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StarTech.com ST121HDBTD Compact HDBaseT Transmitter - HDMI over CAT5 - HDMI to HDBaseT Converter -Upto4K - Extend HDMI to an HDBaseT display or receiver over Cat5e or CAT6 cabling

PB Tech price
PB Tech price
$ 322 .60
 +GST
$ 354 .86
 inc GST

Out of stock

StarTech.com ST121HDBTD Compact HDBaseT Transmitter - HDMI over CAT5 - HDMI to HDBaseT Converter -Upto4K - Extend HDMI to an HDBaseT display or receiver over Cat5e or CAT6 cabling

  • Brand: StarTech.com
  • MPN: ST121HDBTD
  • Part #: ADPSTT3383734
  • UPC: 065030863575
PB Tech price
$ 322 .60 $ 354 .86
 +GST  inc GST


Delivery: Out of stock
Express Delivery Times
Metro - Within 2-3 working days
Rural - Within 3-5 working days

Standard Delivery Times
NSW, VIC, ACT, QLD - Within 3-7 working days
SA, WA, TAS, NT - Within 5-10 working days

View all shipping info

Features

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.


Easy and discreet installation

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.


Use your own HDBaseT display, projector or receiver


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.


Seamless integration with your existing infrastructure


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.


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 
No

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) Female Input
1 - RJ-45 Female Output

Power


Power Source
 
USB-Powered

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 - HDMI transmitter
1 - 4.3 ft. [1.3 m] USB cable for power
1 - quick start guide
Manufacturer Part No:
ST121HDBTD
Brand:
Product Type:
-
UPC
065030863575
Product Family:
-
Shipping Weight:
1.01 kg
PB Part No:
ADPSTT3383734
Product Model:
ST121HDBTD
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

Learn more about delivery time-frames over Christmas and the New Year period.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

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 and 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, for DHL express delivery in-stock products typically arrive within 2-3 working days for metro areas and 3-5 working days for rural areas. For Standard delivery in-stock products typically arrive within 3-7 working days for NSW, VIC, ACT, QLD and SA deliveries and 5-10 working days for WA, TAS and NT.

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 from another country you can order from www.pbtech.com

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 ST121HDBTD Compact HDBaseT Transmitter - HDMI over CAT5 - HDMI to HDBaseT Converter -Upto4K - Extend HDMI to an HDBaseT display or receiver over Cat5e or CAT6 cabling

  • Brand: StarTech.com
  • MPN: ST121HDBTD
  • Part #: ADPSTT3383734
  • UPC:065030863575
$322.60 Excluding GST $354.86 Including GST

Date Created: 04:47, 13-09-2025
Product URL: https://www.pbtech.com/au/product/ADPSTT3383734/StarTechcom-ST121HDBTD-Compact-HDBaseT-Transmitter

Features

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.


Easy and discreet installation

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.


Use your own HDBaseT display, projector or receiver


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.


Seamless integration with your existing infrastructure


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.


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 
No

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) Female Input
1 - RJ-45 Female Output

Power


Power Source
 
USB-Powered

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 - HDMI transmitter
1 - 4.3 ft. [1.3 m] USB cable for power
1 - quick start guide
Date Created: 04:47, 13-09-2025
Product URL: https://www.pbtech.com/au/product/ADPSTT3383734/StarTechcom-ST121HDBTD-Compact-HDBaseT-Transmitter