Hikvision DS-7732NXI-K4(D) 32-Channel NVR, Up to 256 Mbps incoming bandwidth, adopts Hikvision AcuSense technology to minimize manual effort and security costs, IP Video Input 32-ch, Incoming Bandwidth 256 Mbps, Outgoing Bandwidth 160 Mbps, SATA 4 SATA interfaces Capacity Up to 10 TB per HDD, Serial Interface 2 RS-485, Front panel: 2 × USB 2.0; Rear panel: 1 × USB 3.0, operating temperature: -10 °C to 55 °C, dimensions: 445 × 400 × 75 mm, weight: 5kg