Connect a PCI Express-based desktop or rackmount PC directly to a fiber optic network using the Gigabit SFP of your choice PCIe Gb E Fiber Network Card with Open SFP Slot PCIe SFP Network Card Adapter NIC PCI Express SFP Adapter - Fiber Optic Network Card PCI Express Open SFP Card - Gigabit SFP NIC Includes low-profile / half-height installation bracket Compatible with most Gigabit SFP modules - Jumbo Frame Support - Supports Full/Half-duplex Auto Negotiation and Auto MDI/MDIX