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QNAP 4-BAY NAS Box
QNAP QNAP 4-BAY NAS Box

The 4-bay TS-451D2 provides high storage potential for home and small business users to store, share, and back up files. Business users can leverage its dual-core Intel processor to enable seamless multi-user on-premises/remote access to work files, while home users can enjoy a high-quality multimedia experience with both streaming and direct 4K HDMI 2.0 output. Cloud Storage Gateways allow you to leverage your existing cloud storage to deploy a hybrid-cloud solution, while a built-in App Center provides a wide range of applications to add additional functionality to the TS-451D2.

Our Price: $699.95


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  • 4 x 3.5"/2.5" SATA III Drive Bays
  • 2.0 GHz Intel Celeron J4025 Dual-Core
  • 4GB of DDR4 RAM
  • 2 x Gigabit Ethernet Ports
  • 4 x USB 3.2 Gen 1 | 1 x HDMI 2.0
  • RAID 0, 1, 5, 6, 10, JBOD, and Single
  • Data Transfer Speeds up to 432 MB/s
  • AES-NI Hardware Encryption Engine
  • 120mm Cooling Fan
  • QNAP QTS Operating System
CPU Intel® Celeron® J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz)
CPU Architecture 64-bit x86
Graphic Processors Intel® HD Graphics 600  
Floating Point Unit Yes  
Encryption Engine (AES-NI)  
Hardware-accelerated Transcoding Yes  
System Memory 4 GB SO-DIMM DDR4 (1 x 4 GB)  
Maximum Memory 8 GB (2 x 4GB)
Memory Slot 2 x SO-DIMM DDR4
For dual-DIMM configuration, you must use a pair of identical DDR4 modules.
Flash Memory 4GB (Dual boot OS protection)
Drive Bay 4 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD
Drive Compatibility 3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
Hot-swappable Yes  
SSD Cache Acceleration Support Yes  
Gigabit Ethernet Port (RJ45) 2
Jumbo Frame Yes  
USB 3.2 Gen 1 port 4
HDMI Output 1, HDMI 2.0 (up to 4096 x 2160 @ 60Hz)
Form Factor Tower
LED Indicators Power/Status, LAN, USB, HDD1-4
Buttons Power, USB copy, Reset
Dimensions (HxWxD) 6.51 × 6.3 × 8.64 inch
Weight (Net) 4.61 lbs
Weight (Gross) 6.66 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 External Power Adapter, 90W, AC 100-240 V
Fan 1 x 120mm, 12VDC
Sound Level 18.5 db(A)
System Warning Buzzer
Kensington Security Slot Yes  
Max. Number of Concurrent Connections (CIFS) 800
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