Manufacturer: QNAP, Product Type: Network Expansion Card, Controller Model: Intel Ethernet Controller E810-CAM2, Number of Ports: 2 x QSFP28, Connection: QSFP28, PCIe and Lanes: PCIe 4.0 x16, Transfer Speed: 100Gbps, IEEE Standards: IEEE Std 802.3-2018, IEEE Std 802.3cd-2018, IEEE P802.3bd-2011, IEEE Std 802.1D-2004, IEEE Std 802.1Q-2011, SR-IOV Support: Yes, iSER Support: Yes, NVGRE, VXLAN, Geneve Support: Yes, QoS Levels: 1K ingress and egress QoS levels, Supported Operating Systems: QTS / QuTS hero, Windows, Linux, Ubuntu Support: Ubuntu 18.04/20.04, Windows Server Support: Windows Server 2019, Connection and Segment: QSFP28 DAC cable or optical transceiver, Package Contents: 1 x Network Card, 1 x QIG, 2 x Brackets, Warranty: 3 years, SKU: QXG-100G2SF-E810.