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Specifications Mfr Part Number: VS-8148U-RP-PRO+-US CPU: Intel Core i3 Processor (3.3GHz, Dual-Core) Memory: 4GB DDR3 RAM HDD Capacity: 8x 3.5" SATA3/SATA2 Hard Drives HDD Tray: 8x Hot-swappable and Lockable Tray LAN Port: 4x Gigabit RJ45 Ethernet Ports USB: 2x USB 3.0 Ports (rear), 4x USB 2.0 Ports (rear), Support USB pen drive, USB hub, and USB UPS etc. LED Indicators: Status, 10 GbE (reserved), LAN, eSATA (reserved), Hard Drives Buttons: Power Button and Reset Button Expansion Slot: 2 (reserved for network and storage expansion) Video Output: 1x HDMI, 1x VGA LCD Panel: Mono-LCD display with backlight; Enter button, Select button for configuration Alarm Buzzer: System Warning Recording: Number of Channels: Up to 48 Video Compression: H.264/ MPEG-4/ M-JPEG/ MxPEG (depending on the camera models) Video Setting: Video compression, resolution, quality, frame rate, audio Recording Mode: Continuous/ manual/ schedule recording Alarm recording/ multiple alarm recording schedules Auto snapshot Buffer Storage for Alarm Images (before and after Events): Pre-recording: Up to 300 sec Post-recording: Up to 300 sec Recording Performance: Up to 30 fps at 1080P, 720P, VGA for each channel Megapixel Recording: Supports megapixel cameras (up to 10-megapixel) Network Throughput: 400 Mbps File Format: AVI (QNAP codec is required for playback) Recording Enhancement: Real-time digital watermarking Local Display: Display Mode: 1, 4, 6, 8, 9, 10, 12 or 16-channel display mode, sequential display mode Hardware Decode: Full HD 1080P 300FPS Local Monitoring Enhancement: Full screen display, event notification, PTZ control, digital zoom Local Playback: Single view playback from local NVR server Search Mode for Local Playback: By date & time Playback Control: Play, pause, stop, reverse play, next/ previous video file, different speed control Local Playback