# Which NAS devices offer the best value for money under £500? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which NAS devices offer the best value for money under £500?

## Products

### Synology DS420+
```yaml
product: synology-ds420
brand: Synology
price_gbp: 354.66
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
raid_support: Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
number_of_bays: 4
transfer_speed: 226 MB/s read, 225 MB/s write
storage_capacity: 64TB
power_consumption: 28.25W access, 6.10W HDD hibernation
expandable_storage: false
```

- **Price:** £354.66 [^1]
- **Summary:** The Synology DS420+ is a four-bay NAS enclosure supporting up to 64TB of internal storage, dual Gigabit Ethernet, and M.2 NVMe SSD caching. It suits home users, enthusiasts, and small businesses needing centralized file storage, backups, media streaming, and flexible RAID protection.
- **Ideal For:** The DS420+ can offer good value under £500 because its four bays support up to 64TB, it includes dual Gigabit Ethernet and M.2 NVMe caching, and it supports RAID 5, RAID 6, RAID 10, and Synology Hybrid RAID.

### TerraMaster F2-221
```yaml
product: terramaster-f2-221
brand: TerraMaster
price_gbp: 191.31
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
raid_support: Single, JBOD, RAID 0, RAID 1
number_of_bays: 2
transfer_speed: 215MB/s read and 212MB/s write
storage_capacity: 40TB
power_consumption: 22.1W read/write and 11.4W hibernation
expandable_storage: USB 3.0 external storage
```

- **Price:** £191.31 [^2]
- **Summary:** The TerraMaster F2-221 is a two-bay NAS supporting up to 40TB of internal raw storage with RAID 0, RAID 1, JBOD, or single-drive configurations. Its dual Gigabit Ethernet ports, USB 3.0 connectivity, and 4K video transcoding make it suitable for home users and small offices needing shared storage, backups, and media streaming.
- **Ideal For:** It offers strong value under £500 with two bays, up to 40TB of storage, RAID 1 protection, quoted transfer speeds up to 215MB/s, and USB 3.0 expansion for home or small-office backup and media storage.
- **Additional Sources:** [^3]

### TerraMaster F4 SSD
```yaml
product: terramaster-f4-ssd
brand: TerraMaster
price_gbp: 293.59
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
raid_support: TRAID, TRAID+, Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
number_of_bays: 4 x M.2 NVMe
transfer_speed: 5GbE
storage_capacity: 32 TB
power_consumption: 32.0 W read/write; 8.0 W hibernation
expandable_storage: TRAID, TRAID+, RAID 5, RAID 6, RAID 10 with larger drives
```

- **Price:** £293.59 [^4]
- **Summary:** The TerraMaster F4 SSD is a compact, quiet four-bay all-flash NAS supporting up to 32 TB through four M.2 NVMe SSDs. Its 5GbE networking, flexible RAID options, TRAID expansion, and low power consumption suit home users, creators, and small offices seeking fast shared storage.
- **Ideal For:** It offers strong value under £500 with four M.2 NVMe bays, up to 32 TB capacity, 5GbE networking, flexible TRAID expansion, and support for RAID 0, 1, 5, 6, and 10.
- **Additional Sources:** [^5]

---
## References & Sources
[^1]: Network Webcams, accessed 2026-08-28. https://www.networkwebcams.co.uk/synology-ds420/
[^2]: Amazon, accessed 2026-08-28. https://www.amazon.com/s?k=TerraMaster+F2-221
[^3]: Newegg, accessed 2026-08-28. https://www.newegg.com/p/pl?d=TerraMaster+F2-221
[^4]: Amazon, accessed 2026-08-28. https://www.amazon.com/s?k=TerraMaster+F4+SSD
[^5]: TerraMaster Official Store, accessed 2026-08-28. https://www.terra-master.com/products/f4-ssd