3Com Ethernet 100 SC Fiber-FX NIC Network Interface Adapter 3CR990B-FX-97 3Com 3CR990B-FX-97 100 Secure Fiber-FX 10/100 Mbps PCI (Peripheral Component Interconnect) Network Interface Card E-G021-03-4362 (B)Interfaces/Ports: Host Interface: PCI Number of Ports: 1 Interfaces/Ports: 1 x SCNetwork & Communication: Network Technology: 100Base-FXPhysical Characteristics: Form Factor: Internal Dimensions: 2.50" Height