The distance and quality depends on length of the cable, and the resolution you'd like to transmit. Allow transmitting signal between VGA video ports for distances up to 66ft (approximately 20 meters) over CAT5, CAT6 ethernet cable (cable not included). Make the your connection works over regular VGA cable, You CAN VGA switches, splitters, and amplifiers. This adapter will allow you to your PC, laptop, DVR, Media Center, or Game console VGA video port to TV, Projector, Monitor with available VGA input for ultimate multimedia experience. A perfect solution for your media center PC to your HDTV.'t require external .15-pin HD-15 Male/Female to RJ45 Notes: 1.The distance is within 20m (approx 66ft) when this adapter. 2.The adaptor can't be used via a switch, router or hub. 3.'t crossover network cable. 4.The distance and quality depends on length of the cable, and the resolution you'd like to transmit.And you had better the copper, shielded cables. Colour: Black Material: PC + metal Package Contents: 1*VGA Male To RJ45 Network Cable Adapter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.