This flykantech.com PEX10GSFP-7211 fiber network card delivers reliable, high-performance network connectivity, by adding an open SFP+ slot to your server or high-powered workstation. It provides an easy and cost-effective way to upgrade your server or workstation to a 10 Gigabit fiber network using the SFP+ module of your choice and gives you the flexibility to use either multimode or single-mode fiber.