# CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers

CMSTEDCD GMXUS-SW243 is a dual-monitor KVM switch listing support for sharing two displays and a USB peripheral set across four computers. It claims up to 8K at 60 Hz or 4K at 144 Hz, but each computer needs two HDMI outputs and the high-resolution modes depend on compatible computers, displays, and cables.

- [Original product page](https://best-deals.pro/product/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [View offer](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- Market: US
- Language: en-US
- Currency: USD
- Brand: CMSTEDCD
- Model: GMXUS-SW243-Deep Blue
- Category: Computers > Computer Accessories > Docks & Hubs
- Price: 110.49 USD
- Previous price: 129.99 USD
- Discount: 15%
- Price checked: 2026-11-14T06:11:47.192Z
- Rating: 4.4 / 5
- Reviews: 1172

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Switches a shared keyboard, mouse, two monitors, and USB peripherals among four computers, according to the listing.
- EDID emulation is claimed to retain monitor resolution and refresh-rate information when switching hosts.
- The listing says 8K60Hz and 4K144Hz modes require compatible display equipment, with 8K also requiring HDMI 2.1 cables.
- The stated USB data rate is up to 5 Gbit/s, with backward compatibility for USB 2.0 and USB 1.1 devices.

## Pros

- Four-computer, two-monitor sharing can consolidate peripherals and displays on a multi-PC desk.
- Four USB 3.0 ports provide connections for shared USB devices.
- EDID emulation is intended to preserve display settings during host switching.

## Cons

- Hotkey switching is explicitly not supported, so switching relies on the listed button or remote controls.

## Specifications

### Identity
- Brand: CMSTEDCD
- Model: GMXUS-SW243-Deep Blue
### Video and USB
- Maximum listed video modes: 8K60Hz,4K144Hz and below
- HDMI version listed: HDMI 2.1 compliant
- USB ports: four USB 3.0 ports
- Maximum video bandwidth: 48 GBPS
- Maximum data transfer rate: 5 Gbit/s
- Display feature: EDID Emulation
- USB backward compatibility: USB 2.0 and USB 1.1 devices
### Connectivity and controls
- Control methods listed: Push Button, Remote
- Hotkey switching: hotkey switching are not supported
- Compatible devices listed: Computers, Monitors, Keyboards, Mice, Printers, Scanners
- Operating systems listed: Windows/Vista/XP and Mac OS, Linux and Unix
### Dimensions and installation
- Mounting types listed: Panel Mount
- Dimensions listed: 9.33 x 3.31 x 1.38 inches
### Materials and protection
- Material listed: Metal

## Before you buy

- The computer's host graphics card must have two HDMI outputs, and the computer must support dual- or multi-screen display. The claimed high-resolution modes also require compatible computers, monitors, and cables. The listing gives 8K HDMI 2.1 cable guidance, and says to connect the included 12V 1A external power supply before using USB devices. The title and feature copy describe four computers and two monitors, while unrelated A+ entries describe other port configurations. The title gives 4K144Hz, while feature copy says up to 8K60Hz and 4K144Hz. Control details are inconsistent because the details list a button and remote, while feature copy mentions hotkey switching only to say it is unsupported. Confirm the selected listing's configuration and control method before purchase.

## In the box

- USB cables (Included)

## A good fit for

- People who need to switch two monitors and shared USB peripherals between as many as four computers.
- Workstations where preserving monitor layout and settings during host switching is useful.
- Setups with two HDMI outputs per computer and monitors and cables matched to the desired video mode.

## Less suited to

- Computers without two HDMI outputs or systems that do not support dual- or multi-screen display.
- Buyers who require keyboard hotkeys for switching.

## Customer feedback

Customer feedback describes easy, convenient setup, quick switching, appreciated 4K picture quality, and a more organized desk. Some customers also report connectivity or compatibility issues, so buyers should weigh that concern against their particular computer and display setup. The feedback reflects reported experiences and does not establish performance at the listing's maximum video modes.
- Positive themes: Customers describe the switch as easy to use and convenient to set up.
- Positive themes: Feedback praises switching speed, 4K picture quality, and desk organization.
- Mixed feedback: Connectivity feedback is mixed, with some customers reporting compatibility issues.

## Frequently asked questions

### How many computers and monitors does this KVM switch support?
The title and main feature copy describe four computers sharing two monitors and USB peripherals. The listing also contains A+ entries for other configurations, so confirm the selected variant before ordering.
### What is needed to use two monitors with each computer?
The listing says each computer's graphics card needs two HDMI outputs and the computer must support dual- or multi-screen display.
### Does it support 8K and 4K at high refresh rates?
The listing claims up to 8K60Hz and 4K144Hz. For 8K, it specifies a compatible computer, monitor, and HDMI 2.1 cables. Actual use also depends on compatible equipment.
### Can I switch hosts using keyboard hotkeys?
No. The feature text explicitly says hotkey switching is not supported, although the details list push-button and remote control methods.

## Alternative options

- [Hearvo USB 3.0 Switch for 2 Computers, 7-Port USB Sharing Switch 5Gbps \| 4 USB-A & 3 USB-C Ports, Powered USB Switcher for Laptop, PC, MacBook, Keyboard, Mouse, SSD, Printer Sharing](https://best-deals.pro/visit/hearvo-7-port-usb-3-sharing-switch-2-computers)
- [UGREEN HDMI KVM Switch 2 Monitors 2 Computers 4K@60Hz, with 4 USB 3.0 Ports \| for 2 Computers Sharing 2 Monitors Keyboard Mouse Printer Webcam, with 4 HDMI + 2 USB Cables, Power Adapter and Controller](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [Hearvo USB 3.0 HDMI KVM Switch for 2 Computers 1 Monitor, 4K@60Hz, S7232H \| Share Keyboard, Mouse, Hard Drives and Printer, EDID Adaptive, 2 USB Cables and Wired Desktop Controller,](https://best-deals.pro/visit/hearvo-s7232h-4k-hdmi-kvm-switch)
- [TIGKTING HDMI KVM Switch 4 Computers 2 Monitors 4K@60Hz EDID Emulation 4 Port KVM Switch for 4 PC Share Dual Monitor and 4 USB 3.0 Devices Support Copy and Extend Mode with Controller, Plug and Play](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [HDMI KVM Switch 3 Monitors 2 Computers 4K@60Hz KVM Switches with 4 USB 3.0 Ports for 2 Computers Sharing Triple Monitor and 4 USB Devices Support Extended & Copy Mode with 2 USB Cables](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [8K HDMI KVM Switch 1 Monitors 2 Computers 4K@120Hz KVM Switches 2 Port for 2 Computers Share Keyboard Mouse and one HD Monitor, with Desktop Controller and 2 USB Cables](https://best-deals.pro/visit/cmstedcd-gmxus-sw219-hdmi-kvm-switch)
- [USB 3.0 Three Monitor HDMI KVM Switch, 4K60Hz 4 Port HDMI KVM Switch 3 Monitors 4 C...](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [TESmart USB 3.0 HDMI KVM Switch 1 Monitor 4 Computers 4K@60Hz, 4 Port KVM \| 4 Computers Share 1 Monitor, EDID, L/R Audio & Microphone, Hotkeys, Front Buttons, IR Remote, 4 KVM Cables](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [TESmart HDMI KVM Switch 2 Monitors 2 Computers, 4K@60Hz KVM Dual Monitor \| 2 Display Modes, Dual-Screen or One Monitor per PC, EDID Emulators, L/R Audio, Hotkey/Button Switch, USB 2.0, Input Cables](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [TESmart USB 3.0 DisplayPort + HDMI KVM Switch 2 Monitors 2 Computers 4K@60Hz, Dual Monitor KVM Switch 2 Port Extended Display, EDID Emulators, Headset, Hotkey Switch, Button Switch with All Cables](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [GL.iNet Comet Q \(GL-RMQ1\) Pocket KVM, Plug & Play Remote for Laptop iPhone \| No app on target, browser based control, USB-C one cable, Wi-Fi 6, touchscreen, pocket size, for remote family tech support](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)
- [TESmart 16×1 HDMI Switch 16 in 1 Out 4K HDMI Switcher with IR Remote 4K@60hz 16 Port HDMI Switch Box HDCP 2.2,Auto Switch,19-inch Rack-Ears Mount,LAN Port Control,Auto Scan Switch](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)

## Add-ons

- [Highwings 8K HDMI 2.1 Cable 2-Pack 6.6FT, Certified 48Gbps Ultra High Speed \| 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](https://best-deals.pro/visit/cmstedcd-gmxus-sw243-dual-monitor-kvm-switch)

## Images

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 1](https://best-deals.pro/i/sMsGUdappjA4w_ghbTu_BwqSPQEdg4q178Ar6cTVUzXMfQOB6Q7tpSXbdrVaJh_6wB0n8KhjWu7trv2ADuhR7A8io4OSAEGPUhIBaIu8TtN8Qw4DNl2a.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 2](https://best-deals.pro/i/i0Qic9dE_E7CORheCkw7wORNVQb64iMSVwsR3FooKvtl-0_g1Xq1Tagp_u-T4huyXi82VcGkzWzstGaOf7O1B4x5SB_c4rrL19HPddvCUI7ayEk3na5W.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 3](https://best-deals.pro/i/Lin-2P4J-3xp2_bU6Vhh6aCHE7gVTf3kWuypc6eJmy9XlLtUhAbFvDvyjXkLM5o--6YroKuNpUhXsrQ4vnf_Eee-WZrDl0gmdLUCf40qp8pvyOwJ41HW.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 4](https://best-deals.pro/i/cKlqalRd3jKLThIkaCEn0TYJHWNP_j9B7pIhBdJWoNXbkLQvRza_exfi1JZtxFsVVWN166f6g2BudDnQiNGVDsDTwhipurmK_GKSOUqglWSEp5OMiTTS.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 5](https://best-deals.pro/i/jjvBcu-m0zq-TYbBJxn9qZGRNpribzbkeJRHbHU4JnwBMw1Yw65hKQrO5NdlCRnyhbSiEpaDGWULE0Y9-RVH9CzlxPPA6rcdOMRObe_Txq2gO2Z7ffAg.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 6](https://best-deals.pro/i/4tAdf-Xwxi2RTOI08ZUdbPU_o0qsL9egUsPigQk8dhOjdqhFCYcHjt7HBikIC1ls4bOz-kmg84Y40jrGNItJMEL-cHVWoZpgo71c1XOvQxj8pOZcmxUH.jpg)

![CMSTEDCD GMXUS-SW243 Dual-Monitor KVM Switch for 4 Computers — 7](https://best-deals.pro/i/HqcKN7ovkKflUh_UqNBvVCsrjsaUgUFI1ZWSQuuz-fyg2ghHOnlpeylcI6clTjQJ8FUTnI-USthLeNRTZTLv4ePGotp1l1jUlSzhv2u57lxWbwI8Yw_4.jpg)