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Compact black HDMI switch box, 6.3 by 1.5 inches, two inputs one output, button on top

SHERRIVA UHD-21800 10K 8K HDMI Switch 2 In 1 Out Bi-Directional 8K@60Hz 4K@240Hz

SKU CH-3P5W-Z7TRR

A bi-directional HDMI switch routes two sources to one display or one source to two displays at 8K@60Hz and 4K@240Hz

  • Port count4
  • Adapter typeHDMI
  • Input ports4
  • Output portsFemale-to-Female
  • Product typeHDMI
  • Product dimensions6.3 in × 1.5 in × 6.3 in
  • Supports 8K@60Hz and 4K@240Hz for ultra-smooth gaming and video
  • Bi-directional design switches two sources to one display or splits one source to two displays
  • HDMI 2.1 standard delivers 48Gbps bandwidth with HDR10+ and HDCP 2.3
  • Plug-and-play operation with optional Micro USB power for low-power sources
  • Compact 6.3×1.5×6.3 in unit weighs only .091 kg

Switch purpose and audience

The SHERRIVA UHD-21800 is a bi-directional HDMI switch that handles 2-in-1-out or 1-in-2-out configurations. It serves gamers and home-theatre users who need to toggle between two 8K sources on one screen or send one source to two displays without unplugging cables.

Build integration and flexibility

The unit fits between sources such as a PS5, Xbox Series X, Blu-ray player or laptop and a display or projector using standard HDMI leads. It draws power from the HDMI connection itself, with an optional micro-USB port available for low-power sources, so no dedicated power brick is required.

Thermals noise and power

Passive operation means the switch runs silently and adds no measurable heat to an AV rack. Typical draw is satisfied by the 48 Gbps HDMI 2.1 link, while the micro-USB input (DC 5 V) only supplements marginal source output when needed.

How it compares

Measured against everything we stock in HDMI & AV Selector Switches, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 70% of the 1,998 comparable items (median $27.99).

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Specifications

Product
Brand nameSHERRIVA
Model nameUHD-21800
Part numberUHD-21800
Product typeHDMI
Adapter typeHDMI
Ports & slots
Port count4
Input ports4
Output portsFemale-to-Female
Size & build
Product dimensions6.3 in × 1.5 in × 6.3 in
Product weight0.091 kg

Questions about this item

What is the maximum video data rate this switch can sustain without signal loss?

The switch handles up to 48 Gbps, matching the HDMI 2.1 specification for 8K@60 Hz and 4K@240 Hz.

Does the unit stay cool and silent during continuous all-day operation?

It draws power only from the HDMI sources or an optional 5 V Micro USB port, so it runs passively with no fan and negligible heat.

Which cables and power source do I need to have ready before connecting this switch?

You need three HDMI cables (two for sources, one for display) and, if your sources are low-power, a standard 5 V Micro USB charger.

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