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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

StarTech ST121WHDS2 Wireless HDMI Extender Kit

Overview

The StarTech ST121WHDS2 is a wireless HDMI extender kit designed to transmit uncompressed 4K 60Hz video and 2.1 channel audio up to 165 feet (50 meters). This solution eliminates the need for long HDMI cables, simplifying installations in environments where running cables is impractical or aesthetically undesirable, such as conference rooms, digital signage, or home theater setups. It operates on the 5GHz wireless frequency band, ensuring a stable connection with 18Gbps bandwidth to support high-resolution content without signal degradation.

Compatibility

This transmitter and receiver kit is compatible with any device outputting a standard HDMI signal. It supports HDCP 2.2 for content protection and is designed to work with sources such as PCs, laptops, Blu-ray players, and media servers, connecting to displays like monitors, projectors, and televisions. The kit includes both the transmitter and receiver units, ensuring a complete point-to-point wireless HDMI extension solution.

Installation Notes

The ST121WHDS2 features ESD protection up to 8kV air and 6kV contact, providing resilience against electrostatic discharge. It operates within a wide temperature range of -20°C to 60°C (-4°F to 140°F), making it suitable for various environmental conditions. The units are compact, measuring 4.9 x 4.5 x 0.8 inches (12.5 x 11.5 x 2.1 cm) and weighing 12.2 oz (346.0 g) each, facilitating discreet placement. The wireless connection operates on the 5GHz band, requiring clear line-of-sight or minimal obstructions for optimal performance, though it can penetrate some walls and ceilings.

What's in the Box

  • 1x Wireless HDMI Transmitter
  • 1x Wireless HDMI Receiver
  • 2x Power Adapters
  • 1x Mounting Bracket
  • 1x User Manual
Specifications
Max Distance: 50m [164ft]
Maximum Resolution: 4K 60Hz
Bandwidth: 18Gbps
Audio Channels: 2.1 Channel
Wireless Frequency: 5GHz
EsD Protection: 8kV air / 6kV contact
Operating Temperature: -20C to 60C
Storage Temperature: -30C to 70C
Operating Humidity: 0% - 90% RH
Product Length: 4.9 in [12.5 cm]
Product Width: 4.5 in [11.5 cm]
Product Height: 0.8 in [2.1 cm]
Product Weight: 12.2 oz [346.0 g]
Warranty: 2 Years
Brand: StarTech
MPN: ST121WHDS2
Type: Mounting Bracket
Color: Blue
Connectivity: HDMI
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StarTech Wireless HDMI Extender 4K 60HZ Transmitter - ST121WHDS2

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