QNAP TS-451+ 4-Bay NAS

Features:
Centralize your file storage, sharing and backup with excellent performance
Run multiple Windows, Linux, UNIX and Android based virtual machines with the Virtualization Station
Operate multiple isolated Linux systems as well as download containerized apps with Container Station
Enjoy the best audio-visual experience with HDMI output and the free remote control
Transcode Full HD videos on-the-fly or offline
Stream multimedia files via DLNA, AirPlay, Chromecast and Bluetooth with multi-zone multimedia control
Quickly find specific files by real-time, natural search with Osirch
Scale up to 12 drives with QNAP UX-800P expansion enclosure

Specifications:
CPU: Quad-core Intel Celeron 2.0GHz (burst up to 2.42GHz)
Floating Point Unit: V
GPU: Intel HD Graphics
Hardware-Accelerated Transcoding: V
Memory: 2GB DDR3L RAM (2 x 1GB)
Flash Memory: 512MB
Drive: 4 x 2.5" or 3.5" SATA 6Gbps, 3Gbps HDD or SSD, hot swappable trays
Expansion Unit: Max. 1 (UX-800P, UX-500P)
Gigabit LAN Ports: 2
USB: 2x USB3.0 (Front 1, Rear 1)/ 2x USB2.0 (Rear)
IR Receiver: Yes (QNAP RM-IR002 remote control)
HDMI: 1
LED Indicators: Power/Status, LAN, USB, HDD 1-4
Buttons: Power, Reset, USB Auto Copy
Alarm Buzzer: System warning
Form Factor: Tower
Dimensions: 169(H) x 160(W) x 219(D) mm
System Fan: 1x 12cm, 12V DC
Kensington Security Slot: 1
Power Supply: External Power Adapter, 90W, 100-240V

Power consumption (W):
S3 Sleep: 0.57
HDD standby: 15.78
In operation (typical): 33.38

Sound Level: 0 - 40 C
Humidity: 5 - 95% RH non-condensing, wet bulb: 27 C

Operating system: QTS 4.3 (embedded Linux)

Supported Client Operating Systems:
Apple Mac OS 10.7 or later
Linux and UNIX
Microsoft Windows 7, 8, and 10
Microsoft Windows Server 2003, 2008 R2, 2012, 2012 R2 and 2016