AddOn Network Upgrades ADD-PCIE-1SFP+ is a single open SFP+ Port TenGigabit PCI-E X8 Server Network Interface Card that complies with all IEEE 802.3 standards. It provides a high bandwidth 10Gb network speed that fully supports high-end servers. In addition, the ADD-PCIE-1SFP+ supports high level VLAN filtering function, and is compatible with Windows, Linux, FreeBSD, and VMware operating systems. The single open SFP+ Port slot allows users to choose from a variety of SFP transceivers to accomodate MMF/SMF fiber, and allow for an operating distance between 550m/10km.AddOn's Server Network Interface Cards are 100% compliant for all of our networking needs. Now you have a cost effective solution to your network upgrade needs. With our ADDON CERTIFICATION TEST Program, we can guarantee your product will work right the first time.