The StarTech.com ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m) is an extender. This guide covers price, what's in the box and how it compares.

Quick facts
| Spec | Detail |
|---|---|
| Price | $245 |
| Part number | ST121HDBTE |
| Expansion | Daisy-chain with ST121HDBTRP repeater |
| Power | AC adapter, 12 V DC; power over cable to receiver |
| Warranty | 2 years |
| Max distance | 70 m (230 ft) at 1080p 60 Hz |
| Max resolution | 4096 x 2160 (4K) @ 30 Hz (35 m) |
| Cabling | Cat 5e UTP or better |
What is the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m)?
The ST121HDBTE is the simplest StarTech HDBaseT kit: HDMI in, one Cat 5e/6 run, HDMI out. It carries 1080p up to 70 m and 4K at 30 Hz up to 35 m, and powers the receiver over the cable.
It is a good fit for a meeting room where a PC or video bar output needs to reach a display on the far wall. It doesn't extend USB, IR or serial.
How much does the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m) cost?
The ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m) is $245. Pricing for multiple rooms, education and government is available on request. See the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m) price and availability or get a quote for multiple rooms.
Do I need the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m)?
Entry HDBaseT kit: 1080p to 70 m, 4K30 to 35 m. It is a good fit for a meeting room where a PC or video bar output needs to reach a display on the far wall.
What's in the box
- HDMI over CAT5e/6 transmitter
- HDMI over CAT5e/6 receiver
- Universal power adapter (NA/EU/UK/AU)
- Mounting bracket kit
- 1.5 m Cat5e cable
- 2 grounding wires
- Instruction manual
Accessories for the ST121HDBTE HDMI over CAT5e HDBaseT Extender (70 m)
- StarTech.com ST121HDBTRP HDBaseT Repeater: Repeater: adds a display and 70 m to HDBaseT kits
FAQ
Does it support 4K?
Yes, 4K at 30 Hz up to 35 m. At 70 m it carries 1080p at 60 Hz.
Does it pass IR or RS-232?
StarTech does not list IR or serial for this model. For IR and RS-232, look at the ST121HDBTL.
Do both ends need power?
No. The receiver is powered over the cable.
Specs are StarTech.com's published figures. Prices can change.
Related guides
Outfitting several rooms, or reselling? Get a volume quote or apply for wholesale pricing →




