Network expansion card with two 25 GbE ports. The QXG-25G2SF-CX6 is equipped with an NVIDIA Mellanox ConnectX?-6 Lx SmartNIC controller, supports PCIe Gen4 (backward compatible with Gen3/Gen2) and provides transfer rates of up to 25 Gbps. With Port Trunking to combine multiple ports, up to 50 GbE can be achieved to speed up file sharing and intensive data transfer. With SR-IOV support, the QXG-25G2SF-CX6 significantly increases network efficiency and is ideal for I/O-intensive and latency-sensitive virtualization applications and data centers. Technical parameters Controller: NVIDIA Mellanox ConnectX-6 Lx Connector: SFP28 PCIe interface: PCIe Gen4 x8 (backward compatible with Gen3 and Gen2) Transmission speeds: 25 Gbps/10 Gbps Supported operating systems: QTS/QuTS Hero (we recommend using the latest version); Windows (driver required); Linux (driver required) Supported QNAP NAS: Models with at least one free PCIe slot Holder: Pre-installed low profile holder; full and specialized mounts (for selected QNAP NAS) are supplied Port and cable: SFP28 DAC (1.5 M) or SFP28 OPTIC Transceiver cable Supports 25G SerDes (NRZ)