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StarTech 2 Port VGA over Cat5 Video Extender – Transmitter ST1212T

  • 150 m / 500 ft.
  • 1600x1200 @ 150ft(50m)
  • 1280x1024 @ 300ft(100m)
  • 1024x768 @ 500ft(150m)
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Use the StarTech ST1212T to extend and distribute a VGA signal to two displays at distances of up to 500 feet (150 meters) over a Cat5 cable. The StarTech ST1212T is a transmitter unit. It requires one receiver unit (ST121R) per display that you are connecting.

Support for cascading multiple transmitter units, and the use of VGA over Cat 5 Repeaters (ST121EXT) for additional distance, provides a scalable system for VGA distribution. You can extend the VGA signal to more displays, at a greater distance (More hardware required, and sold separately).

detailed view and application

  • newegg Use existing Ethernet infrastructure to extend VGA video Use the StarTech ST1212T to extend VGA video by up to 500ft (150m) via a Cat 5 cable. Cat 5 extension enables you to make use of existing Ethernet infrastructure wiring to extend VGA video. It is simple and convenient.
  • newegg Plug and Play The StarTech VID2DVIDTV offers a pure hardware design. No software or drivers required; just plug and play!
  • newegg Extends signal further The VGA over Cat 5 Repeater (ST121EXT) can be used to extend the distance between the transmitter and receiver by an additional 500 feet (150 meters), for a total extension distance of 1000 feet (300 meters). Similarly, up to three repeater units can be used between the transmitter and the receiver, enabling you to connect monitors at each repeater, while still extending the total distance.

Learn more about the STARTECH ST1212T


Extender & Repeater Type
Non Wall Plate Extender


150 m / 500 ft.
Resolution Support
1600x1200 @ 150ft(50m)
1280x1024 @ 300ft(100m)
1024x768 @ 500ft(150m)


1 - VGA (15 pin; High Density D-Sub) Female
1 - VGA (15 pin; High Density D-Sub) Male
Other Connector
2 - RJ-45 Female


LED Indicator
1 - Active
1 - Power


System Requirements
One Receiver Unit (ST121R) per display that you are connecting


Power Supply
Power Adapter Included: Yes
Output Voltage: 9 DC
Output Current: 0.6A
Center Tip Polarity: Positive


Daisy-Chain: Yes
Ports: 2
Cabling: Cat 5 UTP or better
Color: Black
Enclosure Type: Aluminum


Features 2 local (VGA) output ports, 2 (VGA over Ethernet) output ports for remote connections

Extends VGA video by up to 500ft (150m)

Supports cascading multiple transmitter units

Pure hardware design, with no software or drivers to install

Compatible with the ST121EXT repeater unit for further extension

Compatible with the ST121R receiver


3.9"L x 2.6"W x 0.8"H


Package Content
1 - 2 Port VGA Extender Unit
1 - Set Rubber Feet
1 - Universal Power Adapter(NA/EU/UK)
1 - Instruction Manual

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the STARTECH ST1212T

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