The StarTech PEX10GSFP is a 10 Gbps PCIe SFP+ network interface card featuring an open SFP+ slot for compatibility with various fiber and copper transceivers. It supports data transfer rates up to 10 Gbps and offers advanced networking features including Jumbo Frames, Link Aggregation, and VLAN tagging. This card is compatible with Windows, macOS, and Linux.