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Product specifications

StarTech.com HDMI over CAT6 Extender Kit - 4K 60Hz

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StarTech HDMI over CAT6 Extender Kit - 4K 60Hz - HDMI Balun Kit - Signal up to 165 ft / 50m - HDR - 4:4:4 - 7.1 Audio Support (ST121HD20V)

Part ST121HD20V · UPC 065030880084

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  • Crystal-clear picture quality with support for resolutions up to 4K 60Hz
  • Compatible with HDR and 4:4:4 chroma subsampling for lifelike images
  • Hassle-free setup with long-distance transmission over a reliable connection
  • Ensured compatibility with HDCP 2.2 devices and displays

About this product

HDMI® Balun Kit | HDR | 4:4:4 | 7.1 Audio Support | 165 ft. (50 m)

This HDMI over CAT6 extender lets you transmit your 4K 60Hz signal up to 165 ft. (50 m) over a single CAT6 cable, with the added benefit of a local HDMI output. The extender supports High Dynamic Range (HDR), providing high contrast images with enhanced video.

Astonishing 4K Picture Quality

This HDMI Ethernet extender supports a 4K 60Hz (3840 x 2160) resolution, providing four times the picture quality of high-definition (1080p). The extender supports HDMI 2.0 capabilities, offering 4:4:4 chroma subsampling. This ensures a crystal-clear picture that's ideal for delivering video content. With HDR support, you can enjoy increased contrast, color brightness and greater luminosity in your images.

Long-Distance Transmission

Extend an HDMI signal to up to 165 ft. (50 m) with the HDMI to CAT6 converter. Use your existing CAT6 cable infrastructure with a direct connection to the converter for an easy run through walls and ceilings, saving you on installation costs.

Compatible with HDCP 2.2 Devices

Connect your HDMI 2.0 devices and displays with confidence, knowing this extender is HDCP 2.2 compliant. This lets you harness the capabilities of HDMI-enabled devices such as Blu-ray players or online streaming devices in higher resolutions. It is also backward compatible with previous generations of HDMI and HDCP.

ST121HD20V is backed by 2-year StarTech.com warranty with free lifetime technical support.

Manufacturer warranty information

2 Years

Features

Type
AV transmitter & receiver
Maximum resolution
3840 x 2160 pixels
Cable types supported
Cat6
Maximum transfer distance
50 m
Maximum refresh rate
60 Hz
Audio output channels
7.1 channels
Supported graphics resolutions
1280 x 720 (HD 720), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2560 x 1600 (WQXGA), 3840 x 2160
HDCP
Yes
HDCP version
2.2
Product colour
Black
Certification
CE, FCC, REACH

Ports & interfaces

Connectivity technology
Wired
RJ-45 input ports
1
RJ-45 output ports
1
HDMI in
1
Number of HDMI outputs
2
HDMI version
2.0

Power

AC input voltage
100 - 240 V
Input current
0.3 A
Operating voltage (transmitter)
12 V
Output current
1 A
Operating voltage (receiver)
12 V
Power plug type
Type M

Operational conditions

Operating temperature (T-T)
0 - 40 °C
Storage temperature (T-T)
-20 - 60 °C
Operating relative humidity (H-H)
0 - 80%

Weight & dimensions

Width
70 mm
Depth
97 mm
Height
13 mm
Weight
156 g

Packaging data

Package width
133 mm
Package depth
225 mm
Package height
75 mm
Package weight
777 g

Packaging content

Included power plug types
ANZ, EU, JP, NA, UK
Quick start guide
Yes
IR blaster included
Yes
IR receiver included
Yes

Technical details

Compliance certificates
RoHS

Logistics data

Harmonized System (HS) code
85176200
Master (outer) case width
468 mm
Master (outer) case length
385 mm
Master (outer) case height
294 mm
Products per master (outer) case
20 pc(s)

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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