Startech HDMI over CATx Extender Pair

  • RS Stock No. 898-8456
  • Mfr. Part No. ST121SHD30
  • Manufacturer Startech
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

ST121SHD30 HDMI Over Dual Cat5 Extender

This HDMI® over dual CAT5 extender transmits your HDMI A/V signal with IR to a remote location up to 30 m (100 ft.) away over dual CAT5/CAT6 cables.

Simplify Your Setup with No Power Adapters Required

Unlike most 1080p HDMI extenders that can require up to two power adapters, this HDMI over CAT5 extender is powered using the HDMI bus and does not require external power. Power-free installation makes your digital-signage solution simple. Mounting hardware is built into both the transmitter and receiver to ensure a discreet, professional installation.

Control Your Video Source from the Remote Display

With IR extension built-in this HDMI transmitter and receiver kit offers remote infrared extension, enabling you to control your video source from the remote display, ensuring you can always see what you’re doing, even from a distance.

Crystal-clear 1080p Video

This HDMI extender maintains your 1080p picture quality, ensuring your remote picture is crystal clear. The extender also supports 7.1 audio for optimum sound quality. Support for HD video and 7.1 channel audio lets you create brilliant digital signage solutions that capture the attention of your audience.

The ST121SHD30 is backed by a 2-year warranty and free lifetime technical support.

Features & Benefits

• Hassle-free setup and no power adapter required with an extender kit that’s powered using the HDMI bus
• Easily control your video source from a remote location with IR remote control extension
• Crystal-clear picture quality with support for resolutions up to 1080p HD
• Built-in mounting hardware
• 7.1 audio support
• Cost-effective HDMI extension through non-proprietary network cabling
• Clean, professional installation, with built in mounting hardware, and no power adapters required


• Distribute HDMI in large buildings such as commercial shopping centres, stadiums, schools, and hospitals
• Extend your HDMI audio/video signals to locations where power outlets are limited such as industrial sites
• Integrators and system designers can use existing CAT5 or CAT6 infrastructure to create digital-signage solutions

What’s in the package?

• HDMI over CAT5e/6 UTP Transmitter
• HDMI over CAT5e/6 UTP Receiver
• Foot Pad Set
• IR Extender Kit
• Mounting brackets
• User Manual


Does this video extender work with set-top boxes?

Yes, this video extender works with set-top boxes, provided the set-top box meets the following requirements:
The set-top box must be High-bandwidth Digital Content Protection (HDCP) compliant.
The set-top box must support devices being connected between the video source and display. If the set-top box requires a direct cable connection between the video source and display, it won't work with this video extender.

Attribute Value
Type Extender Pair
Video Connection Type HDMI
Number of Video Ports 1
Transmission Method CATx
Maximum Resolution 1920 x 1080
Extension Distance 30m
Audio Connection Type HDMI
Local Device Dimensions 82 x 45 x 22mm
Local Device Weight 235g
Remote Device Dimensions 82 x 45 x 22mm
Remote Device Weight 235g
Local Device Depth 45mm
Local Device Height 22mm
Local Device Width 82mm
Remote Device Depth 45mm
Remote Device Width 82mm
Remote Device Height 22mm
10 In stock for delivery within 5 working day(s)
Price (ex. GST) Each
$ 166.93
(exc. GST)
$ 191.97
(inc. GST)
Per unit
1 +
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