Controller (s) Realtek RTL8125BG + ASMedia ASM1812. Quad RJ-45 Ports. PCIe 2.1, x4 Lane. Support Jumbo FramesWOL, DPDK, iSCSI, FCoE. Not-support PXE, VLAN. Compatible with Windows 7/8/10/11, Windows Server 2008 R2/2012/2016/2019, Linux 2.6. x to 5. x, Centos 6/7/8, Ubuntu 16/18/19/20, Vmware and etc.