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QNAP TS-855EU Specs, Pros and Cons
The quick verdict
- StrengthsCPU cores 8 (top 3%), M.2 slots 2 (top 4%)
- Best forsmall offices sharing files
Rankings and scores come from the specs alone and are not affected by affiliate commissions.
Spec ruler
In short
Bottom line. The QNAP TS-855EU 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 64 GB (top 19%), and nothing falls in the bottom 25%.
This page lays out the QNAP TS-855EU from the 14 specs published on QNAP's official hardware specification pages. Drive bays: 8 bays (top 35% of 219). The TS-855EU 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-855EU's max RAM is 64 GB (top 19% of 219). Max LAN speed comes in at 2.5 Gbps (bottom 48% of 219). LAN ports: 2 ports (bottom 38% of 219). The TS-855EU 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-855EU's weight is 8.1 kg (bottom 50% of 212). Volume comes in at 11.4 L (top 46% 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
- 64 GB
- top 19% of 219 QNAP models
Upgradable to 64 GB later
Key specs at a glance
| Spec | TS-855EU |
|---|---|
| CPU cores | 8top 3% |
| M.2 slots | 2top 4% |
| Warranty | 3 yrtop 7% |
| Max RAM | 64 GBtop 19% |
| PCIe slots | 2top 21% |
| Base RAM | 8 GBtop 23% |
Show every spec
| Spec | TS-855EU |
|---|---|
| Drive bays | 8top 35% |
| CPU cores | 8top 3% |
| Boost clock | 2.8 GHztop 47% |
| Base RAM | 8 GBtop 23% |
| Max RAM | 64 GBtop 19% |
| Max LAN speed | 2.5 Gbpsbottom 48% |
| LAN ports | 2bottom 38% |
| M.2 slots | 2top 4% |
| PCIe slots | 2top 21% |
| USB ports | 4top 35% |
| Weight | 8.1 kgbottom 50% |
| Volume | 11.4 Ltop 46% |
| Operating power | 79.1 Wbottom 35% |
| Warranty | 3 yrtop 7% |
| Metric (0–100) | TS-855EU |
|---|---|
| Performance percentile | 79.4 |
| Lightness percentile | 48.8 |
| Compactness percentile | 53 |
| Home media server fit | 35 |
| Small office fit | 100 |
| 10GbE video editing fit | 52 |
| Low-power compact 24/7 fit | 0 |
The details
Performance and memory
- Boost clock: 2.8 GHz (top 47%)
Storage and connections
- Drive bays: 8 bays (top 35%)
- Max LAN speed: 2.5 Gbps (bottom 48%)
- LAN ports: 2 ports (bottom 38%)
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: 8.1 kg (bottom 50%)
- Volume: 11.4 L (top 46%)
Size, power and warranty
- Operating power: 79.1 W (bottom 35%)
- Warranty: 3 years (top 7%)
TS-855EU vs the similar TVS-6759 match, 2 more differ
- Drive bays: 8 bays vs 6 bays
- Boost clock: 2.8 GHz vs 2.5 GHz
- Weight: 8.1 kg vs 7 kg
TS-855EU vs the similar TS-873A9 match, 2 more differ
- CPU cores: 8 cores vs 4 cores
- Boost clock: 2.8 GHz vs 2.2 GHz
- Weight: 8.1 kg vs 7.4 kg
TS-855EU vs the similar TS-673A8 match, 3 more differ
- Drive bays: 8 bays vs 6 bays
- CPU cores: 8 cores vs 4 cores
- Boost clock: 2.8 GHz vs 2.2 GHz
Combined metrics
- Expansion slots in total (M.2 plus PCIe): 4
- Total built-in LAN bandwidth (sum of port speeds): 5 Gbps
- Operating power per bay: 9.89 W
Combined metrics
- Weight per bay: 1.01 kg
- Memory headroom (max minus base): 56 GB
Use-case scores
- Small-office file server: 100
- 10GbE video editing: 52
Use-case scores
- Home media server: 35
- Low-power compact 24/7 use: 0
Variant TS-855EU-RP
- matches the TS-855EU on drive bays, CPU cores, boost clock, and 9 more but differs on weight (9.47 kg vs 8.1 kg) and operating power (78.7 W vs 79.1 W).
- Where values differ, this comparison does not carry over to the TS-855EU-RP.
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-855EU?
- 2.5 Gbps.
- What is the max RAM of the QNAP TS-855EU?
- 64 GB.
- How many drive bays does the QNAP TS-855EU have?
- 8.
- What is the operating power of the QNAP TS-855EU?
- 79.1 W.
- How many M.2 slots does the QNAP TS-855EU have?
- 2.