Changer Type: Product Type: RocketPort Universal PCI Quad DB9 Multiport Serial Adapter
Host Interface: Universal PCI
Data Transfer Rate: Up to 460.80 Kbps
Ports Expandability: 4 x 9-pin DB-9 Male RS-232 - Serial, Via Cable (Optional)
Specifications: Product Type: RocketPort EXPRESS Quadcable DB9 Multiport Serial Adapter
Host Interface: PCI Express x1
Data Transfer Rate: Up to 921 Kbps
Ports Expandability: 4 x 9-pin DB-9 Male RS-232/422/485 - Serial, Via Cable (Included)