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StarTech.com ST121HDBTDK HDBaseT Extender Kit with Compact Transmitter

HDMI Over CAT5 -Up to 4K - Extend HDMI Video Over CAT5 Cabling up to 230 Feet Away with a Small Compact Transmitter

PB Tech price
PB Tech price
AUD $ 516 .91
$ 516 .91
$516.91  +GST
$516.91

StarTech.com ST121HDBTDK HDBaseT Extender Kit with Compact Transmitter

HDMI Over CAT5 -Up to 4K - Extend HDMI Video Over CAT5 Cabling up to 230 Feet Away with a Small Compact Transmitter

  • Brand: StarTech.com
  • MPN: ST121HDBTDK
  • Part #: ADPSTT3383765
  • UPC: 065030864916
PB Tech price
AUD $ 516 .91 $ 516 .91


Delivery: Order now and it ships on 29 Jun
Estimated Delivery Times
7 - 10 working days for international destinations

View all shipping info
$516.91  +GST
$516.91
  • Brand: StarTech.com
  • MPN: ST121HDBTDK
  • Part #: ADPSTT3383765
  • UPC: 065030864916

Video Interface

HDMI

Wireless Technology

N/A

Maximum Supported Resolution

4096x2160

Extension Distance

70m

Device Type

Transmitters & Receivers

Similar in-stock products available at PB Tech right now

Features

This compact extender kit uses HDBaseT™ technology to extend your HDMI® signal up to 230 feet (70 meters), over a single CAT5e or CAT6 cable. The extender supports Ultra HD and Full HD video resolutions (4K and 1080p), with support for the accompanying digital 7.1 audio.


Easy and discreet installation

For a simple and tidy installation, the transmitter in this HDBaseT extender kit features a small footprint and a built-in HDMI cable that connects directly to your video source, reducing clutter by eliminating the need for a local HDMI cable. You can power the transmitter using a USB port on your source device, which makes it easier to install in areas where power outlets may be limited. Mounting hardware is also included for the receiver ensuring a discreet, professional installation. The simplicity and versatility of this compact transmitter make it a convenient 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. The simplicity and versatility of this video extender make it the ideal solution for digital signage applications in large buildings such as shopping centers, stadiums, schools, and hospitals.


Seamless integration with your existing infrastructure


The kit 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 and also lowers your cabling costs. Plus, because the HDBaseT extender kit uses standard CAT5e, CAT6 or CAT7 cables, it works with existing Ethernet infrastructure that's already built into large commercial buildings such shopping centers, stadiums, schools, and hospitals, making it the perfect solution for deploying digital signage.


Astonishing 4K picture quality from an impressive distance


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.


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, 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.

Specifications

Hardware

Audio 
Yes
Cabling 
Cat 5e UTP or better
Daisy-Chain 
No
Ports 
1
Rack-Mountable 
Yes

Performance


Audio Specifications 
7.1 Surround Sound
Max Distance 
70 m / 230 ft
Maximum Cable Length 
0.2 ft [0.1 m]
Maximum Digital Resolutions 
4096 x 2160 (4K) @ 30 Hz
Wide Screen Supported 
Yes

Connector(s)


Local Unit Connectors 
1 - HDMI (19 pin) Latching Female Input
1 - RJ-45 Female Output
Remote Unit Connectors 
1 - HDMI (19 pin) Female Output
1 - RJ-45 Female Input

Indicators


LED Indicators 
1 - Status LED (receiver)

Power

Center Tip Polarity 
Positive
Input Current 
0.6 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

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)

Included in Package 
1 - HDBaseT transmitter
1 - HDBaseT receiver
1 - USB power cable (transmitter) (1310mm)
1 - universal power adapter (receiver) (NA, EU, UK, ANZ)
1 - mounting kit (receiver)
1 - screw kit for mounting
1 - footpad set (receiver)
1 - quick start guide

Connector A 
1 - HDMI (19 pin) Female Input
1 - RJ-45 Female Output

Connector B 
1 - HDMI (19 pin) Female Output
1 - RJ-45 Female Input

Output Signal 
HDMI
Manufacturer Part No:
ST121HDBTDK
Brand:
Product Type:
HDBaseT Extender Kit
UPC
065030864916
Product Family:
-
Shipping Weight:
0.9 kg
PB Part No:
ADPSTT3383765
Product Model:
ST121HDBTDK
Warranty: 12 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
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Delivery & Pick-up

Shipping Costs

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To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

Delivery Estimates

The delivery time-frame (in days) for each product we sell is detailed on the individual product page just to the right of the main product image. From when you place your order, in-stock products typically arrive within 7-10 working days for all countries that we ship to.

Overseas Shipments

If you are located in New Zealand, you can order directly from our New Zealand site www.pbtech.co.nz. If you are located in Australia you can order directly from our Australian website www.pbtech.com/au

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.

Please note, items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you need to fill out our request a return form.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To return a product to PB Tech, please complete our request a return form.

Or view our returns policy for more information.

StarTech.com ST121HDBTDK HDBaseT Extender Kit with Compact Transmitter HDMI Over CAT5 -Up to 4K - Extend HDMI Video Over CAT5 Cabling up to 230 Feet Away with a Small Compact Transmitter

  • Brand: StarTech.com
  • MPN: ST121HDBTDK
  • Part #: ADPSTT3383765
  • UPC:065030864916
AUD $516.91

Date Created: 13:39, 19-06-2026
Product URL: https://www.pbtech.com/product/ADPSTT3383765/StarTechcom-ST121HDBTDK-HDBaseT-Extender-Kit-with

Features

This compact extender kit uses HDBaseT™ technology to extend your HDMI® signal up to 230 feet (70 meters), over a single CAT5e or CAT6 cable. The extender supports Ultra HD and Full HD video resolutions (4K and 1080p), with support for the accompanying digital 7.1 audio.


Easy and discreet installation

For a simple and tidy installation, the transmitter in this HDBaseT extender kit features a small footprint and a built-in HDMI cable that connects directly to your video source, reducing clutter by eliminating the need for a local HDMI cable. You can power the transmitter using a USB port on your source device, which makes it easier to install in areas where power outlets may be limited. Mounting hardware is also included for the receiver ensuring a discreet, professional installation. The simplicity and versatility of this compact transmitter make it a convenient 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. The simplicity and versatility of this video extender make it the ideal solution for digital signage applications in large buildings such as shopping centers, stadiums, schools, and hospitals.


Seamless integration with your existing infrastructure


The kit 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 and also lowers your cabling costs. Plus, because the HDBaseT extender kit uses standard CAT5e, CAT6 or CAT7 cables, it works with existing Ethernet infrastructure that's already built into large commercial buildings such shopping centers, stadiums, schools, and hospitals, making it the perfect solution for deploying digital signage.


Astonishing 4K picture quality from an impressive distance


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.


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, 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.

Specifications

Hardware

Audio 
Yes
Cabling 
Cat 5e UTP or better
Daisy-Chain 
No
Ports 
1
Rack-Mountable 
Yes

Performance


Audio Specifications 
7.1 Surround Sound
Max Distance 
70 m / 230 ft
Maximum Cable Length 
0.2 ft [0.1 m]
Maximum Digital Resolutions 
4096 x 2160 (4K) @ 30 Hz
Wide Screen Supported 
Yes

Connector(s)


Local Unit Connectors 
1 - HDMI (19 pin) Latching Female Input
1 - RJ-45 Female Output
Remote Unit Connectors 
1 - HDMI (19 pin) Female Output
1 - RJ-45 Female Input

Indicators


LED Indicators 
1 - Status LED (receiver)

Power

Center Tip Polarity 
Positive
Input Current 
0.6 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

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)

Included in Package 
1 - HDBaseT transmitter
1 - HDBaseT receiver
1 - USB power cable (transmitter) (1310mm)
1 - universal power adapter (receiver) (NA, EU, UK, ANZ)
1 - mounting kit (receiver)
1 - screw kit for mounting
1 - footpad set (receiver)
1 - quick start guide

Connector A 
1 - HDMI (19 pin) Female Input
1 - RJ-45 Female Output

Connector B 
1 - HDMI (19 pin) Female Output
1 - RJ-45 Female Input

Output Signal 
HDMI
Date Created: 13:39, 19-06-2026
Product URL: https://www.pbtech.com/product/ADPSTT3383765/StarTechcom-ST121HDBTDK-HDBaseT-Extender-Kit-with