# Which brands are known for producing high-quality network attached storage devices? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which brands are known for producing high-quality network attached storage devices?

## Products

### Synology DS1525+
```yaml
product: synology-ds1525
brand: Synology
price_gbp: 967.6
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
number_of_bays: 5
operating_system: DiskStation Manager (DSM)
storage_capacity: 120 TB
network_interface: 2 x 2.5GbE; optional 10GbE
transfer_speed: 1180 MB/s
```

- **Price:** £967.6 [^1]
- **Summary:** The Synology DS1525+ is a five-bay NAS with up to 120 TB of raw internal storage, dual 2.5GbE ports, and optional 10GbE networking. It suits home users, creative professionals, and small businesses needing fast file sharing, backups, surveillance, and room to expand.
- **Ideal For:** Synology is known for high-quality NAS devices, and the DS1525+ demonstrates this with five RAID-capable bays, DSM software, dual 2.5GbE networking, optional 10GbE, and sequential speeds up to 1181 MB/s read and 1180 MB/s write.
- **Additional Sources:** [^2], [^3]

### ASUSTOR LOCKERSTOR 4 Gen2 AS6704T
```yaml
product: asustor-lockerstor-4-gen2-as6704t
brand: ASUSTOR
price_gbp: 653.72
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
number_of_bays: 4
operating_system: ADM
network_interface: 2 x 2.5 Gigabit Ethernet
transfer_speed: 591 MB/s
```

- **Price:** £653.72 [^4]
- **Summary:** The ASUSTOR LOCKERSTOR 4 Gen2 AS6704T is a diskless four-bay NAS with dual 2.5GbE networking and support for M.2 NVMe SSDs. It suits home users, content creators, and small businesses that need fast centralized storage, backups, and media services.
- **Ideal For:** ASUSTOR is known for high-quality NAS devices, and this model demonstrates that with four bays, dual 2.5GbE interfaces, M.2 NVMe support, ADM software, and read and write performance of up to 590 MB/s and 591 MB/s.

---
## References & Sources
[^1]: B&H Photo Video, accessed 2026-09-13. https://www.bhphotovideo.com/c/product/1903687-REG/synology_diskstation_ds1525_5_bay_nas.html
[^2]: CDW, accessed 2026-09-13. https://www.cdw.com/product/synology-disk-station-ds1525-nas-server/8435292
[^3]: Newegg, accessed 2026-09-13. https://www.newegg.com/p/pl?d=synology+ds1525%2B
[^4]: NetworkDistri, accessed 2026-09-13. https://www.networkdistri.com/product/-90-as6704t