Comtrol Corporation 30128-8 RocketPort EXPRESS Octacable DB9 Multiport Serial Adapter Changer Type: Multiport Serial Adapter Specifications: Product Type: RocketPort EXPRESS Octacable DB9 Multiport Serial Adapter Host Interface: PCI Express x1 Data Transfer Rate: Up to 921 Kbps Ports Expandability: 8 x 9-pin DB-9 Male RS-232/422/485 - Serial, Via Cable (Included) Parts: 5 years limited Labor: 5 years limited