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White rectangular transmitter and receiver units with HDMI and RJ45 ports, status LEDs, mounting brackets

STARTECH

STARTECH ST121HDBTPW HDMI over CAT5 HDBaseT Extender v extender

SKU CH-2BH6-BKYE0 MPN ST121HDBTPW

Extends HDMI up to 330 ft over CAT5 using a single power adapter for 4K video and 7.1 surround sound

  • Distance100m / 330 ft.
  • Resolution Support3840x2160 (4K) 2560x1600 1920x1200 1920x1080 (1080p) 1280x72
  • Audio7.1 Surround Sound
  • LED Indicator1 x Status (transmitter) 1 x Status (receiver)
  • Power SupplyInput Current; 0.5 A Input Voltage: 100 ~ 240 AC Output Curr
  • SpecificationAudio: Yes Ports: 1 Cabling: Cat 5e UTP or better Daisy-Chai

Option 330 ft. Distance

  • Extend HDMI up to 330 ft over CAT5 with a single power adapter
  • 4K Ultra HD resolution support at 3840x2160 for sharp video detail
  • 1 surround sound audio pass-through for immersive listening
  • Power over cable eliminates the need for a power outlet at the receiver
  • Includes mounting brackets and grounding wires for secure installation

HDMI over CAT5 Extender

The ST121HDBTPW transmits Ultra HD 4K signals up to 330 ft over a single CAT5e or better cable. It serves installers and integrators who need reliable long-distance video distribution without running multiple power lines to the display end.

Power Over Cable Design

Only the transmitter requires the included 12 V DC adapter, while the receiver draws power through the same Ethernet cable. This eliminates the need for a nearby outlet at the display location and reduces cabling to one Cat5e run plus the supplied 1 m patch lead.

4K Resolution Headroom

The extender handles 3840x2160 at 60 Hz and scales down through 2560x1600, 1920x1200 and 1080p without compression artefacts. At the full 100 m distance 4K remains stable; beyond that length or with lower-grade cable the link will drop to lower resolutions or lose sync entirely.

Points forts

  • Extend HDMI up to 330 ft over CAT5 with a single power adapter
  • 4K Ultra HD resolution support at 3840x2160 for sharp video detail
  • 1 surround sound audio pass-through for immersive listening
  • Power over cable eliminates the need for a power outlet at the receiver
  • Includes mounting brackets and grounding wires for secure installation

Caractéristiques

BrandStarTech.com
ModelST121HDBTPW
Distance100m / 330 ft.
Resolution Support3840x2160 (4K)
2560x1600
1920x1200
1920x1080 (1080p)
1280x720 (720p)
Audio7.1 Surround Sound
LED Indicator1 x Status (transmitter)
1 x Status (receiver)
Power SupplyInput Current; 0.5 A
Input Voltage: 100 ~ 240 AC
Output Current: 1.5 A
Output Voltage: 12 DC
SpecificationAudio: Yes
Ports: 1
Cabling: Cat 5e UTP or better
Daisy-Chain: No
Output Signal: HDMI
Connector A:
1 x HDMI (19 pin)
1 x RJ-45
Connector B:
1 x HDMI (19 pin)
1 x RJ-45
Maximum Cable Length: 328 ft [100 m]
Wide Screen Supported: Yes
Enclosure Type: Aluminum
FeatureUse this HDBaseT extender to extend your HDMI signal up to 330 ft. over CAT5 with only a single power adapter
Works with HDMI video source devices such as Blu-ray players & cable boxes and HDMI displays
Compatible with HDBaseT extension systems
HDBaseT extender / HDMI extender / HDMI over CAT5e / Power Over Cable HDMI Extender / HDMI over CAT5e / CAT6 Ethernet Extender
Power over cable means the remote receiver doesn't require power so you can extend to areas with lmited power outlets
Dimensions1.00" x 2.60" x 3.10"
Weight0.95 lb.
Package Content1 x HDMI extender
1 x HDMI receiver
4 x Mounting brackets
2 x Foot pad set
1 x Power Adapter
2 x Grounding Wire
1 x 4ft. (1m) Cat5e Cable
2 x Screw set
1 x Instruction Manual
Poids d’expédition1.16 kg
Dimensions du colis292 × 193 × 74 mm

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Questions sur cet article

Will the single power adapter need replacing before the transmitter and receiver units?

The extender ships with one 12 V DC, 1.5 A power adapter that powers both units through the CAT5 cable, so only that adapter may need replacement over time.

At the full 100 m cable run, which resolution drops out first?

3840x2160 at 4K is supported up to the full 100 m distance, so no listed resolution is lost before the cable-length limit is reached.

Does the transmitter or receiver generate noticeable heat when running continuously?

Each unit draws only 0.5 A at 100–240 V AC input, indicating low power draw and minimal heat during all-day operation.

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