NAS in 2026: Synology's walls closed in, Ugreen and TrueNAS broke out
The NAS world had a rough 2024-2025. Synology announced (then partially walked back) that newer DSM 7.2+ installs would verify drives against an HDD whitelist — effectively blocking third-party Western Digital / Seagate drives on certain Plus/Pro models. Ugreen launched the DXP series ($300-900) — well-built hardware with an immature but rapidly improving OS. UGREEN runs Synology-like features at 60% of the price. TrueNAS Core/SCALE remains the DIY king for advanced users.
| NAS | Bays | CPU | RAM | 10 GbE? | Price (diskless) |
|---|
| Synology DS224+ (2-bay) | 2 | Intel Celeron J4125 4-core | 2 GB (upgradable 6 GB) | No | $299 |
| Synology DS425+ (4-bay) | 4 | Intel Celeron J4125 | 2 GB (expandable) | No (optional via USB) | $549 |
| Synology DS925+ (4-bay, 2025) | 4 | AMD Ryzen V1500B | 4 GB ECC (expandable 32) | Optional 10 GbE | $649 |
| Synology DS1825+ (8-bay) | 8 | AMD Ryzen V1500B | 8 GB ECC (expandable 32) | Optional 10 GbE | $1,199 |
| Ugreen NASync DXP2800 (2-bay) | 2 | Intel N100 4-core | 8 GB DDR5 | Yes (2.5 GbE x2) | $399 |
| Ugreen NASync DXP4800 Plus (4-bay) | 4 | Intel Core i5-1235U 10-core | 8 GB DDR5 | Yes (10 GbE + 2.5 GbE) | $799 |
| Ugreen NASync DXP6800 Pro (6-bay) | 6 | Intel Core i5-1235U | 8 GB DDR5 ECC option | Yes (10 GbE) | $1,299 |
| QNAP TS-464 (4-bay) | 4 | Intel N5095 quad | 8 GB | Optional 10 GbE | $599 |
| TerraMaster F4-424 Pro (4-bay) | 4 | Intel Core i3-N305 8-core | 32 GB DDR5 | Yes (10 GbE) | $649 |
| DIY TrueNAS (Jonsbo N3 case + ASRock N100M) | 8 | Intel N100 | 16 GB DDR5 | Yes (2.5 GbE, 10 GbE PCIe) | ~$600 diskless |
Synology's drive whitelist — what changed
Since DSM 7.2.2 (mid-2024), Synology Plus and XS series ship with a Compatible Drive Database — only Synology-branded drives (rebadged Toshiba) and select Seagate IronWolf / WD Red pass a verification step. Third-party drives can still be used but with warnings, reduced functional warranty, and no access to some storage features (dedup, integrity checks). For a $200 enclosure charging $200/drive more than Amazon pricing, this is a real cost ratchet. Synology die-hards accept it; new buyers increasingly look elsewhere.
Ugreen NASync — the surprising 2025 winner
Ugreen (the USB-C accessory brand) launched NASync in late 2024 with hardware that genuinely impresses: N100 / i5 CPUs, 8 GB DDR5 standard, 10 GbE on mid-range models, M.2 NVMe caching slots. Software (UGOS Pro) was rough at launch but has caught up fast — Docker containers, cloud sync, Plex, Time Machine, iSCSI, ZFS (on newer models) are all working. Still missing: surveillance station equivalent, as many third-party app ports, the app marketplace maturity of Synology. For 80% of home NAS needs, Ugreen at 60% Synology price is the value play of 2026.
TrueNAS — the DIY path
TrueNAS SCALE (Linux-based, replaces Core in most builds) runs on any x86 hardware. Typical DIY: Jonsbo N3 case (8-bay, $180), ASRock N100 motherboard (~$140), 16 GB DDR5 ECC (~$65), Seasonic PSU (~$110), 10 GbE NIC (~$100) = ~$600 diskless for a 8-bay NAS with ZFS, snapshots, replication, containers, and unlimited scalability. Learning curve: moderate-to-steep. Result: an unlimited-seat, commercial-grade NAS that outperforms a $2,000 Synology unit. For technical users, TrueNAS is almost always the right answer.
What you'll actually use the NAS for
File sharing (replacement for OneDrive/Dropbox): all NAS do this well via SMB/AFP/WebDAV. Time Machine backup: Synology/Ugreen/TrueNAS all support it; check max backup size limits. Plex / Jellyfin: needs 4-core+ CPU with Quick Sync for 4K transcode. N100 (Ugreen DXP2800), i5-1235U (DXP4800 Plus), or Synology DS925+'s AMD V1500B all handle 4K transcode. Synology's older J4125 units throttle 4K. Photo library: Synology Photos, Immich (on Ugreen / TrueNAS), PhotoPrism — all work. Surveillance: Synology Surveillance Station (license per camera $49), Frigate on TrueNAS/Ugreen (free, open-source, AI-based).
RAID recommendations
2-bay: RAID 1 (mirroring) — survive one drive failure, half total capacity. 4-bay: RAID 5 (parity) — survive one failure, use 75% of capacity. RAID 10 — survive two failures, use 50% of capacity, faster. 6-8 bay: RAID 6 or Synology SHR-2 — survive two drive failures simultaneously (important as rebuild times on 20 TB drives are 24-48 hrs, during which a second drive dying would be fatal). ZFS (TrueNAS, Ugreen Pro models): uses dataset-level snapshots, checksums, and is the most reliable at scale. Always maintain a separate offsite backup regardless of RAID level. RAID is not a backup.
Heads up: Drives sourced from WD Shuckable externals (WD Easystore, WD Elements) often contain white-label WD Red Plus drives for ~60% of the retail drive price. Warranty is through the external unit, not drive-specific — many users accept the risk. Factor that into TCO math.
Frequently asked questions
Synology or Ugreen in 2026?
Synology if: you're extending an existing Synology investment, want the most mature software, and are OK with drive whitelist. Ugreen if: starting fresh, want 10 GbE under $1,000, or value hardware/price over software maturity. For most new buys in 2026, Ugreen wins on value.
Do I need ECC RAM?
ECC is recommended for ZFS (data integrity). Non-ECC is fine for ext4/Btrfs. Most NAS under $800 don't offer ECC. Above $1,200, it's usually standard. For family photos you can't replace, ECC + ZFS is the gold standard.
How loud is a NAS?
2-4 bay NAS with 3.5" drives: 30-40 dB idle, 45-55 dB under heavy load. Placement matters — don't put in bedroom. 2.5" drive or SSD-only NAS: 20-25 dB, much quieter.
Can I use SSD in a NAS?
Yes, but expensive. 4 × 4 TB SSDs in a NAS = $1,000+, vs 4 × 8 TB HDD for $700. SSD NAS makes sense for: small high-IOPS workloads (VMs, databases), or quiet/small form factors. For bulk storage, HDD wins price/GB 4x.
How often do drives fail?
Backblaze Drive Stats shows 0.5-2% annual failure rate for major-brand drives. Enterprise/NAS-rated (WD Red Plus/Pro, Seagate IronWolf Pro): lower end. Desktop drives in NAS: higher end. Plan for a failure every 3-5 years per drive position.