The StarTech.com ST121HDBTRP HDBaseT Repeater is an accessory for the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m), ST121HDBTPW HDMI over CAT5e HDBaseT Extender (100 m) and ST121HDBTL HDMI over CAT5e HDBaseT Extender with IR and Serial. This guide covers price, what's in the box, what it works with and how it compares.

Quick facts
| Spec | Detail |
|---|---|
| Price | $306 |
| Part number | ST121HDBTRP |
| Works with | ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m), ST121HDBTPW HDMI over CAT5e HDBaseT Extender (100 m) and ST121HDBTL HDMI over CAT5e HDBaseT Extender with IR and Serial |
| Ports | 2 HDMI, 2 RJ-45, 2 x 3.5 mm, DB-9 serial |
| Power | AC adapter, 12 V DC |
| Warranty | 2 years |
| Max distance | 70 m (230 ft) per link |
| Max resolution | 4096 x 2160 (4K) @ 30 Hz |
What is the ST121HDBTRP HDBaseT Repeater?
The ST121HDBTRP sits in the middle of a StarTech HDBaseT run. It gives you an HDMI output for a display at that point and passes the signal on over another Cat 5e/6 link of up to 70 m.
Use it in long rooms or divisible spaces where one source needs to feed screens at several points. It supports up to 4K at 30 Hz.
How much does the ST121HDBTRP HDBaseT Repeater cost?
The ST121HDBTRP HDBaseT Repeater is $306. Pricing for multiple rooms, education and government is available on request. See the ST121HDBTRP HDBaseT Repeater price and availability or get a quote for multiple rooms.
Do I need the ST121HDBTRP HDBaseT Repeater?
Repeater: adds a display and 70 m to HDBaseT kits. Use it in long rooms or divisible spaces where one source needs to feed screens at several points.
What's in the box
- HDBaseT repeater
- IR remote control
- Universal power adapter (NA/UK/EU/AU)
- CAT5 cable
- Mounting kit
- Screw kit
- Rubber foot pad set
- Quick start guide
What it works with
- StarTech.com ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m)
- StarTech.com ST121HDBTPW HDMI over CAT5e HDBaseT Extender (100 m)
- StarTech.com ST121HDBTL HDMI over CAT5e HDBaseT Extender with IR and Serial
FAQ
Which extenders does it work with?
StarTech lists it for the ST121HDBTE and ST121HDBTPW kits, and names it as the daisy-chain repeater on the ST121HDBTL page.
What does it add?
A local HDMI output for another display and another HDBaseT link of up to 70 m.
Specs are StarTech.com's published figures. Prices can change.
Related guides
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