This HDMI Over CAT6 extender transmits your HDMI audio/video signal to a remote location up to 100 m (328 ft.) away.

Get 4K at 60Hz from 70 m (230 ft.) away

This HDMI over CAT6 extender maintains your Ultra HD 4K picture quality, even at 70 m (230 ft.) away from your video source. If you're not running 4K video, this extender supports High-Definition 1080p 60Hz and lower resolutions at even greater distances, up to 100 m (328 ft.) from your HDMI source.

With full support for your HDMI 2.0 equipment, including 4K resolution at 60Hz, this extender can transmit at a bandwidth of up to 18Gbps, making it the ideal solution for high-resolution tasks requiring the highest color detail. For smoother video and color transitions, the extender offers 4:4:4 chroma subsampling via visually lossless compression, meaning every pixel gets its own unique color.

Simplify your setup

The HDMI Extender Over CAT6 offers a hassle-free solution for your digital signage project. The extender only requires a single CAT5e or CAT6 cable, so you extend an HDMI signal using existing infrastructure that’s already in your building. Plus, this HDMI extender supports Power Over Cable (POC), which means you’ll only need one power adapter connected to either your transmitter or receiver. Mounting hardware is also included for discreet, professional installation.

The ST121HDBT20L is TAA compliant and backed by a 2-year StarTech.com warranty with free lifetime technical support.

Connector(s)
Local Unit Connectors	HDMI (19 pin) Female Input
	RJ-45 Female Output
Remote Unit Connectors	HDMI (19 pin) Female Output
	RJ-45 Female Input
Environmental
Humidity	0% - 80 % RH (non-condensing)
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-10°C to 60°C (14°F to 140°F)
Hardware
Audio	Yes
Cabling	Cat 5e UTP or better
Daisy-Chain	No
Ports	1
Indicators
LED Indicators	status LED (local)
	status LED (remote)
Packaging Information
Package Height	62 mm [2.4 in]
Package Length	280 mm [11 in]
Package Width	206 mm [8.1 in]
Shipping (Package) Weight	0.2 kg [0.5 lb]
Performance
Audio Specifications	7.1 Surround Sound
Max Distance	100 m / 330 ft
Maximum Cable Length	100.1 m [328.4 ft]
Maximum Digital Resolutions	Up to 70 m: 4096 x 2160 (4K) @ 60 Hz Up to 100 m: 1080p @ 60Hz
Supported Resolutions	3840x2160 (4K) @ 60 Hz 2560x1600 1920x1200 @ 60 Hz 1920x1080 (1080p) 1280x720 (720p)
Wide Screen Supported	Yes
Physical Characteristics
Color	Black
Enclosure Type	Aluminum
Product Height	26 mm [1 in]
Product Length	102 mm [4 in]
Product Width	76 mm [3 in]
Weight of Product	110 g [3.9 oz]
Power
Center Tip Polarity	Positive
Input Current	0.6A
Input Voltage	100 ~ 240 AC
Output Current	1 A
Output Voltage	18 DC
Plug Type	M
Power Consumption (In Watts)	18
Power Source	AC Adapter Included
What's in the Box
Included in Package	HDMI over CAT6 receiver
	HDMI over CAT6 transmitter
	IR blaster
	IR receiver
	mounting brackets
	quick-start guide
	rubber feet
	universal power adapter (NA/JP, EU, UK, ANZ)

Extend HDMI over CAT5/CAT6 cabling to a remote location with support for 4K 60Hz at 70m / 230 ft and 1080p 60Hz at 100m / 328 ft
Hassle-free setup with video and power over a single CAT5e or CAT6 cable
HDMI extender over CAT6 / 4K HDMI over CAT6 / HDMI extender over CAT5 / 4K HDMI over CAT5 / 4K HDMI over Ethernet / HDMI signal booster / HDMI repeater / Video extender
Sleek professional installation with optional mounting hardware included with the 4K HDMI extender over CAT6