Buying & comparison
Synology vs UGREEN vs DIY NAS in 2026
Compare the Synology DS925+, UGREEN DXP4800 Plus and a DIY NAS by drive support, storage connections, software, networking and recovery needs.
Who this is for
A home NAS is a storage and recovery decision before it is a CPU comparison. This guide compares the Synology DS925+, UGREEN DXP4800 Plus and a DIY Intel N100/N305 build. They differ in their included hardware, applications and who maintains them. Use the capacity planner to size usable storage and the backup builder to plan a separate recoverable copy. No hardware performance or price ranking is implied by the specifications below.
Bottom line
Choose the DS925+ if its DSM applications, ECC memory and dual 2.5GbE match your needs. Choose the DXP4800 Plus if you need its built-in 10GbE, Intel graphics or greater documented RAM capacity and have checked the UGOS applications you will use. Choose DIY if you want to own the storage layout and operating system, and can provide suitable disk connections and maintenance. Compare complete builds including drives, RAM, network upgrades, power and backup; a low mini-PC price is not the cost of a finished NAS.
Before you order
- Write down usable capacity now and in three years, the number of bays, and the separate backup destination. RAID capacity is not raw capacity or a backup.
- Check the exact NAS model, installed OS version and HDD/SSD part numbers against its current compatibility policy. SATA and M.2 rules can differ.
- List the applications you need and verify their backup, restore and migration support on the chosen OS before ordering.
- For DIY, draw the disk connections: direct SATA or an appropriate HBA, boot storage, cooling, power and expansion. A USB enclosure is not automatically a reliable multi-disk ZFS design.
- Compare the complete regional quote, including drives, RAM, switches/NICs, UPS and an off-site copy. Plan who will restore it if the original box fails.
How to choose
- Applications and recovery
- Compare the specific DSM, UGOS, TrueNAS or Unraid applications you need, including how to export configuration and restore data to replacement hardware. A feature list alone does not establish that your migration or backup workflow works.
- Drive compatibility and OS version
- DSM 7.3 relaxed third-party SATA HDD and 2.5-inch SATA SSD pool creation on affected models. M.2 pool/cache rules and explicitly incompatible drives still need the exact model policy. UGREEN advertises broad third-party support; verify form factor, capacity and its compatibility information rather than assuming any existing drive will work.
- Disk connections and expansion
- DS925+ has four SATA bays and can expand to nine with DX525. DXP4800 Plus has four SATA bays and two M.2 slots. A DIY mini-PC may have no multi-drive SATA connectivity: budget a suitable board/chassis/HBA or keep a separate storage NAS. Capacity depends on supported drive SKUs, array layout and reserve space.
- Memory and integrity
- DS925+ specifies 4 GB ECC, up to 32 GB; DXP4800 Plus specifies 8 GB DDR5, up to 64 GB. Intel lists 16 GB maximum memory for N100/N305 processors; check the board vendor’s validated configurations. ECC and filesystem checksums reduce particular failure risks; neither replaces a tested separate backup.
- Network and media workload
- DS925+ has two 2.5GbE ports and no PCIe 10GbE upgrade. DXP4800 Plus includes 10GbE plus 2.5GbE. Faster links also require appropriate client NICs and switches. For media, check the exact CPU/GPU and application support using the transcoding guide.
- Complete cost and support
- Include disks, boot storage, memory, networking, OS licensing, backup and replacement parts. DIY makes you responsible for integration and updates; vendor hardware support does not cover every third-party app or replacement OS.
The options
These are specific examples, not claims about every model from a brand. DS925+ uses Ryzen V1500B; the Intel J4125-based DS425+ has a different media capability. Compare the exact model rather than the year or Plus badge.
Synology DS925+
SynologyA four-bay DSM appliance with Ryzen V1500B, ECC RAM, dual 2.5GbE and DX525 expansion.
Best for
Homes using DSM backup, photo or surveillance applications whose storage and network needs fit this exact model.
Watch-outs
No integrated GPU or PCIe 10GbE upgrade. Check drive policy for your DSM version and exact SATA/M.2 SKU. DS923+ uses a different Ryzen CPU; do not treat the two generations as the same processor.
| Spec | Value | Verification |
|---|---|---|
| Bays | 4 × 3.5"/2.5" SATA + 2 × M.2 2280 NVMe; expandable to 9 bays with a DX525 | Manufacturer-confirmedsource |
| CPU | AMD Ryzen V1500B — 4 cores / 8 threads, 2.2 GHz | Manufacturer-confirmedsource |
| RAM (stock / max) | 4 GB DDR4 ECC SODIMM stock; max 32 GB (2 × 16 GB) — ECC | Manufacturer-confirmedsource |
| Network | 2 × 2.5GbE RJ-45 (no PCIe slot, no 10GbE option); USB-C expansion port for the DX525 | Manufacturer-confirmedsource |
| Capacity planning | Four internal SATA drives, or nine with DX525. Multiply supported drive capacity for raw space, then account for parity, filesystem overhead and free space; quoted raw examples are not a permanent capacity ceiling. | Manufacturer-confirmedsource |
| Drive compatibility policy | DSM 7.3 permits third-party SATA HDD/2.5-inch SATA SSD pool creation on affected models; check model-specific policy, explicitly incompatible drives and listed M.2 requirements. | Manufacturer-confirmedsource |
UGREEN NASync DXP4800 Plus
UGREENA four-bay Intel-based UGOS Pro appliance with built-in 10GbE and 2.5GbE.
Best for
Buyers who need the documented networking or memory expansion and have verified their required applications and drives.
Watch-outs
Check UGOS application support, recovery procedures and the current compatibility list. Replacing the supplied OS is a separate integration/support decision; official hardware specifications do not verify a third-party OS install.
| Spec | Value | Verification |
|---|---|---|
| Bays | 4 × SATA + 2 × M.2 NVMe SSD slots | Manufacturer-confirmedsource |
| CPU | Intel Pentium Gold 8505 (12th Gen) — 5 cores / 6 threads, up to 4.4 GHz | Manufacturer-confirmedsource |
| RAM (stock / max) | 8 GB DDR5 stock; expandable to 64 GB DDR5 (non-ECC) | Manufacturer-confirmedsource |
| Network | 1 × 10GbE + 1 × 2.5GbE (both RJ-45) | Manufacturer-confirmedsource |
| Operating system | UGOS Pro is the supplied operating system. | Manufacturer-confirmedsource |
| Drive compatibility policy | Broad third-party HDD/SSD support is advertised. Confirm the exact drive part number, form factor and capacity for this model; broad support is not universal compatibility. | Manufacturer-confirmedsource |
DIY: mini-PC + TrueNAS or Unraid
DIY / open sourceA self-managed storage build; a mini-PC can also be an application host beside a separate NAS.
Best for
Operators prepared to design disk connectivity, maintain the OS and rehearse replacement-hardware recovery.
Watch-outs
Many mini-PCs lack direct connections for several HDDs. Verify PCIe/SATA lanes, HBA support, power, cooling and boot storage before buying. Unraid parity drives must be at least as large as the largest data drive; mixed drive sizes do not mean unrestricted expansion.
| Spec | Value | Verification |
|---|---|---|
| Representative CPU (entry) | Intel N100: 4 cores / 4 threads; 6 W processor TDP. Whole-system power depends on board, disks, memory and workload. | Manufacturer-confirmedsource |
| Step-up CPU (more apps/VMs) | Intel Core i3-N305: 8 cores / 8 threads; 15 W processor TDP, not measured whole-system idle power. | Manufacturer-confirmedsource |
| Memory ceiling | Intel specifies 16 GB maximum, single-channel, non-ECC for N100/N305. Verify supported memory with the specific board vendor. | Manufacturer-confirmedsource |
| NAS OS (free, ZFS) | TrueNAS Community Edition — free, OpenZFS: snapshots, replication, RAID-Z, self-healing checksums, Docker + VMs | Manufacturer-confirmedsource |
| NAS OS (paid, mixed drives) | Unraid — paid, tiered, perpetual license; mixed-size parity array (add any-size disk later) and a strong Docker/VM app server | Manufacturer-confirmedsource |
| Drive freedom | TrueNAS requires suitable supported hardware and direct visibility of storage devices. Verify controller, disk and enclosure support rather than relying on a brand-independent promise. | Manufacturer-confirmedsource |
| Media transcoding | N100/N305 graphics support hardware video acceleration; codecs and application/container configuration must be checked separately. | Researchedsource |
Pick by use case
DSM applications and ECC with four bays
→ Synology DS925+. Its specified hardware and DSM ecosystem fit this requirement; verify the exact applications and drives.
Built-in 10GbE and Intel graphics in a four-bay appliance
→ UGREEN NASync DXP4800 Plus. The ports and processor are included. Confirm client networking, UGOS workflow and media acceleration setup.
Custom storage layout and control of OS maintenance
→ DIY: mini-PC + TrueNAS or Unraid. You can select the components, but must budget suitable storage connections, backup and replacement-hardware recovery.
Run the numbers
Turn the decision into a calculation before you buy — size the capacity, the backup, and the UPS for your exact setup.
NAS storage and backup planner
Plan NAS usable capacity, parity vs cache behavior, daily-change headroom, and offsite copy gaps before buying drives or restructuring an array.
Backup plan builder
Score a home backup plan against 3-2-1, immutability, RPO/RTO, and ransomware-resistance — and get a concrete next-step list.
UPS runtime estimator
Estimate UPS runtime with chemistry-aware capacity math, SoC headroom, LFP cold-lockout warnings, and annual idle electricity cost.
Related runbooks
How we verified this guide
2026-09-27 · Reviewed by HomeTechOps. Source-reviewed against current Synology, UGREEN, Intel and stable TrueNAS documentation on 2026-09-27. Specifications are model-specific; no hands-on NAS benchmark, total-cost winner or guaranteed third-party compatibility is claimed. Usable capacity and recovery depend on the actual build.
Source-backed checks
HomeTechOps turns official docs and conservative safety rules into a shorter runbook. These links are the source trail for the page direction.
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