Model: Z-TEK ZE571A - Color: Black + purple - USB 2.0 interface - Plug and play - Allows to connect RS-485/RS-422 device to your computer via USB port - TIA/EIA RS-485/RS-422 standard compliant - Up to 300bps~921.6kbps serial transmission speed - Auto sense serial signal rate - Reliable point to point point to more connection - Supports up to 32 RS-485 or RS-422 devices - Compatible with Windows 98/98SE/ME/2000/2003/2008/XP/Vista/7 Linux Mac OS Win CE - Package includes: - 1 x USB 2.0 to RS-485/RS-422 Adapter - 1 x DB9 to 6 pin Terminal Board - 1 x USB cable (72cm) - 1 x Software CD