CMSTEDCD GMXUS-SW219S 2-Port HDMI KVM Switch, 4K@60Hz

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Product guide

CMSTEDCD GMXUS-SW219S 2-Port HDMI KVM Switch, 4K@60Hz

The CMSTEDCD GMXUS-SW219S HDMI KVM switch lets two computers share one HDMI monitor and a keyboard and mouse, with switching from the unit or a wired desktop controller. The listing claims support up to 4K@60Hz, subject to compatible devices and a short HDMI 2.0 cable.

At a glance

Switches one HDMI monitor and shared USB peripherals between two computers.
Offers a body button and a wired desktop controller for changing the active computer.
The listing claims up to 4K@60Hz and requires a high-quality HDMI 2.0 cable no longer than 3.3 feet for that claim.
Claims plug-and-play operation without an external power supply.

Price

$15.29Save 10%

Reference price: ~~$16.99~~

Price checked: Nov 13, 2026

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Often bought together

Highwings 8K HDMI 2.1 Cable 2-Pack 3.3FT/1M, 48Gbps Ultra High Speed--Black | Braided Slim HDMI Cord, 8K60Hz 4K@120Hz 8K@60Hz, HDCP 2.2&2.3, eARC,Dynamic HDR,DTS:X Compatible for PS5/Blu-ray/Roku TV/HDTV

$15.99

Pros and cons

Pros

A single monitor and keyboard-and-mouse set can serve two computers, reducing the need to reconnect peripherals by hand.
The separate wired controller can be placed on the desktop while the switch is kept out of the way.
Two USB 2.0 ports are listed for a keyboard, mouse, or other USB 2.0 devices.

Cons

USB peripheral connections are USB 2.0, not a higher-speed USB standard.
Hotkey switching is not supported, so changing computers requires the unit button or wired controller.

Technical specifications

13 specifications

Identity
Brand	CMSTEDCD
Model	GMXUS-SW219S-Grayish Black

Video and USB
Maximum claimed resolution and refresh rate	4K@60Hz
USB ports	2 USB 2.0 ports
USB data rate	480Mbps

Connectivity and controls
Control methods listed	Push Button
Switching options	Push button on the switch or wired desktop controller
Hotkey switching	does not support hotkey switching
Computer and monitor connection	HDMI

Dimensions and installation
Mounting types listed	Panel Mount
Dimensions listed	3.86 x 2.36 x 0.63 inches
Weight listed	0.06 kg

Materials and protection
Material listed	Metal

What to know before buying

The listing requires HDMI ports on both computers and the monitor. It warns that adapters or conversion cables can cause unstable or failed video transmission, and its 4K@60Hz claim requires compatible equipment and an HDMI 2.0 cable no longer than 3.3 feet.
The listing recommends against use with Mac devices. Verify compatibility with the specific computer and peripherals before relying on this switch.

What’s in the box

USB cableIncluded
Desktop controllerCheck selected pack
2 USB 2.0 cablesCheck selected pack
After-sales service cardCheck selected pack
User manualCheck selected pack
HDMI cableNot included

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

People sharing one HDMI monitor and a keyboard and mouse between two computers.
Setups where a wired desktop selector is more useful than keyboard hotkeys.
Buyers whose display setup meets the stated HDMI and short-cable conditions for the claimed 4K@60Hz mode.

Less suited to

Users who need hotkey switching.
Setups that require USB 3.0 peripheral ports or confirmed Mac compatibility.
Setups without HDMI ports on both computers and the monitor, or that depend on conversion adapters.

CMSTEDCD GMXUS-SW219S 2-Port HDMI KVM Switch, 4K@60Hz · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 1,171 ratings

5 stars78%78%
4 stars7%7%
3 stars2%2%
2 stars3%3%
1 star10%10%

Customer feedback highlights ease of setup, convenient switching, perceived 4K picture quality, quick switching, and a tidier desk. Some customers report connectivity or compatibility problems, which matter especially in mixed-device setups. The stated HDMI requirements and Mac compatibility caution are relevant checks, but customer perceptions do not confirm the listed specifications.

Positive themes

Customers describe setup and switching as easy and convenient.
Customers mention picture quality, switching speed, and a tidier desk positively.

Mixed feedback

Connectivity feedback is mixed, with some customers reporting compatibility issues.

Frequently asked questions

How many computers and monitors does this switch connect?

The listing describes two computers sharing one HDMI monitor and a set of USB peripherals.

Does it support 4K at 60Hz?

The listing claims up to 4K@60Hz. It specifies compatible 4K-capable computers and monitor plus a high-quality HDMI 2.0 cable no longer than 3.3 feet.

How do you switch between computers?

Use the button on the switch or the wired desktop controller. The listing says hotkey switching is not supported.

Is a power adapter required?

The listing claims plug-and-play operation without an external power supply.

What is included in the package?

The explicit included-components field names a USB cable, while the feature text separately claims a desktop controller, two USB 2.0 cables, service card, and user manual. Check the selected listing because these package details conflict.