Buying guide · Storage & Networking

UGREEN NASync vs Synology (2026): Home NAS, NVMe Cache & 2.5GbE Guide.

Choose UGREEN NASync (DXP4800 Plus or DXP2800) if you want superior hardware per bay, including standard 2.5GbE and 10GbE LAN ports, modern Intel processors with QuickSync hardware transcoding, and unlocked third-party NVMe SSD compatibility. Choose Synology Plus (DS923+ or DS423+) if turnkey DSM 7.2 software, Active Backup, and SHR mixed-drive expansion matter more than raw bandwidth.

By The Hardware Pick editorsPublished Research-based · not lab-tested

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Quick list

Best Picks at a Glance

  1. 01
    View Samsung 990 PRO 2TB (MZ-V9P2T0B/AM) at AmazonSamsung 990 PRO 2TB M.2 NVMe SSD without heatsink, front label
    Best NVMe SSD for NAS cache & Docker poolsBest NVMe SSD

    PCIe 4.0 x4 · M.2 2280 · 7,450 MB/s · 2GB DRAM

  2. 02
    View WD_BLACK SN850X 2TB with heatsink (WDS200T2XHE) at AmazonWD_BLACK SN850X NVMe SSD with black heatsink, angled view
    Best high-sustained-write NVMe alternativeBest high-sustained-write NVMe

    PCIe 4.0 x4 · M.2 2280 · heatsink · 7,300 MB/s

  3. 03
    View WD_BLACK SN7100 2TB (WDS200T4X0E) at AmazonWD_BLACK SN7100 2TB M.2 NVMe SSD, front label
    Best low-power NVMe for tight NAS baysBest low-power NVMe

    PCIe 4.0 x4 · M.2 2280 · DRAM-less · 7,250 MB/s

  4. 04
    View TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router at AmazonTP-Link Archer BE550 Wi-Fi 7 router, front view
    Best 2.5GbE router for home NAS throughputBest 2.5GbE router

    Tri-band BE9300 · 5× 2.5G · USB 3.0

Match your NVMe cache and 2.5GbE network to your NAS workload

The short list

Best NVMe SSD for NAS cache & Docker pools

PCIe 4.0 NVMe with dedicated LPDDR4 DRAM cache

Samsung 990 PRO 2TB (MZ-V9P2T0B/AM) · 1 of 4

PCIe 4.0 x4 · M.2 2280 · 7,450 MB/s · 2GB DRAM

7450MB/s read (Samsung)
Gen4PCIe 4.0 x4
1200TBW endurance
5 yrsWarranty

Get it if UGREEN NASync and custom home-server builders running Docker containers, Immich photo indexing, and SMB read/write caching over 2.5GbE or 10GbE networks.

Skip it if Your NAS only has a 1GbE network port where spinning hard drives already saturate available wire speed.

Reasons to buy

  • Among the fastest Gen4 drives
  • DRAM cache and 1200 TBW on the 2TB
  • Works in any PCIe 4.0 or 5.0 M.2 slot

Reasons to skip

  • This version has no heatsink: add one for a PS5
  • Gen5 drives are roughly twice as fast in sequential transfers
Full technical specifications & caveats (10 specs)

Reasons to buy

  • Among the fastest Gen4 drives
  • DRAM cache and 1200 TBW on the 2TB
  • Works in any PCIe 4.0 or 5.0 M.2 slot

Reasons to skip

  • This version has no heatsink: add one for a PS5
  • Gen5 drives are roughly twice as fast in sequential transfers
Samsung 990 PRO 2TB (MZ-V9P2T0B/AM) specifications
InterfacePCIe 4.0 x4 · NVMe 2.0 (Samsung)
Sequential read7450 MB/s (Samsung)
Sequential write6900 MB/s (Samsung)
Random read (4K)1.4M IOPS, QD32 (Samsung)
Random write (4K)1.55M IOPS, QD32 (Samsung)
DRAM cache2GB LPDDR4 (Samsung)
NANDSamsung V-NAND 3-bit MLC (TLC)
Endurance1200 TBW (Samsung)
Warranty5 years limited (Samsung)
Form factorM.2 2280, no heatsink (this model)
Best high-sustained-write NVMe alternative

Consistent TLC sustained writes for 4K video scratch pools

WD_BLACK SN850X 2TB with heatsink (WDS200T2XHE) · 2 of 4

PCIe 4.0 x4 · M.2 2280 · heatsink · 7,300 MB/s

7300MB/s read (SanDisk)
8.9mmHeight with heatsink
1200TBW endurance
5 yrsWarranty

Get it if Creators editing 4K footage directly off an NVMe storage pool who have sufficient M.2 slot clearance for an integrated heatsink.

Skip it if Your NAS M.2 bay sits underneath a tight metal cover that only accepts bare single-sided 2280 drives.

Reasons to buy

  • Heatsink fits the PS5 bay (Sony allows up to 11.25 mm)
  • Fast Gen4 speeds on the 2TB model
  • 1200 TBW and a 5-year warranty

Reasons to skip

  • The heatsink is wasted if your motherboard already has one
  • Gen4 speeds, not Gen5
Full technical specifications & caveats (9 specs)

Reasons to buy

  • Heatsink fits the PS5 bay (Sony allows up to 11.25 mm)
  • Fast Gen4 speeds on the 2TB model
  • 1200 TBW and a 5-year warranty

Reasons to skip

  • The heatsink is wasted if your motherboard already has one
  • Gen4 speeds, not Gen5
WD_BLACK SN850X 2TB with heatsink (WDS200T2XHE) specifications
InterfacePCIe 4.0 x4 NVMe (SanDisk)
Sequential read7300 MB/s (SanDisk, 2TB)
Sequential write6600 MB/s (SanDisk, 2TB)
Random read (4K)1.2M IOPS (SanDisk, 2TB)
Random write (4K)1.1M IOPS (SanDisk, 2TB)
Endurance1200 TBW (SanDisk, 2TB)
Warranty5 years limited (SanDisk)
Form factorM.2 2280 with heatsink · 8.9 mm tall (SanDisk datasheet)
Brand noteNow sold under SanDisk; the WD_BLACK line is becoming SANDISK Optimus (SanDisk, Jan 2026)
Best low-power NVMe for tight NAS bays

Cool-running single-sided PCIe 4.0 storage for unventilated slots

WD_BLACK SN7100 2TB (WDS200T4X0E) · 3 of 4

PCIe 4.0 x4 · M.2 2280 · DRAM-less · 7,250 MB/s

7250MB/s read (SanDisk)
Gen4PCIe 4.0 x4
1200TBW endurance
5 yrsWarranty

Get it if Compact 2-bay and 4-bay NAS enclosures with cramped M.2 slots where lower thermal output matters more than DRAM-buffered random writes.

Skip it if You run heavy multi-user database writes or continuous virtual machine snapshots.

Reasons to buy

  • Rated speeds close to the 990 PRO
  • 1200 TBW and a 5-year warranty on the 2TB
  • Good fit for laptop and budget-build upgrades

Reasons to skip

  • No DRAM cache: slower in heavy sustained random workloads
  • 2280 only, so it won't fit handhelds that take 2230 drives
Full technical specifications & caveats (11 specs)

Reasons to buy

  • Rated speeds close to the 990 PRO
  • 1200 TBW and a 5-year warranty on the 2TB
  • Good fit for laptop and budget-build upgrades

Reasons to skip

  • No DRAM cache: slower in heavy sustained random workloads
  • 2280 only, so it won't fit handhelds that take 2230 drives
WD_BLACK SN7100 2TB (WDS200T4X0E) specifications
InterfacePCIe 4.0 x4 · NVMe 2.0 (SanDisk)
Sequential read7250 MB/s (SanDisk, 2TB)
Sequential write6900 MB/s (SanDisk, 2TB)
Random read (4K)1.0M IOPS (SanDisk, 2TB)
Random write (4K)1.4M IOPS (SanDisk, 2TB)
DRAM cacheNone (uses host memory buffer, per Tom's Hardware)
NANDSanDisk 218-layer TLC (BiCS8, per Tom's Hardware)
Endurance1200 TBW (SanDisk, 2TB)
Warranty5 years limited (SanDisk)
Form factorM.2 2280, no heatsink
Brand noteBeing renamed SANDISK Optimus GX 7100 (SanDisk, Jan 2026)

Should you buy UGREEN NASync or Synology in 2026? Choose UGREEN NASync (such as the 4-bay DXP4800 Plus or 2-bay DXP2800) if you want modern Intel processors with QuickSync hardware video transcoding, built-in 2.5GbE and 10GbE Ethernet, an aluminum chassis, and unrestricted support for third-party NVMe SSDs like the Samsung 990 PRO 2TB. Choose Synology (DS923+ or DS423+) if turnkey DSM 7.2 software, SHR mixed-capacity drive arrays, and native cloud backup suites outweigh raw hardware specs.

Ecosystem / Component Processor & Transcoding Built-In Network Ports Operating System & RAID NVMe SSD Policy Best For
UGREEN NASync (DXP2800 / DXP4800 Plus) Intel N100 / Pentium Gold 8505 with QuickSync iGPU Dual 2.5GbE (DXP4800 Plus adds 10GbE) UGOS Pro (or bootable TrueNAS / Unraid) Open third-party M.2 NVMe cache and storage pools Plex/Jellyfin 4K transcoding, Docker, and multi-gig LAN
Synology Plus (DS423+ / DS923+) Intel Celeron J4125 (DS423+) or AMD Ryzen R1600 (DS923+, no iGPU) Dual 1GbE (DS923+ supports optional 10GbE module) Synology DSM 7.2 with Synology Hybrid RAID (SHR) Storage pools officially locked to Synology-branded NVMe Turnkey office backups, mixed drive sizes, and non-technical users
Samsung 990 PRO 2TB (NVMe Pick) Samsung Pascal controller with 2 GB LPDDR4 DRAM PCIe 4.0 x4 M.2 2280 Works as UGOS Pro NVMe pool or read/write cache Up to 1,200 TBW endurance rating Fast Docker appdata, Immich thumbnails, and SMB cache
TP-Link Archer BE550 (2.5GbE Router Pick) Tri-Band Wi-Fi 7 + multi-gig wired backplane 1x 2.5GbE WAN + 4x 2.5GbE LAN Standard web UI + EasyMesh N/A Eliminating the 115 MB/s 1GbE bottleneck to your NAS

How we evaluated home NAS ecosystems and NVMe storage

As a research-based hardware publication without an in-house lab bench, we evaluate NAS enclosures, NVMe cache drives, and multi-gig routers by comparing manufacturer engineering datasheets, PCIe lane allocations, network switch backplanes, and independent storage endurance data from TechPowerUp and StorageReview.

  • Network interface bottlenecks: A traditional 1GbE port caps real-world SMB file transfers at roughly 112 to 115 MB/s, which is slower than a single modern spinning hard drive. Standard 2.5GbE ports raise sequential throughput to roughly 280 MB/s when paired with a multi-gig router like the TP-Link Archer BE550.
  • Hardware transcoding & Docker flexibility: Intel QuickSync integrated graphics allow UGREEN NASync models to transcode multiple 4K HEVC streams in hardware without pegging CPU cores, whereas AMD-based Synology units rely on software transcoding or client-side direct play.
  • NVMe DRAM buffering & TBW endurance: NAS M.2 slots experience continuous small-block metadata writes from Docker containers and photo libraries, making DRAM-equippedTLC drives like the Samsung 990 PRO 2TB more consistent than QLC drives.
  • What we ruled out and honest cons: We ruled out DRAM-less QLC M.2 drives for write-caching because sustained transfers quickly exhaust their pseudo-SLC buffer. Honest cons to weigh: UGREEN’s UGOS Pro lacks a native equivalent to Synology Hybrid RAID (SHR) for mixing mismatched drive sizes, and its native backup apps are less mature than Synology Active Backup for Business. Conversely, Synology’s aging 1GbE ports and first-party NVMe storage-pool restrictions frustrate enthusiasts.

Why does UGREEN NASync beat Synology on hardware specs?

UGREEN NASync enclosures include 2.5GbE or 10GbE Ethernet ports, DDR5 or upgradable DDR4 memory, milled aluminum bodies, and Intel processors with QuickSync video engines as standard equipment. Comparable Synology Plus models still ship with 1GbE ports and older CPUs unless you purchase proprietary add-in network cards.

In addition, UGREEN leaves the BIOS unlocked on its Intel-based models so advanced users can boot TrueNAS Scale, Unraid, or Proxmox from an internal SSD while keeping the stock UGOS Pro system drive intact.

Why do offices and families still choose Synology DSM 7.2?

Synology DSM 7.2 remains the gold standard for non-technical households and small offices because Synology Hybrid RAID (SHR) lets you combine different hard drive capacities without wasting space, and packages like Active Backup for Business, Hyper Backup, and Synology Drive work reliably out of the box.

If you do not want to maintain Docker Compose files for photo backups or workstation image recovery, Synology’s software polish saves hours of administration time despite its slower 1GbE default networking.

Frequently asked questions

Can you use Samsung 990 PRO NVMe SSDs in a UGREEN NASync or Synology NAS?

UGREEN NASync officially supports third-party M.2 2280 NVMe SSDs like the Samsung 990 PRO 2TB and WD_BLACK SN850X for both read/write caching and dedicated all-flash storage pools. Synology DSM 7.2 allows third-party NVMe drives for cache, but restricts native M.2 storage volumes to Synology-branded SSDs without command-line scripts.

Do you need a 2.5GbE router or switch for a UGREEN NASync?

Yes, connecting a 2.5GbE NAS to a standard 1GbE router caps your file transfer speeds at roughly 115 MB/s. Upgrading to a multi-gig router such as the TP-Link Archer BE550, which includes five 2.5GbE ports, increases real-world SMB transfer speeds to around 280 MB/s over standard Cat5e or Cat6 cables.

Is UGREEN NASync good for Plex, Jellyfin, and Immich photo hosting?

Yes, UGREEN NASync models use Intel processors with integrated QuickSync media engines that support hardware-accelerated 4K HEVC and AV1 transcoding in Plex and Jellyfin. Storing your Docker containers and Immich database on an internal Samsung 990 PRO NVMe pool makes thumbnail scrolling and local AI facial recognition near-instantaneous.

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