 | Need some high-speed serial ports? The high performance, low maintenance PCI4S422DB9 lets you quickly and easily add two high-speed RS422/RS485 Serial interface ports to your system. This versatile card features on-card jumpers that let you configure each port as full or half-duplex depending on your needs. 0.23 Mbps, Expansion Card, PCI Interface, Cabling: Serial RS-422, Serial RS-485, Cable Connectivity, For: PC, Unix Platforms Number of Reviews: 0 | Ratings:  | Best deal: $140 $140 - $193 from 2 stores. |