Features: Networkport: One 1000Mbps RJ45 networkport, 10M/100M/1000M adaptive. Compliance: PCIE X1 can fully leverage the advantages of PCIE high speed. Plug and Play: The networkcard will support automatic crossdetection and correction. Compatible system: The adapter card is compatible withWindowsLinuxESXI etc The bus interfaceis PCIE X1, compatible withPCIE X4/X8/16. Theinterfacespeed is 2.5Gbps. Specifications: Product Name: PCIE to 2.5Gb NetworkCard MasterChip: RTL8125BG PCIE: RJ45 2.5Gb port External: PCIE2.0 X1 Bus Speed：5Gbps Transmission rate: 10/100/1000Mbps/2.5Gbps Power supply method: adaptive bus power supply 2UBaffle: No Size:approx 12x6.6x4.1cm/4.72x2.6x1.61in Package Includes: 1PC PCIE to 2.5Gb NetworkCard note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurme