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Two black HDMI female-to-female couplers side by side

Boxwave

Boxwave 4K HDMI Coupler 2 Pack Female to Female Adapter

SKU CH-EHR4-BY8SY

Connects two HDMI cables for extended reach and supports 4K at 60 Hz with ARC and 48-bit colour depth

  • TypeAdapters
  • Extends HDMI reach by joining two cables
  • Supports 4K video at 60 Hz for smooth playback
  • 18 Gbps bandwidth handles high-resolution 48-bit colour
  • ARC compatibility returns audio to a receiver
  • Backwards compatible with earlier HDMI versions

Connect two HDMI cables

This pack contains two female-to-female HDMI couplers that join standard male-to-male cables for a longer run. The adapters suit home cinema, gaming consoles, computers and other HDMI sources connecting to displays or AV receivers. Each coupler maintains signal integrity across the extended link.

Extends reach without signal loss

The couplers support 4K resolution at 60 Hz with 48-bit colour depth and bandwidth up to 18 Gbps. They also pass Ethernet, 3D formats and Audio Return Channel (ARC) so every feature of the source reaches the display. Compatibility covers earlier HDMI versions for mixed-generation setups.

Simple plug-in construction

Gold-plated contacts resist corrosion and ensure reliable contact over repeated insertions. The compact barrel adds minimal bulk behind equipment racks or wall-mounted screens. No external power or drivers are required — just connect both cables and the link is active.

Highlights

  • Extends HDMI reach by joining two cables
  • Supports 4K video at 60 Hz for smooth playback
  • 18 Gbps bandwidth handles high-resolution 48-bit colour
  • ARC compatibility returns audio to a receiver
  • Backwards compatible with earlier HDMI versions

Specifications

TypeAdapters

Questions about this item

Will the gold-plated contacts on the coupler need cleaning or replacement over time?

The gold-plated contacts resist corrosion and do not require scheduled cleaning or replacement under normal indoor use.

What bandwidth ceiling limits 4K 60 Hz signals through this coupler?

The coupler supports up to 18 Gbps, which is the maximum bandwidth for 4K 60 Hz 48-bit colour signals.

Does the adapter generate any heat or noise when passing 4K 60 Hz video all day?

As a passive component it produces no audible noise and negligible heat during continuous operation.

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