QNAP QXG-5G4T-111C - Network adapter - PCIe 3.0 x4 low profile - 5GBase-T x 5 - for QNAP TDS-16489U R2, TS-EC1080, EC880, TVS-2472, 471, 671, 682, 871, 872, 882, EC880

Key Features and Benefits: Quad-port, 4-speed 5 GbE network expansion card Controller: Marvell AQtion AQC111C; driver download: Marvell AQtion driver downloads (not required for QTS) Connector: NBASE-T (RJ45) PCIe interface: PCIe Gen 3.0 x4 Transmission rates: 5Gbps/ 2.5Gbps/ 1Gbps/ 100Mbps Supported operating systems: QTS; Windows (driver required); Linux (driver required) Supported QNAP NAS: models with PCIe slot(s) (1 free slot required) Bracket: low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled