QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder (No HDD)

QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder (No HDD)

QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder (No HDD)

B&H # QNVS8248PROU MFR # VS-8248-PRO+-US
QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder (No HDD)

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QNAP VS-8248-PRO+-US overview

  • 1Description

The QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder is an SMB-grade, tower-based network surveillance server that supports real-time video/audio monitoring, megapixel recording (up to 10MP), and playback from multiple IP cameras. Powered by a Dual-Core Intel Core i3 processor and 8GB of DDR3 memory, it is capable of recording videos from up to 48 IP cameras and offers up to 450 Mb/s throughput to ensure stable recording of multiple megapixel IP cameras.

Even without a PC, the NVR can be configured to perform monitoring tasks with local display by connecting a USB mouse, USB keyboard, and HDMI monitor to deliver lag-free live video monitoring in full HD (1920 x 1080) resolution. Using iOS and Android devices, the Vmobile app provides camera live-view, PTZ control, instant event notifications, video snapshot, video playback, and searching for videos by date and time. Another mobile app, Vcam, allows you to turn your mobile device into a network camera and directly save recordings to your VioStor NVR for portable surveillance options.

The QSCM Lite is a free app provided by QVR that allows you to deploy up to 16 QNAP NVRs and 256 cameras to conduct central monitoring, playback, and management. With no extra server hardware required, QSCM Lite can turn the NVR into a CMS server. QSCM Lite can be freely downloaded from the integrated NVR App Center. The QVR 5.1 software offers a multi-window design that allows concurrent multitasking and enables administrators to switch between tasks.

QVR 5.1 provides an intuitive playback interface for distinguishing between regular and alarm recordings in the timeline bar.  You can also enable IVA (Intelligent Video Analytics) to quickly search videos corresponding to particular modes (includes motion detection, foreign/missing object, out of focus, and camera occlusion) to screen for critical recordings.

The QVR 5.1 software provides flexible options to set up IP camera recording, including manual recording and scheduled recording. You can set up the system to only record when motion is detected or other events occur. The smart recording function can also automatically switch the recording detail to a higher resolution when alarms are triggered.

You can directly configure IP camera recording schedules when needed without leaving the Live-view page and maintain a seamless monitoring so you won't miss any suspicious events. You can also visualize IP camera deployment with the e-map function. Just upload the pictures of the monitored locations and drag and drop the IP camera icons to the right place on the e-map for monitoring your surveillance deployment.

With the QVR system, users can manage and monitor multiple IP cameras on a real-time basis using web browsers, and attain the first-hand status of monitored corners. You can directly adjust the PTZ (Pan/Tilt/Zoom) functions of supported cameras for monitoring every desired corner and detail. Auto-cruising is also supported to allow you to define preset positions for PTZ cameras to automatically adjust their monitoring angles to preset positions by the time interval.

The transcoding capabilities of the NVR enables users to watch videos stored in centralized locations via the Internet when they have low-bandwidth connections. This feature adapts to bandwidth limits and/or devices that lack the hardware or codecs to play video files by converting a video file to a lower resolution before transferring it across the internet. The original high definition video is still retained without any changes being made to it, balancing the whole surveillance system for local recordings and remote playback. By installing the Storage Expansion app on a QNAP Turbo NAS, you can connect the VioStor NVR with the Turbo NAS via a network to flexibly enlarge the total storage capacity of the VioStor NVR. If the expanded storage is not enough, QNAP REXP expansion enclosures can be used to expand the storage space on the connected Turbo NAS for increasing storage capacity.

The NVR supports multiple port-trunking modes, enabling IT administrators to set up link aggregation to increase total data transmission capability. Failover is also supported to ensure continuous system operation. The supported port-trunking modes are Balance-rr (Round-Robin), Active Backup, Balance XOR, Broadcast, IEEE 802.3ad, Balance-tlb (Adaptive Transmit Load Balancing), and Balance-alb (Adaptive Load Balancing).

The NVR supports comprehensive RAID configurations and hot-swap functionality for replacing hard drives without interrupting system operation. RAID recovery technology also assists if any healthy drives are accidentally removed from a degraded RAID volume. The system can be recovered to degraded mode by reinserting the wrongly removed hard drives so the data can still be accessed. The Global Hot Spare function also allows a drive to automatically replace a failed drive in a RAID volume, preventing data from being lost.

Note: The standard system is shipped without hard drives. Actual performance may vary depending on the network environment.

Full HD Local Display

Local Monitoring Control: Dewarping function for fisheye cameras and Panomorph lens, Manual recording, (two-way) audio, PTZ control (including optical zoom, focus control, and preset position control), and digital zoom
Joystick support for PTZ and preset position control
Local Playback Control: Dewarping function for fisheye cameras and Panomorph lens, play, pause, rewind, fast forward, slow motion, frame by frame search, audio, and digital zoom
Recordings Export: Export multiple recordings to external USB storage as standard AVI files, optimized QNAP AVI files, and QNAP encrypted AVI files
Local Configuration: Can modify administration password, network settings, time settings, disk volume configuration, and camera settings

Recording Modes

Continuous/scheduled/manual recording
Alarm recording by multiple events
Pre-alarm (up to 300 sec) and post-alarm (up to 300 sec) recording
Round-the-clock recording and smart recording when a user-defined stream is supported on the camera model
Edge recording
Auto snapshot

Event Management

Motion detection, alarm input, connection failure, recording failure, and user-defined events
Video recording, email alert, SMS alert, buzzer, PTZ camera control, alarm output, and user-defined actions

Backup and Expansion

Copy recordings from the local disk volume to an external storage device
Press the "One Touch Video Backup" button to backup recordings from an external storage to an USB storage
Remote Replication: Schedule video data backup to a NAS on the local network
Storage Expansion: Connect the VioStor NVR to a Turbo NAS via network to enlarge the total storage capacity of the VioStor NVR
Cloud Backup: Easily upload the data from the NVR to Amazon S3 or download the data from Amazon S3 to the NVR

Easy Configuration and Management

QVR Desktop

Multi-window and multitasking
Intelligent desktop
Main menu, smart dashboard, and drag-and-drop icons

File Station

Access files using web browsers
Securely share files by URL
Upload large files


Unique host name for VioStor NVR
Automatic port forwarding on a UPnP router
Cloud backup
App Center: Download numerous free on-demand apps
Flexibly expand the number of channels to meet your demands by purchasing additional licenses

Security Management

User Privilege Management: Different user types and rights can be assigned to different QVR users
Network Access Protection: Specify the connections to be allowed and denied to access the VioStor NVR
Auto Logoff: Automatic user logoff from idling on configuration pages
Log System: System event logs, system connection logs, and online users
Digital Watermarking: Can be used to authenticate videos and snapshots


QNAP QFinder: The client application to discovery and quick setup of the VioStor NVR
QNAP QVR Client for Windows: The client application used to remotely access QNAP NVR servers for performing video monitoring and playback functions on client PC
Watermark proof (Installed with QVR Client): Check if the exported videos and snapshots were modified.
QNAP QVR Client for Mac: The client application used to remotely access QNAP NVR servers for performing video monitoring and playback functions on Mac
Please note that multi-server monitoring and fisheye dewarping functions and QSCM Lite App are not supported.
QNAP Codec: The video codec to play the recording files on Windows Media Player (Windows PC, desktop mode, 32-bit)
UPC: 885022012442
In the Box
QNAP VioStor VS-8248-PRO+ 48-Channel 8-Bay Network Video Recorder (No HDD)
  • Power Cord
  • Adapter
  • 2 x Ethernet Cables
  • 64 x Flat Head Screws (for 2.5" and 3.5" HDDs)
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    QNAP VS-8248-PRO+-US specs

    Maximum HDDs 8
    Number of Channels 48
    Recording Performance Up to 30 fps at 1080p, 720p, VGA for each channel
    Maximum Recording Throughput 450 Mb/s
    QVR Desktop
    Multi-Tasking Multiple tasks run on QVR desktop
    Applications Default Applications: Control Panel (for system configuration), Surveillance Settings, File Station, myQNAPcloud, Backup and Expansion, App Center
    Local Display Specs
    Maximum Resolution Supported HW Decode Supported per Channel: Full HD (1920 x 1080) per channel (H.264)
    Local Display Performance: Full HD 1080P, 500 fps
    Display Modes Local Monitoring: Multichannel, sequential and full screen display modes
    Local Playback: Multichannel and full screen display modes
    Channels Maximum Channels Supported per Page
    Local Monitoring: Up to 36 channels per page
    Local Playback: Up to 4 channels per page
    Alert Onscreen event alert
    Joystick Support for PTZ and preset position control
    Search Modes By date and time, timeline, and event
    Remote Monitoring Specs
    Multi-server Monitoring QVR Client: Supports maximum 256 channels (firmware version 5.1.1 or later)
    Display Mode Multichannel, sequential and full screen display modes
    Dual display mode
    Video Channels Supported Up to 64 channels per page
    E-Map Set up multi-layer e-maps for multiple NVRs
    Options to see the ongoing event status on QVR monitoring page (for dual display mode) or new window
    Alert Onscreen event alert
    Control Buttons Manual recording, video snapshot, (two-way) audio, dewarping function for fisheye cameras and Panomorph lens, PTZ mode (including click & go, PTZ control, and auto cruising by preset position), preset position control, digital zoom, instant playback, same-screen IP camera configurations, camera information
    Options Video window highlight when an event is triggered
    Joystick Support for PTZ and preset position control
    Remote Playback
    Playback Multichannel Playback: Multichannel, sequential display modes
    Video Channels Supported Up to 16 channels per page
    Search Modes By date and time, timeline, event, and intelligent video analytics (IVA)
    Alert Onscreen event alerts
    Speed Control Playback and Speed Control with Shuttle Bar: Play, pause, rewind, fast forward, slow motion, frame-by-frame search
    Control Buttons Audio, low bandwidth mode, video snapshot, IVA settings, dewarping function for fisheye cameras and Panomorph lens, PTZ mode (including click & go, PTZ control, and auto cruising by preset position), digital zoom, averagely time-divided playback, camera information
    Intelligent Video Analytics Motion detection, missing object, foreign object, out of focus, and camera occlusion
    Control Drag an area on the video window to zoom in to see details
    Export Export multiple recordings to a client PC or NVR as standard AVI/MP4 file, different exporting resolutions supported
    Options Add a digital watermark to exported recordings
    QNAP Surveillance Client for Mac
    Mac QVR Client for Mac: Free download from the QNAP Download Center and Mac App Store
    Display Modes Monitoring: Multichannel, sequential, and full-screen display modes
    Playback: Single-channel and full-screen display modes
    Supported Channels/Tracks Maximum Channel Supported per Page: Local monitoring: Up to 16 channels per page
    Local playback: Single channel per page
    Alerts On-screen event alert
    Monitoring Monitoring Control: Audio, PTZ control (including optical zoom, focus control, and preset position control), digital zoom
    Search Modes By date and time, timeline, and event
    Playback Control Play, pause, rewind, different speed control, audio, digital zoom
    Export Recordings Export: Export multiple recordings to Mac
    Configuration Open an additional browser window for configuration
    Mobile Surveillance
    Mobile App Control Vmobile: Free download from the App Center (iOS) and Google Play (Android)
    Search NVRs on the LAN can be easily searched
    Display Modes Mobile Monitoring: Multichannel, sequential display mode
    Mobile Playback: Single-channel display mode
    Monitoring Mobile Monitoring Control: PTZ control, digital zoom, pause, snapshot, stream selection, image share (ex. email, Facebook)
    Event Notification Event notifications will be sent from multiple NVRs
    Playback Mobile Playback Control: Digital zoom, snapshot, play, pause, fast forward, go to previous file, go to next file
    Audio Yes
    Supported Models IP cameras
    Generic cameras
    Vcam App to turn your mobile phone into an IP camera
    Video Compression H.264/MPEG-4/MJPEG/MxPEG (depending on the camera models)
    Megapixel Recording Supports megapixel cameras (up to 40 MP)
    File Format AVI (QNAP codec is required for playback)
    Recording Enhancements Real-time digital watermarking
    Export Download recordings via the QVR File Station, FTP, SMB/CIFS Recordings export on local playback and remote playback (Windows and Mac)
    Disk Management
    RAID RAID 0, RAID 1, RAID 5, RAID 5+ Hot spare, RAID 6, RAID 6+ Hot spare, RAID 10, RAID 10+ Hot spare
    Single, JBOD/Linear
    RAID Features Online RAID Capacity Expansion, Online RAID Level Migration
    Utility HDD S.M.A.R.T, bad blocks scan
    Operating System Linux-embedded system, free from PC crash and virus attack
    Recovery Intelligent Automatic System Startup when power recovery
    UPS APC/CyberPower/Epson/MGE/YEC
    Network Services
    Protocol HTTP, HTTPS, TCP/IP, DHCP, Static IP, DNS, DDNS, UPnP, FTP, NTP, and SMTP
    DHCP Server Yes
    Gigabit LAN Ports Failover, load-balancing, multi-IP settings
    File Services Limits Web, FTP, SMB/CIFS
    Language Support Czech/Danish/Dutch/English/French/Finnish/German/Hungarian/Italian/Japanese/Korean/Norwegian/Polish/Portuguese/Russian/Spanish/Swedish/Simplified Chinese/Traditional Chinese/Turkish/Greek/Romanian/Thai
    Client PC Requirements
    CPU MJPEG format (up to 48 channels): Quad core CPU 2.33 GHz or above
    MPEG-4/H.264/MxPEG format (up to 48 channels): Core i7 CPU 2.8 GHz or above
    For higher surveillance performance, please select more advanced PC models.
    Memory 4 GB or above
    Operating System Microsoft Windows 7/8 or Mac OS X 10.7.x, 10.8.x, 10.9.x, 10.10.x
    Web Browser Microsoft Internet Explorer 10/11 (Windows PC, desktop mode, 32-bit)
    Google Chrome 38.0.2125.104 m (Windows PC)
    Mozilla Firefox 33.0 (Windows PC)
    Network Interface 10/100/1000 Mb/s
    Display Resolution 1280 x 800 pixels or higher for better user experience
    Client QVR Client for Windows
    QVR Client for Mac
    Switch A gigabit switch is highly recommended
    Processor Dual-core Intel Core i3-4150 3.5 GHz
    Flash Memory 512 MB DOM
    HDD Capacity 8 x 3.5" SATA 6 Gb/s, SATA 3 Gb/s hard drive
    Note: The standard system is shipped without hard drives
    Tray 8 x Hot-swappable and lockable trays
    LAN Port 4 x Gigabit RJ45 Ethernet ports
    LED Indicators Status, LAN, USB, hard drive LEDs
    USB 3 x USB 3.0 ports (front: 1, rear: 2)
    2 x USB 2.0 ports (rear)
    Front: For USB storage device (One touch auto video backup)
    Rear: For UPS device
    Buttons System: Power button, one touch auto video backup button, reset button
    LCD Panel Mono-LCD display with backlight
    Enter button, Select button for configuration
    Alarm Buzzer System warning
    Form Factor Tower
    Power Consumption 83.81 W Write/Read (with 8 x WD WD20EFRX hard drive installed)
    Security K-Lock security slot for theft prevention
    Video Output 1 x HDMI
    Fan 2 x quiet cooling fan (4.72" / 12 cm, 12 VDC)
    Sound Level Sound Pressure (LpAm): 23.1 dB(A)
    Certifications CE, FCC, VCCI, BSMI, C-Tick
    Power Supply Input: 100 to 240 VAC, 50/60 Hz
    Output: 350 W
    Operating Environment Temperature: 32 to 104°F / 0 to 40°C
    Humidity: 5 to 95% RH non-condensing
    Wet Bulb: 80.6°F / 27°C
    Dimensions (H x W x D) 7.29 x 11.74 x 9.27" / 185.2 x 298.2 x 235.4 mm
    Weight 17.26 lb / 7.83 kg

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