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Small black box with HDMI and USB ports, remote button and power cable included

SMA

SMA 2 Port HDMI KVM Switch 4K@30Hz USB 2.0 with Remote

SKU CH-EX7S-77PV1

Share one keyboard, mouse, printer and camera between two computers with 4K@30Hz video and a wired remote for desk-side switching

  • Computer ports2 Ports
  • Supported video resolution3840 × 2160
  • Product typeHDMI, USB
  • Share keyboard, mouse, printer and camera across two computers via three USB 2.0 ports
  • Switch sources with front-panel button or wired remote for a tidy desk
  • Supports 4K at 30 Hz (3840 x 2160) plus 1080p and 3D video
  • Plug-and-play operation with included 5 V DC adapter for stable power
  • Works with Windows, macOS, Linux, Chrome OS, PS4 and Xbox

Two-Port HDMI KVM Switch

This SMA switch lets you share a single keyboard, mouse, printer, camera and monitor between two computers. It supports video up to 3840 x 2160 at 30 Hz and includes three USB 2.0 ports for peripherals. The unit comes with two USB cables, a wired remote controller and a 5 V DC power adapter for stable operation.

Ideal for dual-system desks, not for hot-key users

Home-office workers and gamers who swap a laptop and a desktop will appreciate the push-button and remote switching modes. Buyers who need keyboard hot-key switching or more than two computer ports should look at a different KVM model.

4K at 30 Hz video limit

The maximum supported resolution is 3840 x 2160 at 30 Hz, with compatibility down to 1080P and 3D formats. If your workflow requires 4K at 60 Hz or higher refresh rates, this switch will not meet that requirement.

How it compares

Measured against everything we stock in KVM Switches & Rack Consoles, at today’s prices. Recalculated every night.

Price $29.99
Cheaper than about 87% of the 4,010 comparable items (median $105.49).

Specifications

Product
Product typeHDMI, USB
Display
Supported video resolution3840 × 2160
Ports & slots
Computer ports2 Ports

Questions about this item

How do I connect the two computers and where do I plug the 5 V DC power cable?

Connect each computer to one of the two HDMI ports and the matching USB 2.0 port using the supplied cables, then attach the 5 V DC power cable to the switch to ensure stable operation with high-power peripherals.

Will the USB 2.0 ports need a firmware update or driver installation later?

No driver or firmware is required; the switch is plug-and-play on Windows 10, 8, 7, XP, Vista, Mac OS, Linux and Chrome OS, so the USB 2.0 ports will continue working without software maintenance.

What video limit appears first when I keep both PCs running at 4K for long periods?

The HDMI output is capped at 3840 x 2160 at 30 Hz, so sustained 4K use cannot exceed that refresh rate.

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