The Tether Tools TetherPro 65 ft USB 2.0 Active Extension Cable (Black) is a premium quality extension cable. Active extension cable permits longer tethering distances without any signal errors or corrupt data transfers. An active USB device enables signals and data transfers going in and out of the extension cable to buffer and ensure consistent signal quality, thus meeting USB's highest electrical and timing specifications.
Passive cables over 16 ft (4.87 m) in length, for the purpose of data transmission, may result in signal errors and noise and are not recommended. Up to four active USB extensions and one passive 15 ft (4.57 m) USB can be daisy chained together for a total of 80 ft (24.38 m) before any drop in signal or quality.
The set-up is simple, you just need to plug the male end of the active extension cable to your computer and then plug your camera or other devices' USB cable into the female end of this cable so the repeater is closest to the device, not the computer. For longer distances, you can insert additional active extension increments into the chain to achieve the needed distance.