SYBA SY-HUB15054 USB 2.0 to 4 Port Serial RS422/485 Adapter Type: USB 2.0 to 4 Port Serial RS422/485 Color: Black Specifications: USB signals: VCC, DATA+, DATA-, GND RS-422 Signals: T/R+,T/R-, RXD+, RXD-, GND RS-485 Signals: T/R+, T/R-, GND Durable Metal Construction Baud rate: 230Kbps Automatic detection of the transmission rate of the serial interface signal Supports bus powered, self powered and high power bus powered USB configurations OS SUPPORTED: Windows OS, Linux 2.4 or later Hardware requirements: USB Port Connector A: 1 x USB 2.0 Connector B: 4 x RS422/485 Weight: 2.5 Package Contents: 1 x USB 2.0 to 4 Port Serial Adapter 1 x Driver CD 1 x USB Type A to B Cable 1 x Instruction Manual 1 x Power Adapter 4 x RS232 to RS422/485 converters