B&B ULINX 485USBTB-2W Data Transfer Adapter Changer Type: USB Specifications: Connector on Second End:1 x Terminal Block - RS-485 Serial Connector on First End:1 x Type B Female USB 2.0 Mini USB Package Contents: 485USBTB-2W Data Transfer Adapter 1 x USBAMBM-3F 3 ft (1 M) USB Cable 1 x 7372 Replacement TB