Ports: 2 SFP+ 10GbE (use SFP+ DAC or 10GBASE-SR/LR optics; RJ45 requires a 10GBASE-T SFP+ module, typically sold separately) ^^
Compatible with: X520-DA2;
Controller: 82599ES 10GbE.
^^ Interface: PCIe 2.0 x8;
Brackets: Full-height & Low-profile included;
Boot: PXE/iSCSI.
^^ Features: SR-IOV, VMDq, MSI-X, VLAN offload, checksum/TSO/LRO, jumbo frames.
^^ PERFECT FOR: ESXi/Proxmox/Hyper-V/KVM virtualization, TrueNAS/pfSense/OPNsense, 10Gb backbone for servers & workstations.