1. PCI-E 2.5G network card, PCIe to RJ45 Gigabit Ethernet adapter, 2.5G high-speed transmission2. RTL8125BG chip, with strong speed.3. Equipped with standard RJ45 network interface, the data transmission rate is up to 100/1000M/2.5Gbps.4. Compatible with multiple systems, supporting Win7/8/10/11 and Linux.5. Thickened gold finger is used for more reliable contact and more stable transmission. Reduce problems such as hardware contact failure and sudden disconnection.Product name:PCI-e 2.5G Network CardMain control chip: RTL8125BGBus interface: PCI-EX1 (compatible with X1/X4/X8/16)Extension interface: RJ-45Interface rate: 2.5GbpsTransmission rate: 100/1000/2500MbpsCompatible system: Windows/Linux/ESXi/ROSProduct size: 65 x 53mmColour:blackMaterial:PCB+MetalPackage Contents:1 x PCI-e 2.5G Network Card1 x half height bezeOnly 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.