GearMo&reg; USB to RS485 / RS422 Converter - Mini Industrial Grade Windows 10 Adapter The RS485 / RS422 end is a standard 5-terminal screw header for easy connection of single wires. Automatic send data control is enabled by default so no external flow or handshake control is needed. Windows 98, 2000, XP 32/64, Vista 32/64, Win 7 32/64 - MAC OS-9/X, Linux 2.40 and up. The Mini Converter is USB 2.0 compliant and backward compatible with USB 1.1, it is also FCC, RoHS, CE certified. Extremely compact and portable with a Working temperature of -40 to 85C and Size of 63 x 34 x 13mm. A work horse in a small package. A work horse in a small package the UT885 USB 2.0 to RS485 / RS422 Serial Converter is a top of the line serial communication device for existing COM devices.