Two Computers. One Desk. One Button.
Share one 4K monitor, your keyboard, mouse and USB devices between your work laptop and home PC.
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Everything you need to run a work laptop and a personal PC from one monitor and one keyboard.
Run both machines on one display at 4Kx2K @ 60Hz with sharp, flicker-free text.
HUB 1, HUB 2, keyboard and mouse ports move your mic, webcam and drives with every switch.
Tap the front SWITCH button. LED indicators show whether PC 1 or PC 2 is live.
Gold-rimmed HDMI plus slim USB-C data ports on the rear keep cabling neat and replaceable.
Each computer gets one HDMI cable into HD 1 or HD 2 and one USB-C data cable into USB 1 or USB 2. Your monitor plugs into OUTPUT.
Keyboard, mouse receiver and two more USB devices go into the four blue front ports. They all follow whichever computer is active.
Tap the round SWITCH button. The LED moves to the other PC and your monitor locks on in about 2.5 seconds.
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2-PC to 1-Monitor Metal USB KVM Switch, 4Kx2K @ 60Hz
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$89.99 $179.99 Free Tracked Shipping (5–7 Days) Included
In Stock: Delivers in 5–7 Business Days. Free insured US delivery with tracking.
30-Day Money-Back Guarantee plus a full 2-Year Warranty.
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Description: The Cosari ProSwitch 4K is a matte-black metal 2x1 USB KVM switch that lets two computers share one 4K HDMI monitor and four USB devices. Switching is done with a physical front button, so your keyboard is never intercepted by hotkey software.
Connections: Rear: 3 × gold-rimmed HDMI (OUTPUT, HD 1, HD 2) and 2 × USB-C data uplinks (USB 1, USB 2). Front: 4 × blue USB-A (HUB 1, HUB 2, keyboard, mouse), SWITCH button and PC 1 / PC 2 LEDs.
Guarantee & Warranty: Covered by our 30-day money-back guarantee and a 2-year hardware replacement warranty against port wear.
Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.
30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.
2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.
Heavy matte-black metal stays planted on the desk, runs silent and sheds heat during long 4K sessions.
Direct USB pass-through means mechanical keyboards, gaming mice and wireless dongles behave exactly as they should.
Held 4Kx2K @ 60Hz without a single black screen across 500 switches in our lab test.
Cosari ProSwitch 4KStandard Competitors
| Feature | Cosari ProSwitch 4K | Standard Competitors |
|---|---|---|
| Switching method | Physical front button | Keyboard hotkeys that clash with Ctrl |
| Computer connection | Detachable HDMI + slim USB-C | Stiff hardwired USB-B cables |
| Housing | Heavy matte-black metal | Light plastic that slides around |
| USB devices switched | 4 front USB-A ports | Keyboard and mouse only |
| Software required | None | Drivers or apps on some models |
Swipe left for steps 2 and 3
Plug each computer's HDMI cable into HD 1 or HD 2 and its USB-C data cable into USB 1 or USB 2. Monitor goes into OUTPUT.
Keyboard, mouse receiver and up to two more USB devices go into the four blue front ports.
Tap the front SWITCH button. Your monitor and devices move to the other computer in about 2.5 seconds.
Bought this on a friend's recommendation and couldn't be happier. Switching is quick, the extra front USB ports are useful, and it has been glitch free. I was worried about video quality, but my 2K monitor stays crystal clear with no noticeable lag.
Good little KVM. Picture quality looks great, switching works as intended, and my keyboard, mouse, and USB accessories all behave normally through the blue ports up front. No complaints so far.
I really like the small footprint. It fits neatly under my monitor without taking over the desk, and having four USB-A ports on the front is very convenient. Everything has worked as advertised.
Setup was straightforward with my work computer on PC 1 and personal computer on PC 2. Both share the same monitor, keyboard, and mouse, and the front button makes swapping between them simple. Very happy with it.
This matte-black KVM box does exactly what the description says. I connected my own HDMI and USB-C cables in the rear, finished setup in a few minutes, and haven't had any problems during daily use.
Does exactly what a two-port KVM should. It switches cleanly between PC 1 and PC 2, keeps my peripherals connected, and doesn't add unnecessary complications.
I had a cabling question during setup, and the seller quickly explained that each computer needs its rear HDMI and USB-C data connection. Once I had that sorted, everything worked perfectly. Super happy with both the support and the switch.
Works perfectly for sharing one monitor between my work laptop and home desktop. I just press the front switch button and I'm on the other machine. Would recommend it to a friend.
The metal case feels sturdy, and the front USB hub ports keep my desk setup tidy. My only tiny nitpick is the normal two or three second HDMI handshake when I press SWITCH. It isn't instant, but it has been completely reliable.
I prefer this over KVMs that take over keyboard shortcuts or bury switching in an OSD menu. The dedicated front button is simple, and my keyboard passes through normally without any weird Ctrl or function-key behavior.
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Yes. The HDMI cable carries the 4K video into the rear HD 1 or HD 2 port, and the USB-C data cable into USB 1 or USB 2 connects that computer to the four front USB-A ports. Two USB-C to USB-A data cables are in the box.
No. It's a 2x1 switch: two computers into one HDMI monitor through the single OUTPUT port.
Yes. The switch passes USB straight through instead of emulating keyboard hotkeys, so dongles, QMK/VIA keyboards, USB mics and webcams work as normal.
No. It's fully plug-and-play hardware with zero drivers or apps, so it works on locked-down corporate machines.
Press the round SWITCH button on the front panel. A small LED under PC 1 or PC 2 shows which computer is active. The monitor locks on in about 2 to 3 seconds.
Yes. Any computer with an HDMI output and a USB port works, including MacBooks, Windows laptops and desktops, and Linux machines.