Mini PCI-Express M.2 (B-Key & M-Key) to 2-Port Gigabit Ethernet Card. 2-Port RJ45 1000Base-T LAN Card. Supports 1-Lane 2.5Gbps PCI Express Bus. Supports Hardware ECC (Error Correction Code) and CRC (Cyclic Redundancy Check) Functions. Bundled with Low Profile Bracket and 3 Cable, Realtek RTL8111H Chipset. Item Not Available 3838777