PrologyParts Index

STARTECH.COM ST121HDBTL

Video Extender Transmitter/Receiver - Wired - TAA Compliant - 1 Input Device

MPNST121HDBTLSTARTECH.COMHDDUpdated

Key facts

Part number
ST121HDBTL
Brand
STARTECH.COM
Category
HDD
Price
AUD 887.69≈ USD 613 Reference price (RRP)
Availability
On request — ask for a quote

Overview

This HDBaseT™ extender kit can transmit your 4K HDMI signal up to 115 ft. (35 m) over a single CAT5e or CAT6 cable. At lower resolutions up to 1080p, the extender kit can transmit your signal up to 230 ft. (70 m).

Extend video and more with HDBaseT

The extender offers a complete end-to-end video and control solution, using HDBaseT technology to extend not just HDMI, but also DC power, IR and serial controlover a single CAT5 cable. By extending so much over just one CAT5e or CAT6 cable,HDBaseT is the clear choice of every integrator and system designer.

The added benefit of power over cable means that you'll only need one power source at one side of your extension -great for extending video and control to areas where power outlets may be limited, such as industrial sites.

Serial and IR extensionoptimizes operation by enablingyou to controlthe video source or display from both the local and remotelocation.

Maximizereliability with HDBaseT certification

This HDBaseT extender has beencertified via theHDBaseT Certification Program. This certificationensures theextender is compliant with HDBaseT technical standards, and maximizes reliability with your HDMI display and video source, by ensuring compliancewith their established HDMI ecosystem.

Astonishing 4K picture quality at an impressive distance

With the A/V industryadopting4K as the new high-resolution video standard,long-range video distribution can be a challenge overstandard HDMI cables that becomesusceptible to signal degradation at 30 feet. This HDBaseT extender can maintainyour Ultra HD 4K picture quality - four times the resolution of high-definition 1080p - even at 330 feet away from your video source. Plus, because the extender supports high-definition 1080p and lower resolutions, you can comfortably use this extender to make any video source lookgreat,while future-proofing your setup for 4K implementation.

Professional installation

HDBaseT technology offers a single-cable installation, so you can integrate this solution seamlessly using your existing CAT5e or CAT6 infrastructure. Both the transmitter and receiverincluded with thisHDBaseT extender kit aremountable, so you can keep the equipment out of sight in an equipment rack, or on a wall. This helps to reduce clutter and ensure a professional installation that doesn't draw your viewers' attention away from the content on your display. It's perfect for customer-facing displays in bars,restaurants or hotel lobbies.

What is HDBaseT?

HDBaseT is a standardized, zero-latency video 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. It can do so much, with just a single cable.

Power over Cable should only be used with the transmitter and receiver that are provided with this extender kit.

Specifications

General

TAA Compliant
Yes
Maximum Video Resolution
3840 x 2160
Twisted Pair Cable Standard
Category 6
Media Type Supported
Twisted Pair
Connectivity Technology
Wired
Number of Output Devices Supported
1
Number of Input Devices Supported
1
Product Type
Video Extender Transmitter/Receiver

Manufacturer Website Address

Product Name
HDMI over CAT5 Extender with IR and Serial - HDBaseT Extender - 4K
Number of Network (RJ-45) Ports
2
Network (RJ-45)
Yes
Serial Port
Yes
Number of HDMI Inputs
1
Number of HDMI Outputs
1
HDMI In
Yes
HDMI Out
Yes
Transmitter Height
27.94 mm
Transmitter Width
66.04 mm
Transmitter Depth
91.44 mm
Receiver Height
27.94 mm
Receiver Width
66.04 mm
Receiver Depth
91.44 mm
Transmitter Weight (Approximate)
452 g
Receiver Weight (Approximate)
452 g

Reference price history

Recorded reference and list prices over time. Not Prology selling prices.

Latest
AUD 887.69≈ USD 613
Oct 2026
Lowest recorded
AUD 887.69≈ USD 613
Highest recorded
AUD 887.69≈ USD 613
Recorded
2026
1 price point

AUD 887.69 rrp, recorded

Buy or sell STARTECH.COM ST121HDBTL

Buying STARTECH.COM HDDs

Looking to buy the STARTECH.COM ST121HDBTL or a compatible HDD? Prology supplies new, refurbished and used STARTECH.COM HDDs in Australia and the United States. Send the part number and quantity for a firm price.

Selling STARTECH.COM HDDs

Have a spare or decommissioned ST121HDBTL? Prology buys used and surplus STARTECH.COM HDDs — single units or whole lots — and replies with an offer within 1 business day. Sell your ST121HDBTL.

What is the STARTECH.COM ST121HDBTL?
The STARTECH.COM ST121HDBTL is a STARTECH.COM HDD – Video Extender Transmitter/Receiver - Wired - TAA Compliant - 1 Input Device - 1 Output.
How much does the STARTECH.COM ST121HDBTL cost?
The reference price on record is AUD 887.69 (Oct 2026). It is a reference figure, not a selling price — ask Prology for a firm quote.
Where can I buy the STARTECH.COM ST121HDBTL?
It is not listed on the Prology store yet. Prology sources STARTECH.COM HDDs on request — request a quote and we reply with a firm price and lead time within 1 business day.
Can I sell a used STARTECH.COM ST121HDBTL?
Yes. Prology buys used and surplus STARTECH.COM HDDs, including the ST121HDBTL. Get an offer — sell outright or trade in against your next order.

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