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QNAP TS-451D2 Specs, Pros and Cons

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The quick verdict

  • Strengthsweight 2.09 kg (top 14%), volume 5.8 L (top 17%)
  • WeaknessesCPU cores 2 (bottom 9%), max LAN speed 1 Gbps (bottom 22%)

Rankings and scores come from the specs alone and are not affected by affiliate commissions.

Spec ruler

Chart placing the QNAP TS-451D2 on a 0 to 100 ruler for each spec within the category
Longer bars mean a better value within the category (top %). The numbers are the actual specs.

In short

Bottom line. The QNAP TS-451D2 lists 4 drive bays, 2 CPU cores, boost clock 2.9 GHz, and base RAM 4 GB in its official specs. Against 219 QNAP models, its strengths are weight 2.09 kg (top 14%) and volume 5.8 L (top 17%), and its weak spots are 2 CPU cores (bottom 9%), max RAM 8 GB (bottom 25%), and max LAN speed 1 Gbps (bottom 22%).

This page lays out the QNAP TS-451D2 from the 11 specs published on QNAP's official hardware specification pages. Drive bays: 4 bays (bottom 35% of 219). The TS-451D2 has 2 CPU cores (bottom 9% of 204). Boost clock comes in at 2.9 GHz (top 39% of 201). Base RAM: 4 GB (bottom 47% of 219). The TS-451D2's max RAM is 8 GB (bottom 25% of 219). Max LAN speed comes in at 1 Gbps (bottom 22% of 219). LAN ports: 2 ports (bottom 38% of 219). The TS-451D2 has 4 USB ports (top 35% of 219). Weight comes in at 2.09 kg (top 14% of 212). Volume: 5.8 L (top 17% of 217). The TS-451D2's warranty is 2 years (bottom 35% of 214). Strengths (top 25% of 219 QNAP models): weight 2.09 kg, top 14%; volume 5.8 L, top 17%.

Key points

WeightStrength

  • 2.09 kg
  • top 14% of 212 QNAP models

VolumeStrength

  • 5.8 L
  • top 17% of 217 QNAP models

Key specs at a glance

Key specs at a glance
SpecTS-451D2
Weight2.09 kgtop 14%
Volume5.8 Ltop 17%
USB ports4top 35%
Boost clock2.9 GHztop 39%
Base RAM4 GBbottom 47%
LAN ports2bottom 38%
Show every spec
Full specifications
SpecTS-451D2
Drive bays4bottom 35%
CPU cores2bottom 9%
Boost clock2.9 GHztop 39%
Base RAM4 GBbottom 47%
Max RAM8 GBbottom 25%
Max LAN speed1 Gbpsbottom 22%
LAN ports2bottom 38%
USB ports4top 35%
Weight2.09 kgtop 14%
Volume5.8 Ltop 17%
Warranty2 yrbottom 35%
Derived metrics
Metric (0–100)TS-451D2
Performance percentile6.8
Lightness percentile86.3
Compactness percentile83.8
Small office fit40
10GbE video editing fit1

The details

Weak spots (bottom 25%)

  • 2 CPU cores: bottom 9%
  • Max RAM 8 GB: bottom 25%
  • Max LAN speed 1 Gbps: bottom 22%

Performance and memory

  • Boost clock: 2.9 GHz (top 39%)
  • Base RAM: 4 GB (bottom 47%)

Storage and connections

  • Drive bays: 4 bays (bottom 35%)
  • LAN ports: 2 ports (bottom 38%)
  • USB ports: 4 ports (top 35%)

Size, power and warranty

  • Warranty: 2 years (bottom 35%)

TS-451D2 vs the similar TS-453BMINI6 match, 2 more differ

  • CPU cores: 2 cores vs 4 cores
  • Boost clock: 2.9 GHz vs 2.3 GHz
  • USB ports: 4 ports vs 5 ports

TS-451D2 vs the similar TS-453B6 match, 2 more differ

  • CPU cores: 2 cores vs 4 cores
  • Boost clock: 2.9 GHz vs 2.3 GHz
  • USB ports: 4 ports vs 5 ports

TS-451D2 vs the similar TS-3515 match, 3 more differ

  • Drive bays: 4 bays vs 3 bays
  • Boost clock: 2.9 GHz vs 2.58 GHz
  • LAN ports: 2 ports vs 1 port

Combined metrics

  • Total built-in LAN bandwidth (sum of port speeds): 2 Gbps
  • Weight per bay: 0.52 kg
  • Memory headroom (max minus base): 4 GB

Use-case scores

  • Small-office file server: 40
  • 10GbE video editing: 1

Not in the official specs

  • M.2 slots, PCIe slots, and operating power

Use-case scores are Specotomy's own index, computed by fixed rules from official manufacturer specs; they are not manufacturer scores.

FAQ

What is the max LAN speed of the QNAP TS-451D2?
1 Gbps.
What is the max RAM of the QNAP TS-451D2?
8 GB.
How many drive bays does the QNAP TS-451D2 have?
4.
What is the weight of the QNAP TS-451D2?
2.09 kg.