Product information:

Port
Ports                             2
Protocol                         RS422/485
Connector                      DB9 Connector - 9 Pin Male
Tx FIFO                         Size 128
Rx FIFO                         Size 256
Operating Distance          RS422/485 Standard (4000 ft : 1200 metres)
Cable2 Port Cable:          DB9 connector (9 Pin Male)
Port Settings
Max Baud Rate               921,600
Data Bits                        7 or 8
Parity                             Odd, Even, None, Mark or Space
Stop Bits                        1 or 2
Flow Control                    RTS/CTS, XON/XOFF
Tx/Rx Modes                  Full Duplex, Half Duplex Autogating
General
Ruggedised                    No
PCB Layers                     4
ExpressCard Width          34mm (fits both 34mm and 54mm ExpressCard slots)
Power Consumption         160mA @ 3.3V
Product Weight                0.038 kg, 0.08 pounds
Product Dimensions         110(l) x 46(w) x 20(h) mm, 4.33(l) x 1.81(w) x 0.79(h) inches
Packaged Weight            0.335 kg, 0.74 pounds
Packaged Dimensions      235(l) x 170(w) x 62(h) mm, 9.25(l) x 6.69(w) x 2.44(h) inches
GTIN-12 837324001488
Interface
USB 2.0                         480 Mb/s USB 2.0 data rates.