PCI- v3.0 x8 host interface specification, and completed PCIe2.0 and 1.1. Connector Interface: Open Compute Project Board Specification V2.0 Two 10G SFP28 Ethernet ports SFP+ Spec 1.0 Compliant Two SFP28 ports, support 10Gb Ethernet. Low Profile Adapter with 2U Bracket, Virtual Protocol Interconnect (VPI) Compliant with InfiniBand Architecture Specification v1.2.1 Compliant with IEEE Standard 802.3 Compatible with copper cables and fiber optic cables using SFP28 connectors. Support SFP+ cable through QSA ( to Serial) CORE - Direct App Uninstall GPUDirect App Offload RDMA over Converged Ethernet (RoCE) End-to-end and congestion control /UDP/IP stateless offload Ethernet Encapsulation (EoIB) Supports -IOV, KVM and -V Support 16 virtual functions (depending on the ), the adapter can support up to 127 virtual functions Low-latency RDMA over 40Gb Ethernet (supports non-virtualized and -IOV virtualized servers) latency as low as 1us Traffic Steering Across Multiple Cores Support VMQ/ Net Queuee Efficient throughput and low latency performance Legacy and UEFI PXE network boot support iSCSI support, as a software iSCSI initiator in NIC mode, with NIC driver : FreeBSD, Linux5.x and above, , Windows Server2008/2012/2016/2019, Windows 7/ 8/ 8.1/ 10 32 or 64bit An available Open Compute Project motherboard socket Application scenarios: used in public cloud and private cloud, enterprise data center and high-performance computer server Type: server network card Colour:green+black Material:PCB Package Contents: 1 x Network Card 1 x CD 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.