1. M.2 2.5G Gigabit Network Card 2500M Industrial E-Sports Network Adapter M2 (B+M Key) I226 Chip 2. Adopt M.2 (B-KEY or M-KEY) Interface 3. Thickened Gold Finger Gold Plating Process, , Anti-, Wear-Resistant, And Good Stability. 4. Good Contact, Which Can Effectively Reduce Packet Loss And Improve Data Transmission Rate. 5. Strong Compatibility, Compatible With IEEE 802.3 10BASE-T, IEEE 802.3U 100BASE-TX, IEEE 802. 1000BASE-T IEEE 802.3AZ ENERGY-EFFICIENT ETHERNET, IEEE 802.3X FLOW CONTROL, 802.1Q VLAN TAGGING, 802.1P PRI LAYER 2 ORITY ENCODINGY Product name:TXA199 M.2 2.5G network card Applicable network type:Fast Ethernet Bus type:M.2(B-Key/M-Key) Transmission rate:10/100/2500Mbps Full duplex/half duplex:full duplex/half duplex adaptive Network connection type:RJ45 Applicable models:desktop computer Main chip:for 226 Network standards: IEEE 802.3 10BASE-T, IEEE 802.3U 100BASE-TX, IEEE 802. 1000BASE-T, IEEE 802.3az Energy-Efficient Ethernet, IEEE 802.3x Flow Control, 802.19VLAN Tagging, 802.1p Layer 2 Priority Encoding Driver support: for 7, 8.x, 10.11 x64 for Server@2019 Note:The picture is a high-definition rendering. Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Colour:As Shown Material:PCB+Metal+Plastic Package Contents: 1 Set * M.2 2.5G Gigabit Network Card 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.