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QNAP TS-431KX Specs, Pros and Cons

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The quick verdict

  • Strengthsmax LAN speed 10 Gbps (top 2%), operating power 26.7 W (top 16%)
  • Weaknessesbase RAM 2 GB (bottom 14%), boost clock 1.7 GHz (bottom 19%)
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Spec ruler

Chart placing the QNAP TS-431KX 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-431KX lists 4 drive bays, 4 CPU cores, boost clock 1.7 GHz, and base RAM 2 GB in its official specs. Against 219 QNAP models, its strengths are 4 CPU cores (top 22%), max LAN speed 10 Gbps (top 2%), and weight 3.47 kg (top 23%), and its weak spots are boost clock 1.7 GHz (bottom 19%), base RAM 2 GB (bottom 14%), and max RAM 8 GB (bottom 25%).

This page lays out the QNAP TS-431KX from the 12 specs published on QNAP's official hardware specification pages. Drive bays: 4 bays (bottom 35% of 219). The TS-431KX has 4 CPU cores (top 22% of 204). Boost clock comes in at 1.7 GHz (bottom 19% of 201). Base RAM: 2 GB (bottom 14% of 219). The TS-431KX's max RAM is 8 GB (bottom 25% of 219). Max LAN speed comes in at 10 Gbps (top 2% of 219). LAN ports: 3 ports (bottom 48% of 219). The TS-431KX has 3 USB ports (bottom 27% of 219). Weight comes in at 3.47 kg (top 23% of 212). Volume: 5.83 L (top 17% of 217). The TS-431KX's operating power is 26.7 W (top 16% of 208). Warranty comes in at 2 years (bottom 35% of 214).

Key points

CPU coresStrength

  • 4 cores
  • top 22% of 204 QNAP models

4 cores for backups and transcodes at once

Max LAN speedStrength

  • 10 Gbps
  • top 2% of 219 QNAP models

100 GB copy in about 80 s (theoretical)

WeightStrength

  • 3.47 kg
  • top 23% of 212 QNAP models

Key specs at a glance

Key specs at a glance
SpecTS-431KX
Max LAN speed10 Gbpstop 2%
Operating power26.7 Wtop 16%
Volume5.83 Ltop 17%
CPU cores4top 22%
Weight3.47 kgtop 23%
LAN ports3bottom 48%
Show every spec
Full specifications
SpecTS-431KX
Drive bays4bottom 35%
CPU cores4top 22%
Boost clock1.7 GHzbottom 19%
Base RAM2 GBbottom 14%
Max RAM8 GBbottom 25%
Max LAN speed10 Gbpstop 2%
LAN ports3bottom 48%
USB ports3bottom 27%
Weight3.47 kgtop 23%
Volume5.83 Ltop 17%
Operating power26.7 Wtop 16%
Warranty2 yrbottom 35%
Derived metrics
Metric (0–100)TS-431KX
Performance percentile33.3
Lightness percentile77.5
Compactness percentile82.2
Small office fit60
10GbE video editing fit52
Low-power compact 24/7 fit67

The details

Weak spots (bottom 25%)

  • Boost clock 1.7 GHz: bottom 19%
  • Base RAM 2 GB: bottom 14%
  • Max RAM 8 GB: bottom 25%

Storage and connections

  • Drive bays: 4 bays (bottom 35%)
  • LAN ports: 3 ports (bottom 48%)
  • USB ports: 3 ports (bottom 27%)

Size, power and warranty

  • Volume: 5.83 L (top 17%)
  • Operating power: 26.7 W (top 16%)
  • Warranty: 2 years (bottom 35%)

TS-431KX vs the similar TS-431X39 match

  • Base RAM: 2 GB vs 4 GB
  • Weight: 3.47 kg vs 3.19 kg

TS-431KX vs the similar TS-431X9 match

  • CPU cores: 4 cores vs 2 cores
  • Weight: 3.47 kg vs 2.01 kg
  • Volume: 5.83 L vs 5.92 L

TS-431KX vs the similar TS-431XEU7 match, 2 more differ

  • USB ports: 3 ports vs 4 ports
  • Weight: 3.47 kg vs 5 kg
  • Volume: 5.83 L vs 5.42 L

Combined metrics

  • Total built-in LAN bandwidth (sum of port speeds): 12 Gbps
  • Operating power per bay: 6.68 W

Combined metrics

  • Weight per bay: 0.87 kg
  • Memory headroom (max minus base): 6 GB

Use-case scores

  • Low-power compact 24/7 use: 67
  • Small-office file server: 60
  • 10GbE video editing: 52

Variant TS-431X2

  • matches the TS-431KX on drive bays, CPU cores, boost clock, and 6 more but differs on weight (2.01 kg vs 3.47 kg), volume (5.92 L vs 5.83 L), and operating power (26.2 W vs 26.7 W).
  • Where values differ, this comparison does not carry over to the TS-431X2.

Not in the official specs

  • M.2 slots and PCIe slots

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-431KX?
10 Gbps.
What is the max RAM of the QNAP TS-431KX?
8 GB.
How many drive bays does the QNAP TS-431KX have?
4.
What is the operating power of the QNAP TS-431KX?
26.7 W.
What is the weight of the QNAP TS-431KX?
3.47 kg.