QNAP - QVP-21A (VS-2300) - 2-bay high-performance NVR for SMBs, SOHO, and home
The QVP-21A QVR Pro appliance is a tower-based network surveillance server that supports real-time video/audio monitoring, high-resolution recording, and playback from multiple IP cameras. Users can easily monitor cameras from different platforms (Windows®, Mac® and mobile devices), making it easier for businesses, offices, and home users to safeguard their property and possessions.

Supports thousands of cameras from over 150 brands.
Monitor and manage cameras from Windows®, Mac® and mobile devices.
Part number:
CPU Intel® J1900 quad-core 2.0 GHz processor (burst up to 2.42 GHz)
CPU Architecture 64-bit x86
System Memory 8 GB SO-DIMM DDR3L (2 x 4 GB)
Graphic Processors Intel® HD Graphics
Maximum Memory 8 GB (2 x 4GB)
Memory Slot 2 x SO-DIMM DDR3L
Flash Memory 5GB (Dual boot OS protection)
Max Local Display Live Cameras 12ch @ All 1080p,H.264, 30FPS
12ch @ All 720p,H.264, 30FPS
Max Local Display Playback Cameras 12
Max Client Concurrent Connection 6
Embedded Channel 4
Max Channel 12
H264 / 1920x1080 / 30FPS
Max Throughput 132 Mbps
Drive Bay 2 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD.
For the HDD compatibility list, please visit https://www.qnap.com/compatibility/
Drive Compatibility 3.5-inch bays:
3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
Gigabit Ethernet Port (RJ45) 2
USB 3.2 Gen 1 port 3
HDMI Output 1, HDMI 1.4b (up to 3840 x 2160 @ 30Hz)
Form Factor Tower
LED Indicators Power/Status, LAN, USB, HDD1-2
Buttons Power, USB copy, Reset
Dimensions (HxWxD) 5.91 × 4.02 × 8.5 inch
Weight (Net) 3.24 lbs
Weight (Gross) 6.44 lbs
Operating temperature 0 - 40 °C (32°F - 104°F)
Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit 90W adapter, 100-240V
Power Consumption: HDD Sleep Mode 10.14 W
Power Consumption: Operating Mode, Typical 16.34 W
Power Off (Wake-On-LAN/WOL) 0.74
Fan 1 x 70mm, 12VDC
Sound Level 19.4 db(A)
System Warning Buzzer
Tray Locker Yes
File System: Internal Hard Drive EXT4
RAID Recovery  
Online RAID Capacity Expansion  
RAID 1  
RAID 0  
Single Disk  
Wake on LAN (WOL)  
Schedule Power On/Off (15 settings)  
Telnet & SSH logins (Admin only)  
Syslog Server & Client  
Language English, German, French, Italian, Spanish, Polish, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Korean, Dutch, Czech, Traditional Chinese, Simplified Chinese, Turkish, Hungarian, Romanian, Thai, Portuguese/Brazil, Greek