How long are the power cables from the adapter to the plug?

About 4 feet and they can be powered from either end.

Could you theoreticaly use a router to create more outputs? Has anybody tried it?

Common misconception. Routers and switches use Ethernet. Ethernet is a layer-2 protocol. Ethernet is not about the cable, but about the software. These boxes use Cat5/Cat6. Those are physical cables, not protocols. These do not use Ethernet, and therefore cannot be routed or switched. To sum up: Routers and switches use Ethernet > These VGA extenders don't use Ethernet > Therefore, you cannot send this signal through routers or switches.

compatible with gefen?

We are unable to confirm exactly which device you are referencing. The ST121UTPEP will work with any direct VGA source and VGA display. A loss of video signal and quality are common symptoms when video adapters and extenders are used in conjunction with each other. Atha, StarTech.com Support

Do you offer just the receivers for sale? One cat6 into a ip switch, have three receivers. Will that work?v

See my review. It only has 1 (ONE) Ethernet (Cat5/Cat6) output, so only 1 receiver is possible. https://www.amazon.com/review/R3R714AWMSCZNC/

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- VGA Video Extender over Cat5 (ST121 Series) - Up to 500ft (150m) - VGA over Cat 5 Extender - 2 Local and 2 Remote , TAA (ST121UTP)

Product ID: 1732297

📏500ft range

🔌Cat5 compatibility

🖥️2 local displays

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Description

🚀 Elevate Your Viewing Experience!

DUAL DISPLAY DELIGHT - Connect up to 2 monitors at both local and remote locations.
ECONOMICAL CONNECTIVITY - Utilizes standard Cat5 cables for cost-effective and reliable performance.
EFFORTLESS INSTALLATION - Includes mounting brackets for a hassle-free setup.
PROFESSIONAL GRADE PERFORMANCE - Designed for TAA compliance, ensuring top-tier quality.
UNLEASH YOUR DISPLAY POTENTIAL - Extend your video reach up to 500ft with ease!

The StarTech.com VGA Video Extender over Cat5 (ST121 Series) allows you to extend your VGA video signal up to 500 feet (150 meters) using standard Cat5 cables. It supports dual local and remote displays, making it perfect for professional environments. With included mounting brackets, installation is a breeze, ensuring you can set up your displays quickly and efficiently.

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