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Kuycon

21:9 · Ultrawide

The ultrawide monitor — sharp, big, or affordable.

Three 21:9 ultrawides: the W34KB a 34-inch 5K2K with dual-mode 180–360 Hz, the P40K a 40-inch 5K2K canvas, the Q34W a fast 34-inch UWQHD. Built for width — they connect to a Mac over USB-C, but at 163/139/109 PPI they are not the 218-PPI HiDPI class of our 5K and 6K.

Prefer 16:9? Compare the 4K lineup — P27D, P32K and Q32S →
Kuycon W34KB 34-inch 5K2K ultrawide 180-360Hz monitor for Mac

W34KB

From $1 299

BuyLearn more ›
Kuycon P40K 40-inch 5K2K ultrawide monitor for Mac

P40K

From $1 399

BuyLearn more ›
Kuycon Q34W 34-inch UWQHD ultrawide monitor for Mac

Q34W

From $799

BuyLearn more ›

Why ultrawide

One screen instead of two

A 21:9 ultrawide replaces a dual-monitor setup — all the width, none of the bezel seam down the middle.

Built for wide work

Extra horizontal room for video timelines, wide spreadsheets and side-by-side windows.

Using a Mac?

All three run over USB-C with 100 W charging; the W34KB adds a 40 Gbps port compatible with Thunderbolt 4/5 and an M-BOOK mode. At 163/139/109 PPI they are not Mac-class HiDPI — for native 218-PPI sharpness, see the 5K and 6K.

Works with your Mac

MacBook ProMacBook AirMac miniMac StudioiMacApple Silicon M1–M5WindowsLinux

21:9 ultrawide over USB-C, DisplayPort or HDMI — plug straight into your Mac’s Thunderbolt or USB-C port. Windows and Linux on capable GPUs too.

Full specs, side by side

W34KB
P40K
Q34W
Coating
Glossyglass
Matteanti-glare
Glossyanti-glare
Panel
Fast HVA
Nano IPSLG panel
IPS
Size
34-inch163 PPI
40-inch139 PPI
34-inch109 PPI
Resolution
5120 × 21605K2K · 21:9
5120 × 21605K2K · 21:9
3440 × 1440UWQHD · 21:9
Refresh
180–360 Hzdual-mode · 1 ms
120 Hz8 ms GtG
165 Hz
Brightness
450 nitsHDR600
400 nitsHDR
500 nitsHDR
Contrast
3300:1static
1300:1static
1000:1static
Color
98% DCI-P31.07B
98% DCI-P31.07B
P3 wide1B
Connectivity
USB-C 40G · DP 1.42× HDMI 2.1 · 100 W PD
USB-C · DP 1.42× HDMI 2.1 · 100 W PD
USB-C · DP 1.42× HDMI 2.1 · 100 W PD

Same 21:9 ultrawide format, three characters: the W34KB is the sharpest and fastest 34-inch, the P40K the biggest canvas, the Q34W the most affordable.

Frequently asked questions

Do these ultrawide monitors work with a Mac?
Yes. All three connect over USB-C, DisplayPort or HDMI on Apple Silicon Macs; one USB-C cable also delivers up to 100 W to charge the laptop. The W34KB’s USB-C port runs at 40 Gbps and is compatible with Thunderbolt 4/5. They are not Mac-class HiDPI though — 163 PPI (W34KB), 139 PPI (P40K), 109 PPI (Q34W). For native 218-PPI sharpness, see our 5K and 6K monitors.
W34KB vs P40K vs Q34W — which ultrawide should I pick?
Pick the W34KB for the sharpest and fastest 34-inch — 5120 × 2160 at 180 Hz, or 360 Hz in WFHD mode, with HDR600 and 3300:1 contrast. Pick the P40K for the largest canvas — a 40-inch 5K2K at 120 Hz, matte. Pick the Q34W for the most affordable ultrawide — a 34-inch 3440 × 1440 at 165 Hz.
What is 5K2K and UWQHD?
5K2K is 5120 × 2160 — the resolution of the 34-inch W34KB and the 40-inch P40K. UWQHD is 3440 × 1440 — the Q34W. All are 21:9 ultrawide; 5K2K has more than twice the pixels of UWQHD.
What is the W34KB’s dual-mode refresh?
The W34KB runs its full 5120 × 2160 resolution at up to 180 Hz. A one-click mode switch drops the resolution to 2560 × 1080 (WFHD) and raises the refresh rate to 360 Hz for competitive play.
Can an ultrawide charge my laptop over one cable?
Yes. The upstream USB-C port delivers up to 100 W Power Delivery, so a connected laptop runs the display and charges over a single cable.

Made up your mind?

Buy W34KB — $1 299Buy P40K — $1 399Buy Q34W — $799
Prefer 16:9? Compare the 4K lineup — P27D, P32K and Q32S →

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Apple, Mac, MacBook, MacBook Air, Mac mini, Mac Studio, Mac Pro, iMac, iPad, iPad Pro, macOS, Apple Silicon and Retina are trademarks of Apple Inc., registered in the U.S. and other countries and regions. Kuycon is an independent company and is not affiliated with, authorized, sponsored, or endorsed by Apple Inc. References to Apple products describe compatibility only.
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