StarTech Model ICUSB422 6 ft. Professional RS422/485 USB Serial Cable Adapter w/ COM Retention Type: USB A to DB-9 (RS422/485) Type: Cable Connectors Color: Black Connector Number: 2 Connector Detail: 1 x 9-pin DB-9 Male RS-422 Serial 1 x Type A Female USB 1.1 USB Specifications: Maximum Data Transfer Rate: 921.6Kbps Dimensions: 70 x 1.63 x 0.87 Weight(Approximate): 3.53 oz Operating Temperature: 0 Degree C to 55 Degrees C (32 Degrees F to 131 Degrees F) Storage Temperature: -20 Degrees C to 85 Degrees C (-4 Degrees F to 185 Degrees F) Humidity: 5% to 95% RH OS Compatibility: Windows 98SE/ ME/ 2000/ XP(32/64bit)/ 2003(32/64bit)/ Vista(32/64bit)/ 2008(32/64bit)/ CE(4.2/5.2/6.0), Mac 9.8/OS X, Linux 2.4.x and up; Drivers are WHQL certified. Green Compliance: Yes Green Compliance Certificate/Authority: RoHS Electrical Outlet Plug Type: Plug Type “A� (USA, Canada, Mexico, Japan)