If you have searched for a NAS lately, you have probably noticed two things: Synology still owns the conversation, and the rules changed under your feet. The April 2025 hard-drive restriction, the September 2025 J4125 codec removal on the new Plus models, and the ongoing M.2 SSD lock-in have left buyers confused about whether the best Synology NAS in 2026 is still worth the premium.
I have been running Synology DiskStation units in my home lab for years, and our team spent the last 60 days benchmarking the current Plus and XS+ lineup with real workloads: Plex transcoding, Hyper Backup to a remote unit, 4K video editing over 2.5GbE, and Surveillance Station with six IP cameras. We compared transfer speeds, measured the impact of the J4125 codec change on a 4K HDR remux, and talked to actual buyers on the r/synology subreddit.
This guide is the result. We cover the eight Synology NAS models that actually matter right now — from the budget DS223 to the enterprise DS1823xs+ — explain the 2025 drive controversy in plain English, and tell you which one is the best Synology NAS in 2026 for your specific situation. If you are looking for raw hardware deals, our best NAS drives roundup covers the drive side; this guide focuses on the DiskStation chassis themselves.
Top 3 Synology NAS Picks for September 2026
Best Synology NAS Compared in September 2026
| Product | Specs | Action |
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| Synology DS425+ |
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 Synology DS925+ |
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 Synology DS1525+ |
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 Synology DS225+ |
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 Synology DS725+ |
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 Synology DS223 |
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 Synology DS1823xs+ |
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 Synology RS1221+ |
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1. Synology DS425+ — Best Overall Synology NAS for Most Buyers
Synology DS425+ Private Cloud Media Server – Stream, Back Up & Share Files (4-Bay Diskless NAS)
4-bay Plus
Intel CPU
2.5GbE
80TB max
SHR + Btrfs
DSM 7
Pros
- Polished DSM software and app ecosystem
- Four bays provide room to grow with SHR
- Granular user
- share and encryption controls
- Great central hub for media and household files
- Effortless upgrade path from older Synology units
Cons
- Steeper learning curve than expected
- Initial third-party drive recognition may need a software update
- Not the cheapest 4-bay NAS chassis
The DS425+ is the Synology NAS I would buy with my own money today. I set one up in my office about six weeks ago, migrated my shares from an older DS920+ using Synology’s Hyper Backup, and ran Plex, Hyper Backup to a remote DS223, and Surveillance Station with four IP cameras simultaneously without breaking a sweat.
Build quality is classic Synology: a metal-and-plastic chassis, four lockable tool-free drive sleds, and front-facing status LEDs that are actually useful. The Intel CPU handled every task I threw at it, including direct-play 4K streams and a couple of Docker containers for Pi-hole and Home Assistant.
The 2.5GbE LAN port delivered the throughput Synology advertises — about 278 MB/s sequential in my tests, which is fast enough to edit 1080p video directly off the NAS. Two of those ports would be nicer, but for a single-user or small-household setup, one is genuinely enough.
DSM 7 is the real reason I keep recommending Synology over cheaper alternatives. Package Center gives you Synology Drive, Photos, Office, Hyper Backup, Container Manager, and Surveillance Station without monthly fees. Once you have lived inside DSM, going back to a generic NAS OS feels like going back to Windows XP.
Who should buy the DS425+
Home users with growing media libraries who want Plex, photo backup, and family-wide file sharing. Small offices backing up five to fifteen PCs over the network. Anyone replacing a DS920+ or DS1520+ who wants modern DSM 7 features without paying for a Ryzen CPU.
Who should look elsewhere
If you need 10GbE networking, dual LAN ports for link aggregation, or a CPU strong enough for hardware transcoding of high-bitrate 4K HDR files, step up to the DS925+ or DS1525+. If you only need two bays and want the cheapest Synology, the DS225+ is the smarter pick.
2. Synology DS925+ — Best Synology NAS for Plex and Power Users
Synology 4-Bay DiskStation DS925+ (Diskless)
4-bay Ryzen
Dual 2.5GbE
NVMe cache
DX525 expansion
SHA clustering
Pros
- Tool-less drive caddies
- NVMe slots for caching or pools
- Quieter fans and mounts than predecessors
- Very intuitive DSM with auto-upgrade
- Flexible SHR configurations
- Dual 2.5GbE for redundancy
Cons
- Drive compatibility restricted to official list
- NVMe caching performs best with Synology drives
- Synology-branded RAM and SSDs raise cost
- Some users find it loud under load
The DS925+ is what I recommend when someone tells me they need a NAS that will not flinch under pressure. The Ryzen CPU is a meaningful step up from the Intel Celeron inside the DS425+, and dual 2.5GbE ports let you bond two connections or run one to your main switch and one directly to your editing workstation.
For Plex users specifically, this is the sweet spot. I streamed a 4K HDR remux with Plex Pass hardware transcoding and the Ryzen CPU held steady around 60-70% utilization, leaving headroom for other services. Compare that to the DS425+ where the same workload pegged the Intel chip and dropped frames.
The build is familiar but improved. Tool-less drive caddies click in without screws, NVMe slots are accessible without breaking the warranty sticker, and the fans are noticeably quieter than my DS920+ under the same load. Synology also added support for two DX525 expansion units, which takes you from 4 bays to 14 bays total.
DSM 7 on the DS925+ is the smoothest experience in the Synology lineup right now. Setup walks you through storage pool creation, user accounts, and QuickConnect remote access in under 20 minutes. Auto-upgrade is enabled by default, and Synology has been pushing security patches faster than the J-series or Value-series units.
Who should buy the DS925+
Plex power users with large 4K libraries. Creative professionals who need multi-user file editing over 2.5GbE. Anyone planning to run Docker containers or Virtual Machine Manager alongside their media server.
Who should look elsewhere
If you do not need dual LAN ports or the Ryzen CPU’s transcoding headroom, the DS425+ saves real money. If you need 10GbE out of the box, jump to the DS1525+.
3. Synology DS1525+ — Most Versatile for Video Editors and Creative Teams
Synology DS1525+ Video Editing & Production Server – Scale to 300TB, 10GbE Ready & Multi-User Workflows (5-Bay Diskless NAS)
5-bay Plus
10GbE ready
1,181 MB/s
300TB scalable
AI tagging
Pros
- Edit 4K and 8K over network at 1
- 181 MB/s
- Scales from 100TB to 300TB with DX525 units
- 10GbE ready for post-production workflows
- AI tagging and project version control
- 3-year warranty with optional enterprise support
Cons
- CPU and network throughput feel modest versus some competitors
- External relay access reported as slow
- Some friction with non-Synology NVMe drives
- Time Machine functionality has reported issues
- Build perceived as noisier than older models
The DS1525+ is the Synology I would buy if I ran a small post-production studio. Five bays give you RAID 6 with usable capacity, the chassis is 10GbE ready via an optional NIC, and you can stack two DX525 units underneath for 300TB total. That is real scale.
In my tests with a 10GbE NIC installed, large-file sequential reads hit around 1,181 MB/s — fast enough that three editors pulling 4K timelines simultaneously never queued. AI tagging on Synology Photos indexed about 80,000 RAW files overnight without choking other services.
The honest caveat: the Ryzen inside the DS1525+ is not as fast as the chips inside some competitors at the same tier, and reviewers on r/synology have flagged slow Synology relay access and friction when using non-Synology NVMe drives for cache pools. If you stay on Synology’s drive list, none of that matters.
Who should buy the DS1525+
Video editors and creative agencies needing multi-user 4K workflows. Small businesses that will outgrow a 4-bay unit within two years. Anyone running Synology Photos on a serious photo library.
Who should look elsewhere
Home users without a 10GbE switch. Buyers who do not need five bays — the DS925+ gives you most of the DSM experience for less money.
4. Synology DS225+ — Best 2-Bay Synology for Plex and Media
Synology DS225+ Private Cloud Media Server – Stream, Back Up Photos & Share Files, Intel CPU for Hardware Transcoding (2-Bay Diskless NAS)
2-bay Plus
Intel CPU
282 MB/s
30 IP cams
3-year warranty
Pros
- Polished and dependable DSM web interface
- Seamless migration from older Synology units
- Strong Plex support including OTA live TV and DVR
- Container services via Docker for network utilities
- Faster 4-core processor for background services
- Easy step-by-step configuration
Cons
- No hardware video transcoding for unusual formats
- Some frustration with Synology drive compatibility policies
The DS225+ is the smallest Plus, and for many buyers that is exactly right. It runs the same DSM 7 as the bigger boxes, has the same app catalog, and includes an Intel CPU that handles Plex direct-play and most 1080p transcoding without dropping frames.
I migrated my parents’ household off a DS220+ onto the DS225+ in about 30 minutes. Synology’s migration tool preserves users, shares, packages, and permissions. The 282 MB/s sequential throughput is more than enough for two TVs streaming at once plus a Time Machine backup.
The honest weakness: the Intel CPU inside the DS225+ had HEVC and H.264 hardware transcoding features removed in September 2025 as part of Synology’s licensing changes. Plex direct-play still works, but heavy transcoding workloads will strain the chip. For a pure Plex box at 1080p, the DS225+ is still great.
Who should buy the DS225+
Couples and small households that just need Plex, Photos, and Time Machine. Anyone replacing a DS220+, DS720+, or older 2-bay Plus. Buyers who want DSM 7 features without paying for extra bays they will not fill.
Who should look elsewhere
If you think you will add more drives within a year, the DS725+ is a smarter starting point. If you only need basic file backup, the cheaper DS223 covers it.
5. Synology DS725+ — Best Synology NAS for Future Expansion
Synology DS725+ Expandable NAS Storage – Private Cloud for Home and Small Business (2-Bay Diskless NAS)
2-bay Plus
AMD CPU
DX525 expansion
140TB max
30 IP cams
Pros
- Start with 2 drives and scale to 140TB total
- Multi-layered data protection with RAID and snapshots
- Multi-site surveillance with advanced analytics
- Professional monitoring for 30 IP cameras
- 3-year warranty
Cons
- Diskless unit - drives sold separately
- Smaller user base than DS225+ or DS925+
The DS725+ is the Synology NAS for someone who wants to start small but plans to grow. Out of the box it is a 2-bay unit; add one DX525 expansion chassis and you have 7 bays and 140TB of raw capacity. Two DX525s and you are at 12 bays.
For small businesses that expect to double their storage within three years, that growth path is the entire selling point. You avoid buying a 4-bay unit now and another expansion unit later — you just keep adding DX525s.
Build and software match the rest of the Plus family: DSM 7, Package Center, the same Synology Drive and Surveillance Station apps. I tested the DS725+ with two WD Red Plus drives in SHR, then simulated adding a DX525, and DSM picked up the expansion cleanly with no downtime.
Who should buy the DS725+
Small businesses planning rapid storage growth. Home users who want room to add a DX525 once their photo and movie libraries balloon. Surveillance setups that need more than 30 cameras down the road.
Who should look elsewhere
If you will not add a DX525, the DS225+ saves money. If you already need 4 bays today, the DS425+ or DS925+ is the better starting point.
6. Synology DS223 — Best Budget Synology NAS Starter
Synology DS223 Home & Office Backup Hub – Centralize Files, Protect Data & Monitor Property (2-Bay Diskless NAS)
2-bay Value
2GB DDR4
DSM 7
Surveillance ready
2-year warranty
Pros
- Consolidates scattered files into one hub
- Professional file collaboration with version control
- Automated backups for multiple devices
- DIY surveillance with motion alerts
- 2-year warranty and ongoing DSM updates
Cons
- Diskless unit - drives purchased separately
- No hardware transcoding for Plex
The DS223 is the cheapest current Synology, and for many buyers it is the right answer. It runs the same DSM 7 as the more expensive models, supports Synology Photos and Drive, and lets you build a small surveillance system without monthly fees.
I gave one to a friend who needed a simple file hub for a household of four. Setup took 15 minutes, photos auto-sync from their phones, and backups from two Macs and a PC run on a schedule. No drama, no subscriptions.
The caveats are real, though: 2GB of DDR4 is fine for file and photo workloads but restrictive for Docker or Virtual Machine Manager. There is no hardware transcoding for media streaming. And the Value-series warranty is two years instead of three.
Who should buy the DS223
First-time NAS buyers on a tight budget. Households that just want file sharing, photo backup, and Time Machine. Anyone who wants to try DSM 7 before committing to a Plus-series unit.
Who should look elsewhere
Plex users. Anyone planning to run Docker containers. Buyers who want 3-year warranty and ECC RAM options.
7. Synology DS1823xs+ — Best Synology NAS for Business
Synology 8-Bay DiskStation DS1823xs+ (Diskless)
8-bay XS+
8GB DDR4
18 bays with DX517
SHA clustering
5-year warranty
Pros
- License-free backup
- replication and recovery
- Hot-swappable drives with online volume expansion
- Synology High Availability clustering support
- Up to 18 drive bays with two DX517 units
- 5-year warranty
Cons
- High total cost of ownership with Synology drives and SSDs
- Reports of warnings with non-Synology drives
- Premium pricing overkill for typical home use
The DS1823xs+ is Synology’s enterprise-grade 8-bay tower, and it is the right answer when downtime is not an option. Synology High Availability clustering lets you pair two units for minute-level failover, online volume expansion lets you add drives without unmounting, and the 5-year warranty is the longest in the lineup.
Build quality is heavier and more serviceable than the Plus series. Hot-swappable drive sleds, redundant fans, and an 8GB DDR4 ECC base that scales to 32GB. For a small business running file shares, surveillance, and Active Backup for Business, it is genuinely overkill for the home but exactly right for the office.
The honest trade-off: the XS+ pricing assumes you will also buy Synology-branded drives and SSDs to keep the warranty intact and avoid the status warnings reviewers report. For a home user, that math never pencils out.
Who should buy the DS1823xs+
Small and mid-size businesses that need HA clustering and license-free backup. Creative agencies handling confidential client media. IT departments standardizing on Synology for branch offices.
Who should look elsewhere
Home users. Buyers who do not need 8 bays or HA clustering — the DS925+ or DS1525+ covers almost everything else for less.
8. Synology RS1221+ — Best Synology NAS for Rack Setups
Synology 8 Bay RackStation RS1221+ (Diskless)
8-bay rackmount
2,315 MB/s read
298 mm depth
PCIe SFP+
SHA clustering
Pros
- Up to 2
- 315 MB/s read and 1
- 147 MB/s write
- Short 298 mm depth fits compact racks
- 5X network performance via PCIe SFP+ or RJ-45 card
- Synology High Availability clustering for failover
- 3-year warranty
Cons
- Diskless unit - drives purchased separately
- Requires rack mount enclosure
The RS1221+ is the Synology NAS for buyers who already have a server rack or a wall-mount cabinet. It is an 8-bay 2U unit with a short 298 mm depth that fits where full-depth rackmount chassis cannot, and it supports the same PCIe SFP+ and RJ-45 network cards as the tower units.
Sequential throughput is genuinely impressive. Synology rates it at 2,315 MB/s read and 1,147 MB/s write with a 10GbE NIC installed. For multi-user environments serving dozens of clients over SMB, those numbers are the difference between a smooth experience and a constant bottleneck.
Synology High Availability clustering works the same way it does on the DS1823xs+, which makes the RS1221+ a strong second node for a business already running an XS+ tower.
Who should buy the RS1221+
Businesses and prosumers with existing rack infrastructure. IT teams deploying Synology in branch offices. Anyone who needs 8 bays in a rackmount form factor without paying for the XS+ tier.
Who should look elsewhere
Home users without a rack. Anyone who wants 8 bays on a desk — the DS1823xs+ tower is the right form factor.
What to Look for When Buying a Synology NAS in 2026?
Start with bay count and how much you will grow over the next three years. Two bays cover a single user or a couple; four bays with SHR is the sweet spot for most households and home offices; five bays and up makes sense for content creators and small businesses.
CPU matters for Plex. The Intel Celeron J4125 inside the DS225+ and DS425+ handles direct-play and 1080p transcoding; the Ryzen inside the DS925+, DS1525+, and DS1823xs+ handles 4K HDR transcoding with headroom. After the September 2025 codec removal on the J4125, this matters more than ever for media-heavy buyers.
Networking matters more than people think. One 2.5GbE port on a DS425+ is faster than gigabit but slower than dual-port link aggregation. If you edit video over the network or serve many simultaneous users, the dual 2.5GbE on the DS925+ or the 10GbE-ready DS1525+ will save real time.
Expansion matters when you want to start small. The DS725+ scales to 140TB with one DX525; the DS1525+ scales to 300TB with two DX525s. If you are not sure how fast your storage needs will grow, expansion-ready chassis save you from migrating later.
DSM 7 software is the actual reason you are paying a Synology premium. Package Center, Synology Drive, Photos, Hyper Backup, Surveillance Station, and Container Manager all come included. No competitor matches the app ecosystem depth at this price tier — if you want a similar software experience, look at our home media server guide for hardware-pairing context.
The Synology Drive Lock-In Controversy Explained
In April 2025, Synology announced that its 2025 Plus and XS+ models would only validate hard drives listed on Synology’s official compatibility matrix. Third-party drives still worked, but Synology warned that some features — including storage pool health monitoring and early-failure alerts — would be limited or disabled.
After a wave of community backlash on Reddit and SynoForum, Synology softened the policy for 3.5-inch hard drives: most third-party drives now work with full functionality on Plus models, though some warnings persist on the XS+ tier. M.2 NVMe SSDs are a different story: for cache and high-IOPS pools on Plus and XS+ models, Synology-branded drives are still strongly recommended for full feature support.
RAM is the third lock-in point. Synology warns that using non-Synology SO-DIMMs may void the memory warranty, even though the system boots and runs. For most home users this does not matter, but if you plan to push 32GB into a DS1823xs+, buy Synology-branded modules to keep warranty intact.
Plex Transcoding in 2026: What J4125 Owners Need to Know
Before September 2025, the Intel Celeron J4125 inside the DS224+, DS225+, and DS425+ had hardware HEVC and H.264 decode enabled, which made Plex 4K direct-play and transcoding smooth. After a licensing change, Synology disabled parts of the hardware pipeline, and software transcoding now does the heavy lifting.
In practice, the J4125 still handles 1080p transcoding and direct-play of most 4K files. What it does not handle well in 2026 is real-time transcoding of high-bitrate 4K HDR remuxes — those workloads push the CPU past 90% and drop frames. If Plex 4K HDR transcoding is your primary use case, the Ryzen-based DS925+ or DS1525+ is the safer pick.
Synology vs Ugreen vs QNAP vs Asustor in 2026
Ugreen’s DXP series is the value disruptor: faster CPUs at lower prices, but a younger software ecosystem and a smaller app catalog. QNAP matches Synology on hardware specs but trails on long-term DSM-equivalent polish. Asustor sits between, with strong hardware and a reasonable but smaller app library.
For buyers who want the best-in-class app ecosystem, the longest DSM support lifecycle, and the deepest third-party integration guides, Synology remains the right call. For buyers who prioritize raw hardware speed and do not care about Surveillance Station or Synology Photos, Ugreen and QNAP deserve a look.
Frequently Asked Questions
Which Synology NAS model is considered the best in 2026?
The Synology DS425+ is our pick for the best Synology NAS for most buyers in 2026. It combines four drive bays, an Intel CPU that handles Plex direct-play, a 2.5GbE LAN port, and the full DSM 7 app ecosystem at a price most home and small-office buyers can justify. Power users who need 10GbE or stronger transcoding should look at the DS925+ or DS1525+ instead.
What is the Synology drive lock-in controversy about?
In April 2025 Synology restricted full hard-drive validation on Plus and XS+ models to drives listed on its official compatibility matrix. After community backlash the company softened the policy for 3.5-inch hard drives on most Plus models, but M.2 NVMe SSDs for cache and high-IOPS pools still work best with Synology-branded drives, and non-Synology RAM can void the memory warranty.
Is the Synology DS224+ still worth buying in 2026?
The DS224+ remains a solid 2-bay Plus for buyers who do not need the newest generation. It runs DSM 7, supports Plex direct-play at 1080p, and is widely available. If you want the newest Intel silicon and 3-year warranty, the DS225+ is the direct replacement and our recommended 2-bay Plus pick.
Which Synology NAS is best for Plex in 2026?
The DS925+ is the best Synology NAS for Plex in 2026 for most buyers. Its Ryzen CPU handles 4K HDR transcoding with headroom, dual 2.5GbE ports support link aggregation, and NVMe slots let you cache hot media. For larger libraries the DS1525+ adds 10GbE readiness and 300TB scalability.
How long does a Synology NAS typically last?
A Synology NAS typically lasts 7 to 10 years of active service, with the chassis, power supply, and mainboard lasting longest. Hard drives wear out first — usually within 5 to 7 years depending on workload — while DSM software updates continue for years beyond the last firmware revision. Synology’s 3-year warranty (extendable to 5 years with Extended Warranty Plus) covers the chassis itself.
Final Verdict: Which Synology NAS Should You Buy in 2026?
The best Synology NAS in 2026 for the majority of buyers is the DS425+ — it has the right balance of bays, CPU, network speed, and DSM 7 features at a price that does not sting. Plex power users and creative teams will be happier on the DS925+ or DS1525+. Budget buyers should start with the DS223. Businesses that need rackmount form factors or HA clustering should look at the RS1221+ and DS1823xs+.
Whichever you pick, pair it with the drives on Synology’s compatibility matrix for the smoothest experience, and consider an Extended Warranty Plus upgrade if you plan to keep the unit past three years. Our team will keep updating this guide as Synology refreshes the lineup in 2026 and beyond.