Transparent IT Expo - Portsmouth - Wednesday 13th March 2024
SKU: ST121HDBTDK Category: 4K HDMI Extender with Compact Transmitter – HDBaseT – UHD 4K

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£354.10 £295.08 Ex. VAT

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Availability: 5 in stock

Finance/leasing available for orders over £1000 Inc VAT

Free mainland UK shipping on orders over £150 Ex VAT

HDBaseT Extender Kit | 7.1 Audio | Mounting Hardware Included | Up to 70 m (230 ft.)

This 4K HDMI extender uses HDBaseT to transmit your HDMI A/V signal to a remote location up to 70 m (230 ft.) away.

Easy and Discreet Installation

The transmitter in this HDMI HDBaseT extender kit features a small footprint and built-in HDMI cable that connects directly to your source for reduced clutter. It’s powered from a USB port on your source device, which makes it easier to install in areas where power outlets may be limited. Mounting hardware is included for the receiver for a discreet, professional installation.

Get 4K Video at 130 ft. (40 m)

This HDMI over CAT6 extender maintains your UHD 4K picture quality, even at 130 feet away from your video source. Because the extender is backward compatible with 1080p and lower resolutions at 230 feet away, you can comfortably use this extender to make any video source look great. The extender also supports 7.1 audio to ensure all audio channels are captured.

Seamless Integration with Your Existing Infrastructure

The kit extends HDMI over a single cable, unlike some HDMI extenders that require two cables, reducing potential failure points and lowering your cabling costs. Ideal for digital signage, the HDMI over CAT6 extender uses standard CAT5e, CAT6 or CAT7 cables to extend HDMI video over the Ethernet infrastructure that’s already in your building.

The ST121HDBTDK is backed by a 2-year warranty and free lifetime technical support.

The Advantage

– Simple and versatile installation with a compact, USB-powered transmitter that features a built-in HDMI cable
– Astonishing picture quality with support for UHD resolutions up to 4K
– Easy integration with existing CAT5/CAT6/CAT7 infrastructure

Feature Feature Value
Type AV transmitter & receiver
Maximum resolution 4096 x 2160 pixels
Cable types supported Cat5e,Cat6
Maximum transfer distance 70 m
Audio system Multichannel
Audio output channels 7.1 channels
LED indicators Status
Cable length 0.1 m
Rack mounting Y
Plug and Play Y
Daisy chain N
Product colour Black
HDBaseT certified Y
RoHS compliance Y
Certification CE, FCC, TAA, REACH
Connectivity technology Wired
RJ-45 input ports 1
RJ-45 output ports 1
HDMI in 1
Number of HDMI outputs 1
AC input voltage 100-240 V
Operating voltage 12 V
Input current 0.6 A
Output current 1.5 A
Power consumption (typical) 18 W
External power adapter Y
Power plug type Type M
Operating temperature (T-T) 0 – 40 °C
Storage temperature (T-T) -10 – 60 °C
Operating relative humidity (H-H) 0 – 80%
Width 68 mm
Depth 80 mm
Height 25 mm
Weight 252 g
Package width 196 mm
Package depth 293 mm
Package height 74 mm
Package weight 1.6 kg
AC adapter included Y
Cables included USB
Included power plug types ANZ,EU,NA,UK
Quick start guide Y
Mounting kit Y

AV transmitter & receiver

Cable types supported


Audio system


Rack mounting





68 mm

Mounting kit


Maximum resolution

4096 x 2160 pixels

Maximum transfer distance

70 m

Cable length

0.1 m


252 g

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