TF-USB-B is required to test High-, Full-, and Low-speed Devices, Hosts, and Hubs. The accessories include two matched SMA cables, two SMA-BNC adapters, two SMA terminators, USB-A Male to Mini-B Male adapter, USB-A Female to B Female adapter, USB-A Male to Micro AB Female adapter, and ten 6" USB-A to USB-B cables. TF-USB-B contains 12 Loads for new higher port hubs. These Loads are on a separate board to allow for easy connections.
