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Slots: 4 x serial (DB9 / COM) female
Interface: PCI express 1x
Chipset: Asix/MCS9900
Supports functions: RS232, RS485, and RS422
Bidirectional transmission speed: 16-50 Mbps/Port
Bitrate control support: hardware and software
Operating modes: 5, 6, 7, 8, and 9 bit
Parity: Even, Odd, None, Mark, Space
Slow mode support: IrDA
Included piece: low profile (4 pieces)
Dimensions: 65.3 x 58.2 x 16 mm
External ports: 4x DB-9 (RS-232) serial port
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.