• Hardware features Standards and Protocols: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3bz, IEEE802.3an,IEEE802.3az, IEEE 802.3xInterface: 1× PCI Express 3.0 x4, 1× RJ45 Gigabit/Megabit PortNetwork Media: 10GBASE-T/5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE-TXLED: 10 Gbps Link/Act, 5 / 2.5 / 1 Gbps and 100 Mbps Link/ActData Rates: 100 Mbps, 1 Gbps, 2.5 Gbps, 5 Gbps, 10 Gbps for Half-Duplex mode,200 Mbps, 2 Gbps, 5 Gbps, 10 Gbps, 20 Gbps for Full-Duplex modeDimensions: 120.8 × 98.2 × 21.5 mm (4.8 × 3.9 × 0.8 in)Flow Control: 802.3x• Others Certification: FCC, CE, RoHS,Standard/Low-Profile Brackets,Quick Installation Guide,Resource CD,1.5 m CAT6A Ethernet Cable,System Requirements: Windows 11/10/8.1/8/7, Windows Servers 2019/2016/2012 R2, Linux