We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular KVM switch with front port buttons and cables attached

IOGEAR

IOGEAR GCS1904H 4-Port 4K KVM Switch 2 in 1 accessory

SKU CH-X0GS-B6MZ0

Control four computers from one HDMI monitor, keyboard and mouse at up to 4096x2160 @60 Hz

  • Control 4 computers from one monitor, keyboard and mouse
  • 4K video up to 4096x2160 @60 Hz for sharp detail
  • DynaSync keeps resolution and window layout consistent when switching
  • Switch via remote selector, hotkeys or USB mouse
  • Works with Windows 10, 11, Mac OS X 10.15 + and Linux

4-Port 4K KVMP Switch

The IOGEAR GCS1904H lets you operate four computers from one HDMI monitor, a wired USB keyboard, a two or three-button USB mouse, speakers and up to two USB 2.0 peripherals. It targets professionals and home-office users who want to clear desk clutter and manage multiple Windows, Mac or Linux systems without extra software. All required cables and a remote port selector ship in the box for immediate setup.

HDMI 2.0 video bandwidth limits

The switch passes video signals up to 4096x2160 at 60 Hz or 5120x1440 at 60 Hz over its HDMI 2.0 connections. Display quality depends on the included cables; longer or non-approved cables may degrade the image. Each computer must provide an HDMI output and a USB Type-A port, and the console monitor must accept HDMI input. No other video interfaces are supported.

Metal chassis with fixed cable set

The unit uses a metal enclosure that resists flex and stays put on the supplied adhesive foot pads. Four captive HDMI-to-HDMI cables and four USB 2.0 Type-A-to-Type-B cables attach permanently, so cable routing is fixed and no replacements can be swapped in without contacting the supplier. A small external power adapter is required for operation.

Highlights

  • Control 4 computers from one monitor, keyboard and mouse
  • 4K video up to 4096x2160 @60 Hz for sharp detail
  • DynaSync keeps resolution and window layout consistent when switching
  • Switch via remote selector, hotkeys or USB mouse
  • Works with Windows 10, 11, Mac OS X 10.15 + and Linux

Specifications

No published specifications for this item yet.

Questions about this item

How many computers can I connect to the GCS1904H at once?

The GCS1904H supports up to four computers, letting you share one HDMI monitor, USB keyboard, mouse, speakers and two USB peripherals across all four systems.

What does the 4096x2160 @60 Hz figure mean for my daily work?

It means the switch can pass a true 4K signal at 60 Hz to your monitor, so text stays sharp and motion stays fluid when you flip between any of the four connected PCs.

Which HDMI version does the switch use and what resolution ceiling does that impose?

The unit uses HDMI 2.0, capping output at 4096x2160 @60 Hz or the ultra-wide 5120x1440 @60 Hz, with no support for higher refresh rates at those resolutions.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.