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Buy Products HDBaseT Transmitter - Up to 4K HDBaseT Transmitter - Up to 4K

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Quicklinx: CC37WS00 Mfr#: ST121HDBTD
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£162.54 ex VAT
£195.04 inc VAT
Standard delivery Delivered within 3 working days


Extend HDMI to an HDBaseT display or receiver over Cat5e or CAT6 cabling. This compact transmitter uses HDBaseT technology to extend your HDMI signal up to 230 feet (70 meters) over a single CAT5e or CAT6 cable, to an HDBaseT display, projector or receiver (sold separately). The transmitter supports Ultra HD and Full HD video resolutions (4K and 1080p), with support for the accompanying digital 7.1 audio.

For a simple and tidy installation, the HDBaseT transmitter features a small footprint and a built-in HDMI cable that connects directly to your video source, reducing clutter by eliminating the need for an HDMI cable at your local source. The transmitter is powered using USB, which means you can use a USB port on your source device to power the transmitter, which is perfect for extending from areas where power outlets may be limited.

The compact transmitter works seamlessly with other HDBaseT equipment, such as HDBaseT displays, projectors, and receivers. The simplicity and versatility of this compact transmitter make it the ideal solution for transmitting an HDBaseT signal to a boardroom or classroom projector, enabling presenters in your office to quickly connect their laptop computer and share presentations or data sheets.

This transmitter extends HDMI and 7.1 surround sound over a single cable, unlike some HDMI extenders that require two cables and only offer minimal audio support. Extending HDMI with one cable reduces potential failure points while also lowering your cost in cabling.

Plus, because the HDBaseT transmitter uses standard network cables, it works with existing Ethernet infrastructures. This makes it the perfect solution for deploying digital signage in large buildings such as shopping centers, stadiums, schools or hospitals.

With high-quality HDMI cables beginning signal degradation at 30 feet, it can be difficult to maintain the brilliance of 4K video even at shorter distances. But with HDBaseT you'll be amazed at how your Ultra HD picture, four times the resolution of high-definition 1080p, is just as brilliant, even at distances up to 130 feet from your video source.

Even if you're not running 4K, HDBaseT supports High-Definition 1080p and lower resolutions at even greater distances, up to 230 feet from your source, giving you piece of mind to know that this extender will comfortably work with any HDMI video source and display.

HDBaseT is a standardized, zero-latency, video distribution technology that's revolutionizing HDMI distribution. HDBaseT uses an advanced method of modulation that enables you to distribute uncompressed HDMI audio and video along with additional signals, over a single Ethernet cable. Offering greater versatility than traditional HDMI extenders and longer distances than HDMI cables alone, HDBaseT is the clear choice for every integrator and system designer, because it can do so much, with just a single cable.



Product Description 4K HDBaseT Extender - Compact - HDMI over CAT5 / CAT6 - HDMI to HDBaseT Converter - USB Powered - Up to 4K - HDMI over Ethernet (ST121HDBTD) - video extender
Device Type
Video extender - 19 pin HDMI Type A / RJ-45
Form Factor
Max Transfer Distance
70 m
Dimensions (WxDxH)
14.4 cm x 20.7 cm x 3.8 cm
65 g
Manufacturer Warranty
2-year warranty

Detailed Specification


Device Type
Video extender
Form Factor


Connectivity Technology
Max Transfer Distance
70 m
4K resolution support, 7.1 channel audio support, Dolby TrueHD support, DTS-HD Master Audio support

Expansion / Connectivity

1 x HDMI (input) female , 1 x (output) - RJ-45 female , 1 x USB (power)


Cables Included
1 x USB cable
Compliant Standards


Power Device
External power adapter

Dimensions & Weight

14.4 cm
20.7 cm
3.8 cm
65 g

Manufacturer Warranty

Service & Support
Limited warranty - 2 years

Environmental Parameters

Min Operating Temperature
0 °C
Max Operating Temperature
40 °C
Humidity Range Operating
0 - 80% (non-condensing)

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Price Range Ex VAT: £150 - £300
Stock Status: In stock
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