The only true USB 2.0 loop back adapters on the market

These test plug devices are unique! They have been especially designed for use with our BurnInTest Professional, BurnIntest for Linux software package or our USB3Test stand-alone application (supplied with device).

They do not require an external power supply and do not require a connection to any other port on a PC. Each plug also has its own serial number stored in EPROM on the plug, so they can be individually identified when multiple plugs are connected.

Each plug also contains its own CPU and executes its own firmware.