QNAP QXG-25G2SF-CX6 PCIe supported NAS Dual-port SFP28 25GbE network expansion card; low-profile form factor; PCIe Gen4 x8 Supports SR-IOV and RoCE for Improved Network and VMware® Virtualization Environments Dual-port 25 GbE network expansion card Cable CAB-DAC30M-SFP28,CAB-DAC15M-SFP28,TRX-25GSFP28-SR Controller NVIDIA Mellanox ConnectX-6 Lx Number of Ports 2 x SFP28 Connector SFP28 PCIe and Lanes PCIe Gen4 x8 Transmission Rates 25Gbps/10Gbps IEEE Standards IEEE 802.3ae 10 Gigabit Ethernet 25/50 Ethernet Consortium 25G and 50G supporting all FEC modes IEEE 802.3by 25G supporting all FEC modes IEEE 802.3ad, 802.1AX Link Aggregation IEEE 802.3az Energy Efficient Ethernet (supports only “Fast-Wake' mode) IEEE 802.3ap based auto-negotiation and KR startup IEEE 802.1Q, 802.1P VLAN tags and priority IEEE 802.1Qaz (ETS) Bracket Low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled SR-IOV Support RDMA over Converged Ethernet (RoCE), Zero Touch RoCE (ZTR) Support VLAN insertion/stripping Support iSER Support NVGRE, VXLAN, Geneve Support How mant virtual functions 512 How many physical functions per host 8 Supported NAS operating systems QTS/QuTS hero (recommend an upgrade to the latest version); Windows (Driver required); Linux (Driver required) Supported QNAP NAS Models with PCIe slot(s) (1 free slot required) Support Ubuntu Commercial Linux Distribution Ubuntu 18.04/20.04 Support Windows Windows 8/10 Port and Cable SFP28 DAC cable (3M) or SFP28 OPTIC transceiver Package Contents 1 x Network card; 1 x QIG; 3 x Brackets