Synology DS218From real comments

Verdict distilled from 37 mentions across 12 aspects in comments under product review videos.

Positive sentiment48%
PROS 48%
CONS 52%

Rank based on 37 mentions across 12 aspects

View the verdict as

Buy this if...

  • You want an easy entry-level NAS for backups and family file access
  • You're willing to experiment with RAM upgrades for extra performance
  • You mainly need 1080p multimedia streaming, not heavy 4K transcoding

What users love

Skip this if...

  • You need smooth Plex/4K transcoding out of the box
  • You're uncomfortable with fiddly disassembly and case removal
  • You want simple front-loading drive swaps without opening the case

What users complain about

Compare in seconds

Based on user comments

Best choice
1Mid
Synology DS920~$549 · 1.8× pricier
Long-term reliabilityNetworking speed beyond 1GbpsPlex and media handling improved by SSD cacheFan noiseCPU thermal and virtualization limitsMixed value of RAM/SSD upgrades for basic use
Synology DS920~$549 · 1.8× pricier
Long-term reliability
Networking speed beyond 1Gbps
Plex and media handling improved by SSD cache
Fan noise
CPU thermal and virtualization limits
Mixed value of RAM/SSD upgrades for basic use
2Value
Synology DS220~$299 · similar price
Easy setup and intuitive DSM software
Synology DS220~$299 · similar price
Easy setup and intuitive DSM software
3Value
Ugreen DH4300~$329 · similar price
Easy setup for beginners
Ugreen DH4300~$329 · similar price
Easy setup for beginners
Best value
4Budget
Synology DS118~$199 · 1.5× cheaper
Sufficient for backups, streaming, and surveillanceEasy setup for beginnersGood value versus higher-tier modelsNo drive redundancyConfusing entry-level lineup overlapMissing vibration dampers
Synology DS118~$199 · 1.5× cheaper
Sufficient for backups, streaming, and surveillance
Easy setup for beginners
Good value versus higher-tier models
No drive redundancy
Confusing entry-level lineup overlap
Missing vibration dampers
5Value
OWC Mercury Elite Pro Dual~$299 · similar price
Bus-Powered FlexibilityCompact, Portable DesignDrives Readable If Enclosure FailsNoisy Drive ActivityAbrupt Unmount SoundRAID 1 Doesn't Boost Read Speed
OWC Mercury Elite Pro Dual~$299 · similar price
Bus-Powered Flexibility
Compact, Portable Design
Drives Readable If Enclosure Fails
Noisy Drive Activity
Abrupt Unmount Sound
RAID 1 Doesn't Boost Read Speed
6Budget
Synology DS220j~$169 · 1.8× cheaper
Easy setup and softwareReliable Time Machine and photo backupEasy drive upgradesBackup reliability issuesSlow performance for indexing and transfersDrive access requires full disassembly
Synology DS220j~$169 · 1.8× cheaper
Easy setup and software
Reliable Time Machine and photo backup
Easy drive upgrades
Backup reliability issues
Slow performance for indexing and transfers
Drive access requires full disassembly
7Mid
OWC ThunderBay 4~$499 · 1.7× pricier
Long-term reliabilityFlexible DAS usageStraightforward drive replacementConstant loud fan noiseNot the fastest in its classRAID 5 rebuild risk and duration
OWC ThunderBay 4~$499 · 1.7× pricier
Long-term reliability
Flexible DAS usage
Straightforward drive replacement
Constant loud fan noise
Not the fastest in its class
RAID 5 rebuild risk and duration
8Budget
Synology DS218j~$169 · 1.8× cheaper
Budget-friendly priceSimple, dedicated file storage and backupAdequate for direct-play media streamingUnderpowered performance under loadNo hardware transcodingPoor customer support experiences
Synology DS218j~$169 · 1.8× cheaper
Budget-friendly price
Simple, dedicated file storage and backup
Adequate for direct-play media streaming
Underpowered performance under load
No hardware transcoding
Poor customer support experiences
9Value
OWC 4M2 Ultra~$399 · 1.3× pricier
Flexible multi-bay configurationPraised predecessor track recordStrong throughput with full bay populationInconsistent performance scaling across configurationsRAID 0 reliability riskNo larger bay-count option
OWC 4M2 Ultra~$399 · 1.3× pricier
Flexible multi-bay configuration
Praised predecessor track record
Strong throughput with full bay population
Inconsistent performance scaling across configurations
RAID 0 reliability risk
No larger bay-count option
You are here
10Value
Synology DS218~$299
RAM upgrade success storiesClear, helpful reviews appreciatedEasy entry point for NAS beginnersConfusing official RAM limitsWeak Plex/multimedia performanceFiddly disassembly for upgrades
Synology DS218~$299
RAM upgrade success stories
Clear, helpful reviews appreciated
Easy entry point for NAS beginners
Confusing official RAM limits
Weak Plex/multimedia performance
Fiddly disassembly for upgrades

Who wins on what (similar price)

Ranked by what users actually praise

Overall Impression

RAM upgrades are popular but confusingly documented. Many owners successfully pushed their DS218+ to 10GB, 12GB, or even 16GB with mixed-brand SODIMMs, reporting stable operation after reseating modules a few times. However, Synology support reportedly recommended capping at just 4GB, and other users saw conflicting max-RAM figures (6GB, 8GB) from official sources, leaving buyers unsure what's actually safe or necessary before purchasing extra memory.

Multimedia performance frustrates some users. Several commenters struggled to get Plex or Video Station running smoothly, with lag even on a home connection, and one gave up and returned the unit. Others debated whether 4K transcoding and 30/60FPS handling work reliably, noting the base DS218/DS218Play's Realtek CPU historically lacked Plex support, and that CPU usage looks high just navigating menus.

Physical setup and disassembly can be tricky for newcomers. Multiple reviewers found removing the case for RAM installation harder than videos made it look, requiring knives to pry clips and several attempts to get memory seated correctly. One user got a memory card stuck inside and couldn't reopen the enclosure. Screw holes are for 2.5in SSDs only, and drives must be installed by opening the case rather than a front-loading tray.

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