USB Chipset : Silicon Laboratories CP2102 Compliant : USB 1.0 , 1.1 , 2.0 Connector : USB type A Baud Rates : Full speed 12 Mbps Serial Port Port : 1 port ( Terminal Block ) RS-422 : RxD+ , RxD- ,TxD+ , TxD- , RS-485 : Data+ , DataRS-422 , RS-485 Auto Detect RS-422 , RS-485 Surge Protect Receive buffer : 576 Byte Transmit buffer : 640 Byte Baud Rate : 300 ~ 230.4 K bps Flow Control : X-On / X-Off or Hardware Driver Support Windows -98SE / 2000 / XP / Server 2003 / Mac osx / os9 / Linux 2.4 / 2.6 Power : USB Bus Power ( 5V ) Dimension Size : 55 * 40 * 25 mm ( W * D * H ) Weight : 35 gm Environment Operating Temp : 0~60℃ Storge Temp : -20 to 85℃ Humidity : 5~95 % RH