Welcome to the store 1. 1000Mbps: Gigabit Ethernet card uses RTL8111H main controller chip, stable performance and excellent compatibility. Supports highspeed dualchannel networking with maximum data transfer rate of 1000 Mbps in each direction (2000 Mbps total). 2. Efficient heat dissipation: Large heat sink effectively dissipates excess heat to prevent damage from high temperatures, improve working efficiency, and extend lifespan. 3. Gold pin: Thicker gold pin for more reliable connection, reducing hardware contact errors and minimizing the risk of packet loss and distortion. 4. Support System: For Windows 7, 8, 10, and Windows Server 2008 R2, 2012, 2016, 2019, for Linux 2.6.31 to 4.11.x LTS versions. 5. Network compatible: 10BASET Ethernet card is backward compatible with 10/100BASET networks. M.2 (B Key, M Key) to PCIe Gigabit Ethernet card transfer speed, faster and more stable. No driver required. With LED indicator Product type: M.2 PCI E Gigabit Ethernet Card Material: PCB Bus type: M.2 (B Key, M Key) Main controller chip: For RTL8111H chip Cable length: Approximately 30 cm / 11.8 inches Adapter card size: Approximately 4 x 2 cm / 1.6 x 0.8 inches Network adapter card mounting: Approximately 12 cm / 4.7 inches Applicable network type: Fast Ethernet Transfer speed: 10 Mbps, 100 Mbps, 1000 Mbps Full Duplex, Half Duplex: Full Duplex, Half Duplex Adaptive Network connection type: RJ45 LED indicator: LINK, ACT (connection status) Applicable models: Desktop computer Network standard: IEEE 802.3 10BASET, IEEE 802.3u 100BASE TX, IEEE 802.3ab 1000BASE T, IEEE 802.3az Energy Efficient Ethernet, IEEE 802.3x Flow Control, 802.1q VLAN Tagging, 802.1p Layer 2 Priority Encoding