StarTech HDMI over CAT5 HDBaseT Extender Kit - 4K
Description
4K
Extend HDMI up to 330ft (100m) over CAT5/CAT6 cable with Power over Cable to Receiver
Delivery
Australia
Standard Shipping 4-7 business days: AU $8.95*
Express Shipping 1-3 business days: AU $15*
International Shipping
New Zealand 9-12 business days: AU$21*
*During peak promotional periods, please allow additional time for your order dispatch.
Learn more
Returns
While we can’t offer a refund or replacement if you simply change your mind, we’re here to help if your item has a problem under Australian Consumer Law. You may be entitled to a refund or exchange if an item has a major problem. This is when the item:
- has a problem that would have stopped someone from buying the item if they had known about it
- is unsafe
- is significantly different from the sample or description
- doesn't do what we said it would, or what you asked for and can't be easily fixed
If the problem is not major, we will repair the item within a reasonable time. If it can’t be repaired in a reasonable time, we’ll offer a suitable resolution such as a refund or replacement. Please keep your proof of purchase — e.g. your receipt.
Read more
In stock with supplier
Ships within 8 - 24 days
BANK TRANSFER (EFT)
Accepted payment methods
Description
4K
Extend HDMI up to 330ft (100m) over CAT5/CAT6 cable with Power over Cable to Receiver
Delivery
Australia
Standard Shipping 4-7 business days: AU $8.95*
Express Shipping 1-3 business days: AU $15*
International Shipping
New Zealand 9-12 business days: AU$21*
*During peak promotional periods, please allow additional time for your order dispatch.
Learn more
Returns
While we can’t offer a refund or replacement if you simply change your mind, we’re here to help if your item has a problem under Australian Consumer Law. You may be entitled to a refund or exchange if an item has a major problem. This is when the item:
- has a problem that would have stopped someone from buying the item if they had known about it
- is unsafe
- is significantly different from the sample or description
- doesn't do what we said it would, or what you asked for and can't be easily fixed
If the problem is not major, we will repair the item within a reasonable time. If it can’t be repaired in a reasonable time, we’ll offer a suitable resolution such as a refund or replacement. Please keep your proof of purchase — e.g. your receipt.
Read more
This HDBaseT extender Kit, extends HDMI up to 330 feet (100 Meters) over a single CAT5e or CAT6 cable. The extender supports Ultra HD and Full HD resolutions (4K / 1080p) with support for 3D and the accompanying 7.1 digital audio. For added versatility, both the transmitter and receiver can be powered by the same single power source using Power Over Cable (POC). The versatility of this video extender makes it an ideal solution for digital signage applications in large buildings such as commercial shopping centers, stadiums, schools, and hospitals.
What is HDBaseT?
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 such as 100BaseT Ethernet, IR, RS-232 serial and power over cable.

Extend More than Video with HDBaseT
For greater versatility than a traditional HDMI extender or HDMI cabling alone, this HDBaseT extender offers HDMI + Power Over Cable in a single kit. The added benefit of power over cable means you’ll only need one power source at either side of your extension, great for extending to areas where power outlets may be limited.
Astonishing 4K picture quality from an impressive distance
With the A/V industry quickly adopting 4K as the new high-resolution video standard, long range video distribution can be a challenge with standard HDMI cables beginning signal degradation at 30 feet. With support for 4K you’ll be amazed at how HDBaseT maintains your Ultra HD picture quality, four times the resolution of high-definition 1080p, even at 130 feet away from your video source. Plus, because the extender supports High-Definition 1080p and lower resolutions at 330 feet away, you can comfortably use this extender to make any video source look great.
Hassle-free, Professional Installation with a Single Cable
This extender has been specially crafted for a smooth, tidy setup. HDBaseT technology allows for single cable installation, for seamless integration using existing CAT5e or CAT6 infrastructure, avoiding the hassle of running multiple cables, while reducing potential failure points. Plus, the added benefit of power over cable means you’ll only need one power source to power both your extender and receiver, great for extending to areas where power outlets may be limited. Mounting hardware is also included for both the extender and receiver for discrete, professional mounting.

The ST121HDBTPW is TAA compliant and backed by a 2-year StarTech.com warranty with free lifetime technical support.
| Connector(s) | |
| Connector A | HDMI (19 pin) |
| RJ-45 | |
| Connector B | HDMI (19 pin) |
| RJ-45 | |
| Environmental | |
| Humidity | 0% - 80 % RH (non-condensing) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -10°C to 60°C (14°F to 140°F) |
| Hardware | |
| Audio | Yes |
| AV Input | HDMI |
| AV Output | HDMI |
| Cabling | Cat 5e UTP or better |
| Daisy-Chain | No |
| Ports | 1 |
| Indicators | |
| LED Indicators | Status (receiver) |
| Status (transmitter) | |
| Packaging Information | |
| Shipping (Package) Weight | 1134 g [40 oz] |
| Performance | |
| Audio Specifications | 7.1 Surround Sound |
| Max Distance | 100 m / 330 ft |
| Maximum Cable Length | 100 m [328 ft] |
| Maximum Digital Resolutions | 4096 x 2160 (4K) @ 30 Hz (35 meters) 1920 x 1080 (1080p) @ 60 Hz (100 meters) |
| Supported Resolutions | 3840x2160 (4K) 2560x1600 1920x1200 1920x1080 (1080p) 1280x720 (720p) |
| Wide Screen Supported | Yes |
| Physical Characteristics | |
| Enclosure Type | Aluminum |
| Product Height | 25 mm [1 in] |
| Product Length | 80 mm [3.1 in] |
| Product Weight | 429 g [15.1 oz] |
| Product Width | 67 mm [2.6 in] |
| Power | |
| Input Current | 0.5 A |
| Input Voltage | 100 ~ 240 AC |
| Output Current | 1.5 A |
| Output Voltage | 12 DC |
| Plug Type | M |
| Power Consumption (In Watts) | 18 |
| Power Source | AC Adapter Included |
| Special Notes / Requirements | |
| Note | If you want to add more displays, you can daisy chain this product with the HDBaseT repeater ST121HDBTRP. |
| What's in the Box | |
| Included in Package | 4ft (1m) Cat5e Cable |
| foot pad set | |
| grounding wires | |
| HDMI extender | |
| HDMI receiver | |
| instruction manual | |
| mounting brackets | |
| screw sets | |
| universal power adapter (NA / EU / UK / AU) | |
Extend HDMI up to 330ft (100m) over CAT5/CAT6 cable with Power over Cable to Receiver
StarTech HDMI over CAT5 HDBaseT Extender Kit