M. 2 M+B Key form factor, expands dual independent 2.5G bps Ethernet ports for highspeed network connectivity; Backward compatible with 10/100/1000Mbps, supports autonegotiation for flexible network deployment; Highperformance network controller chip ensures lowlatency, stable and reliable data transmission; Compact M. 2 design saves chassis space, ideal for smallformfactor PCs, NAS and embedded systems; Wide OS compatibility with Windows, Linux and mainstream server operating systems for plugandplay use