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Compact black KVM switch with front buttons and multiple HDMI USB ports

SMA

SMA 2 Port USB 3.0 HDMI KVM Switch Dual Monitor 4K 60Hz

SKU CH-N2B8-79W0P

A dual-monitor KVM switch lets two computers share one keyboard, mouse and two 4K 60 Hz displays plus USB 3.0 peripherals

  • TypeHDMI
  • Computer Connections2x2 - HDMI
  • Monitor Connections2 Ports
  • Video Resolution3840 x 2160

Computer Connections 2x2 - HDMI

Struck-through versions exist but are not stocked here.

Style USB 3.0 2x2 HDMI

Struck-through versions exist but are not stocked here.

Option USB 3.0

  • Share one keyboard, mouse and two monitors across two computers
  • Dual 4K 60 Hz video with 3840 x 2160 resolution
  • Switch instantly via button, hotkey, mouse or remote
  • Two extra USB 3.0 hub ports add 5 Gbps peripheral sharing
  • Bus-powered from USB 3.0 so no separate adapter needed

Dual-Monitor KVM for Two Computers

This switch lets a single keyboard, mouse and dual-display setup control two separate PCs or laptops. It accepts two HDMI inputs from each computer and drives two monitors at up to 3840 x 2160 resolution. USB 3.0 hub ports add shared peripheral connectivity for webcams, storage or audio devices. The unit draws operating power directly from the host USB ports so no external adapter is required.

HDMI 2.0 and DP 1.2 Dual-Output Support

Each computer connects through two HDMI 2.0 links that carry 3840 x 2160 at 60 Hz, while the monitor side can use HDMI or DisplayPort 1.2 cables. Built-in EDID management keeps both displays recognised during switching, allowing extended, mirrored or spliced desktop layouts without manual reconfiguration. The video path remains purely digital with no compression artefacts.

Four Switching Modes Under Continuous Use

Front-panel button, keyboard hotkey, mouse gesture and wired remote all change the active host instantly while the USB 3.0 hub maintains 5 Gbps throughput for attached drives or cameras. Auto-scan mode cycles inputs at a configurable interval for unattended monitoring. The switch operates without driver installation on Windows, Linux or macOS and retains the active port through sleep and wake cycles.

Highlights

  • Share one keyboard, mouse and two monitors across two computers
  • Dual 4K 60 Hz video with 3840 x 2160 resolution
  • Switch instantly via button, hotkey, mouse or remote
  • Two extra USB 3.0 hub ports add 5 Gbps peripheral sharing
  • Bus-powered from USB 3.0 so no separate adapter needed

Specifications

TypeHDMI
Computer Connections2x2 - HDMI
Monitor Connections2 Ports
Video Resolution3840 x 2160

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Questions about this item

What does the 3840 x 2160 @ 60 Hz rating mean when I connect two monitors?

Each of the two monitor outputs can show 4K resolution at 60 frames per second, letting you run extended or mirrored desktops across both screens from either computer.

How does the HDMI 2.0 and DisplayPort 1.2 support limit what I can display?

The switch passes 4K at 60 Hz over HDMI 2.0 and DP 1.2, so higher refresh rates or resolutions beyond 3840 x 2160 are not supported on the monitor outputs.

What cables and ports do I need on each computer to use both monitor outputs?

Each computer must provide two HDMI outputs (or one HDMI plus one DisplayPort with an adapter) and a USB 3.0 Type-A port for the included combo cables that carry video, USB data and power.

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