Supports bus widths: Gen4 x1, Gen3 x4, x2, x1 Support PCI Express Gen-III x4 Supports line rates up to 16.0 GT/s, 8.0 GT/s, and 5.0 GT/s per Jumbo frame support up to 16 KB Support 10G/5G/2.5G/1000M/100M LAN speed 2.5W typical 10GBASE-T operating power per port: 100 meters of Cat 6A 1.5W typical 5GBASE-T operating power per port 1W typical 1GBASE-T operating power per port Audio Video Bridging (AVB) and /1588v2 Synchronous Ethernet (Sync-E), ITU-T standard in accordance with IEEE Supports Message-Signaled Interrupts ( and -X), and legacy INTx PCIe interrupts Support for Controller Sideband Interface (NC-SI) Management Component port Protocol(MCTP) IEEE 802.3an 10 Gbit/s Ethernet over unshielded twisted pair IEEE 802.3bz 2.5/5GBASE-T IEEE 802. 1000BASE-T Gigabit Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.1Q VLANs IEEE 802.3x Full Duplex and flow contro IEEE 802.3az - Energy Efficient Ethernet (EEE) Support Preboot Execution Environment (PXE) FCoE No Operation Temperature:0℃ to +108℃ Storage Temperature:-40℃ to +110℃ System Requirements: 10/11 ,Server 2022 RHEL/Centros7.3/7.6/7.9/8.2/8.3 15.11/20/20/20.6 16.04.3/18.04.5 and later releases Note:Different production batches may have different silk-screen batch numbers, but this not affect usage. Colour:Black Material:PCB+Metal Package Contents: 1 x PCIe x4 to single 10G Ethernet network Card 1 x Low Profile Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.