The StarTech 10 Gbe PCI Express SFP+ PEX10GSFP network card can increase bandwidths up to 10 Gb/s for faster data transfer rates using fibre optic cable. The card has an open SFP+ slot that can accept any MSA-compliant module or direct attach cable (DAC). PCI Express 3.0-compliant Card type standard profile (low-profile slot bracket included). Please note: Not compatible with 10/100/1000 Mb/s SFP transceivers. 10 Gigabit SFP+ transceiver or DAC required.