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QNAP TS-855X Specs, Pros and Cons

Last updated:

The quick verdict

  • Strengthsmax LAN speed 10 Gbps (top 2%), CPU cores 8 (top 3%)
  • Best forsmall offices sharing files

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

Spec ruler

Chart placing the QNAP TS-855X 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-855X lists 8 drive bays, 8 CPU cores, boost clock 2.8 GHz, and base RAM 8 GB in its official specs. Against 219 QNAP models, its strengths are 8 CPU cores (top 3%), base RAM 8 GB (top 23%), and max RAM 128 GB (top 6%), and nothing falls in the bottom 25%.

This page lays out the QNAP TS-855X from the 14 specs published on QNAP's official hardware specification pages. Drive bays: 8 bays (top 35% of 219). The TS-855X has 8 CPU cores (top 3% of 204). Boost clock comes in at 2.8 GHz (top 47% of 201). Base RAM: 8 GB (top 23% of 219). The TS-855X's max RAM is 128 GB (top 6% of 219). Max LAN speed comes in at 10 Gbps (top 2% of 219). LAN ports: 3 ports (bottom 48% of 219). The TS-855X has 2 M.2 slots (top 4% of 136). PCIe slots comes in at 2 slots (top 21% of 146). USB ports: 4 ports (top 35% of 219). The TS-855X's weight is 10 kg (bottom 36% of 212). Volume comes in at 21.1 L (bottom 31% of 217).

Key points

CPU coresStrength

  • 8 cores
  • top 3% of 204 QNAP models

8 cores for backups and transcodes at once

Base RAMStrength

  • 8 GB
  • top 23% of 219 QNAP models

8 GB out of the box for several apps

Max RAMStrength

  • 128 GB
  • top 6% of 219 QNAP models

Upgradable to 128 GB later

Key specs at a glance

Key specs at a glance
SpecTS-855X
Max LAN speed10 Gbpstop 2%
CPU cores8top 3%
M.2 slots2top 4%
Max RAM128 GBtop 6%
Warranty3 yrtop 7%
PCIe slots2top 21%
Show every spec
Full specifications
SpecTS-855X
Drive bays8top 35%
CPU cores8top 3%
Boost clock2.8 GHztop 47%
Base RAM8 GBtop 23%
Max RAM128 GBtop 6%
Max LAN speed10 Gbpstop 2%
LAN ports3bottom 48%
M.2 slots2top 4%
PCIe slots2top 21%
USB ports4top 35%
Weight10 kgbottom 35%
Volume21.1 Lbottom 31%
Operating power87 Wbottom 31%
Warranty3 yrtop 7%
Derived metrics
Metric (0–100)TS-855X
Performance percentile88.5
Lightness percentile34.1
Compactness percentile30.1
Small office fit100
10GbE video editing fit99
Low-power compact 24/7 fit0

The details

Performance and memory

  • Boost clock: 2.8 GHz (top 47%)

Storage and connections

  • Drive bays: 8 bays (top 35%)
  • Max LAN speed: 10 Gbps (top 2%)
  • LAN ports: 3 ports (bottom 48%)

Storage and connections

  • M.2 slots: 2 slots (top 4%)
  • PCIe slots: 2 slots (top 21%)
  • USB ports: 4 ports (top 35%)

Size, power and warranty

  • Weight: 10 kg (bottom 36%)
  • Volume: 21.1 L (bottom 31%)

Size, power and warranty

  • Operating power: 87 W (bottom 31%)
  • Warranty: 3 years (top 7%)

TS-855X vs the similar TVS-872X6 match, 3 more differ

  • Max RAM: 128 GB vs 64 GB
  • USB ports: 4 ports vs 5 ports
  • Weight: 10 kg vs 7.06 kg

TS-855X vs the similar TS-877XU-RP4 match, 5 more differ

  • CPU cores: 8 cores vs 6 cores
  • Boost clock: 2.8 GHz vs 3.9 GHz
  • Max RAM: 128 GB vs 64 GB

TS-855X vs the similar TS-H1655XEU-RP7 match, 4 more differ

  • Drive bays: 8 bays vs 12 bays
  • Max RAM: 128 GB vs 64 GB
  • M.2 slots: 2 slots vs 4 slots

Combined metrics

  • Expansion slots in total (M.2 plus PCIe): 4
  • Total built-in LAN bandwidth (sum of port speeds): 15 Gbps
  • Operating power per bay: 10.9 W

Combined metrics

  • Weight per bay: 1.26 kg
  • Memory headroom (max minus base): 120 GB

Use-case scores

  • Small-office file server: 100
  • 10GbE video editing: 99
  • Low-power compact 24/7 use: 0

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-855X?
10 Gbps.
What is the max RAM of the QNAP TS-855X?
128 GB.
How many drive bays does the QNAP TS-855X have?
8.
What is the operating power of the QNAP TS-855X?
87 W.
How many M.2 slots does the QNAP TS-855X have?
2.