Startech
StarTech HDMI over CAT6 Extender - 4K 60Hz - 330ft / 100m - IR Support - HDMI Balun - 4K Video over CAT6 [ST121HD20L]
- SKU:
- 18205980
- MPN:
- st121hd20l
- Availability:
- Usually ships the same or next business day. In stock at our IL, PA warehouses.
- Shipping:
- Calculated at Checkout
- Stock Update:
- 12/18/2025 09:09:36 PM PST
Bulk discount rates
Below are the available bulk discount rates for each individual item when you purchase a certain amount
| Buy 2 or above | and pay only $391.63 each 391.63 |
- Stock Update:
- 12/18/2025 09:09:36 PM PST
Description
This item is brand-new, factory sealed.
StarTech.com HDMI Over CAT6 Extender - 4K 60Hz - 330ft / 100m - IR Support - HDMI Balun - 4K Video Over CAT6 (ST121HD20L)- 4K RESOLUTION SUPPORT: This HDMI over CAT6 extender maintains astonishing picture quality up to 330ft / 100m away, with support for UltraHD 4K over non-proprietary CAT6 cabling. It can also extend HD 1080p video at distances up to 460ft / 140m
- COMPLETE WITH AUDIO and IR SUPPORT: The HDMI video extender supports all known HDMI audio formats including Dolby True HD, Dolby Digital and DTS-HD for a complete audio / video experience. For added convenience, it also has IR support
- FUNCTIONAL VERSATILITY: Extend your 4K HDMI signal in offices, buildings, shopping centers, airports and more. This HDMI over Ethernet extender can also optimize the placement of your demo stations at tradeshows and in auditoriums
- HDCP COMPATIBLE: Ensured compatibility with both HDCP 1. 4 and 2. 2 lets you enjoy the full capabilities of your HDMI equipped devices
- INDUSTRY-LEADING SUPPORT: StarTech offers a 2-year and free lifetime technical support on this 4K HDMI balun, and has been the choice of IT professionals and businesses for over 30 years.
- Product Dimensions: 9.8 x 9.8 x 9.8 inches
- Item Weight: 3.14 pounds
This HDMI over CAT6 extender lets you transmit your HDMI signal over a CAT6 cable up to 330ft / 100m away. The extender supports Ultra HD 4K with support for 3D and the accompanying digital audio. Long-Distance Tramission Extend your HDMI signal to up to 330ft. / 100m with this HDMI over Ethernet extender. 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. The extender also works to extend an infrared (IR) signal, enabling you to control your video source from the remote location. Astonishing 4K Picture Quality This HDMI Ethernet extender supports a 4K 60Hz (3840 x 2160) UHD resolution, providing four times the picture quality of high-definition (1080p), ensuring a crystal-clear picture that's ideal for displaying your 4K video content in office buildings, airports, retail settings and more. Plus, because the extender supports 1080p and lower resolutions at up to 460 feet away, you can comfortably use this extender to make any video source look great. Compatible with HDCP 2. 2 Devices Connect your HDMI 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. This HDMI over Ethernet extender is backed by 2-year StarTech with free lifetime technical support.
Package Contents:
- 1 x HDMI Transmitter
- 1 x HDMI Receiver
- 1 x CAT6 Cable
- 1 x IR Kit
- 2 x Universal Power Adapters (NA/JP, EU, UK, ANZ)
- 2 x 3.5 mm to DB-9 RS-232 Adapters
- 4 x Mounting Brackets
- 1 x Quick-Start Guide
Features
- 1 x HDMI Transmitter
- 1 x HDMI Receiver
- 1 x CAT6 Cable
- 1 x IR Kit
- 2 x Universal Power Adapters (NA/JP, EU, UK, ANZ)
- 2 x 3.5 mm to DB-9 RS-232 Adapters
- 4 x Mounting Brackets
- 1 x Quick-Start Guide
Environmental Certification:
EU RoHS
Environmentally Friendly:
Yes
Environmental Compliance:
Restriction of Hazardous Substances (RoHS) 2
Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
Waste Electrical and Electronic Equipment Directive (WEEE)
Country of Origin:
Taiwan
Specs
| Physical Characteristics | |
| Product Color | Black |
| Color Family | Black |
| Warranty | |
| Limited Warranty | 2 Year |
| Interfaces/Ports | |
| Network (RJ-45) | Yes |
| HDMI Out | Yes |
| Number of HDMI Inputs | 1 |
| HDMI In | Yes |
| Number of HDMI Outputs | 1 |
| Number of Network (RJ-45) Ports | 2 |
| Video | |
| Maximum Video Resolution | 3840 x 2160 |
| Graphics Modes | 4K |
| General Information | |
| Brand Name | StarTech.com |
| Manufacturer Website Address | http://www.startech.com |
| Marketing Information | This HDMI® over CAT6 extender lets you transmit your HDMI signal over a CAT6 cable up to 330 ft. (100 m) away. The extender supports Ultra HD 4K with support for 3D and the accompanying digital audio. Long-Distance Transmission Extend your HDMI signal to up to 330 ft. (100 m) with this HDMI over Ethernet extender. 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. The extender also works to extend an infrared (IR) signal, enabling you to control your video source from the remote location. Astonishing 4K Picture Quality This HDMI Ethernet extender supports a 4K 60Hz (3840 x 2160) UHD resolution, providing four times the picture quality of high-definition (1080p), ensuring a crystal-clear picture that's ideal for displaying your 4K video content in office buildings, airports, retail settings and more. Plus, because the extender supports 1080p and lower resolutions at up to 460 feet away, you can comfortably use this extender to make any video source look great. Compatible with HDCP 2.2 Devices Connect your HDMI 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. ST121HD20L is backed by 2-year StarTech.com warranty with free lifetime technical support. More from the Manufacturer More from the Manufacturer |
| Product Type | Video Extender Transmitter/Receiver |
| Product Name | HDMI over CAT6 Extender - 4K 60Hz - 330 ft. (100 m) |
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ST121HD20L |
| Packaged Quantity | 1 Kit |
| Media & Performance | |
| Twisted Pair Cable Standard | Category 6 |
| Media Type Supported | Twisted Pair |
| Technical Information | |
| Maximum Operating Distance | 460 ft |
| Number of Input Devices Supported | 1 |
| Connectivity Technology | Wired |
| Number of Output Devices Supported | 1 |
Warranty Information