’s super easy to setup, loving it as it’s as big as TV already
Worth it

Fadzli Jani
To PG400U PRO or no go?

I had a tough time trying to find reviews online regarding PG400U Pro as it is very limited and most users usually tend to review more about the X series instead. However, what made me to choose this eventually was the 40inch ultrawide screen size that projects rich colour but at a very good price point! As an architect, I really need to run multiple softwares and cross check drawings a lot so this option was definitely a must! Also, having two separate monitor screens side by side may cause a lot of electric cable headache. Hence, if you are like me trying to find for honest reviews about PG400U PRO, hope you found this one! Fast delivery, quality screen & a very good price point in the market! Kudos PRISM+!

The best monitor I’ve used and own

I’m an artist and do play games a lot. This monitors really exceeded my expectations; color was bright and vibrant, 144hz is like butter smooth on my screen and the screen real estate is huge. Will definitely recommend to other people to get it if you have the space because it’s super worth the price and quality. Keep it up Prism+!!!

Anonymous Khoo
Simply love it

When I purchased this monitor, I was quite sceptical. After clicking the purchase was still thinking if the monitor is too big for my desk, will my laptop resolution be suitable. Many thoughts came running. After setup and try out, I simply love it. Everything was perfect! It helped me to be more efficient with my work too! Thank you, PRISM!