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Black rectangular KVM switch with front buttons, LED lights, and rear HDMI, DisplayPort, USB ports

SMA

SMA 4K 144Hz Dual Monitor KVM Switch 4 Computers HDMI 2.1 DP 1.4 USB 3.0

SKU CH-8NSY-YK0A6

Lets four computers share two monitors and four USB 3.0 peripherals at up to 8K 30 Hz or 4K 144 Hz

  • PC connectionsHDMI 2.1, DP 1.4, USB 3.0
  • Computer ports4 Port HDMI + Displayport - Dual Monitor
  • Monitor ports2 Ports ( HDMI + Displayport )
  • Supported video resolutionHDMI resolution: 4K144 Hz, 8K60 Hz; DP resolution: 8k30 Hz,
  • Switching methodPush Buttons and Wired Remote
  • Monitor supportHDMI, Displayport
  • Share four computers across two monitors with HDMI 2.1 and DP 1.4 inputs
  • Switch instantly using front-panel buttons or the included wired remote
  • Connect keyboard, mouse, printer and more via four USB 3.0 ports at 5 Gbps
  • Choose extended or copy display modes for flexible multitasking
  • Powered by the supplied 12 V DC adapter for stable operation

Four-computer dual-monitor KVM

The SMA switch lets four computers share two displays and four USB 3.0 peripherals. Each host must provide one HDMI 2.1 and one DisplayPort 1.4 output. Front-panel buttons and the included wired remote change the active system with LED indication.

Sustained switching and data throughput

USB 3.0 ports deliver up to 5 Gbps for keyboards, mice, printers or scanners during long sessions. Video paths maintain 4K at 144 Hz over HDMI and 4K at 120 Hz over DisplayPort without frame drops when the host and cables meet the required specifications.

Thermals noise and power draw

The unit ships with a 12 V DC adapter that powers the switching logic and downstream USB ports. No internal fan is present, so operation is silent. The metal chassis dissipates heat passively across its 21.2 by 7.8 by 4.5 centimetre footprint.

How it compares

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

Price $155.99
Pricier than about 70% of the 4,010 comparable items (median $105.49).

Specifications

Product
Product typeHDMI, DisplayPort, USB
Display
Supported video resolutionHDMI resolution: 4K144 Hz, 8K60 Hz; DP resolution: 8k30 Hz, 4K120 Hz.
Graphics
Monitor supportHDMI, Displayport
Ports & slots
PC connectionsHDMI 2.1, DP 1.4, USB 3.0
Computer ports4 Port HDMI + Displayport - Dual Monitor
Monitor ports2 Ports ( HDMI + Displayport )
Power
Power requirementsCome with DC 12 V Power Adapter
Size & build
Product dimensions21.2 × 7.8 × 4.5 Centimetres
In the box
In the box1*Dual Monitor KVM Switch, 4*USB3.0 Cables(1.5m/4.9 ft), 1*Wired remote controller(1.52m/5 ft), 1*User manual, 1 × 12 V Power Adapter(1.52m/5 ft)
More details
Switching methodPush Buttons and Wired Remote
Status lightsYes

Questions about this item

Does the SMA KVM switch need active cooling or does it run silently all day?

The unit has no fan and relies on passive heat dissipation; the included 12 V DC adapter supplies all power so it runs silently during continuous use.

What cables and ports must each computer already provide to connect four systems to this switch?

Every computer requires one HDMI 2.1 output and one DisplayPort 1.4 output; the package includes four USB 3.0 cables for the keyboard, mouse and other peripherals.

Will my older 1080P monitors work alongside a newer 4K 144 Hz display on the two outputs?

Yes — the switch is backward compatible with 1080P and 2K@144 Hz, so mixed-resolution monitors can be used simultaneously in extended or copy mode.

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