Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Synology › Network Attached Storage
Synology
Synology 4-bay DiskStation DS425+ (Diskless)

Synology 4-bay DiskStation DS425+ (Diskless)

4.8(6 ratings)

Best price now

$579.97at AmazonObserved at 6:24 AM

Compared across 12 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Visit Amazon

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $579.97 at Amazon (checked Nov 9, 2026).
  • Checked at 12 stores.

Our take on the Synology 4-bay DiskStation DS425+ (Diskless)

The DS425+ is a four-bay desktop NAS built around an Intel Celeron J4125 with 2 GB of DDR4, expandable to 6 GB. It stands out for mixing four hot-swappable 3.5-inch or 2.5-inch bays with two M.2 NVMe slots, one of which can host a volume, plus a 2.5GbE port alongside 1GbE. That puts it ahead of older four-bay units on network speed, but 2 GB of RAM is thin for heavy multitasking and the Celeron is modest next to newer Ryzen-based NAS boxes. It suits home and small-office users who want private cloud storage, backups and media serving with room to grow.

Best forHome and small-office file storage and backupPrivate cloud and photo backupMedia library and streamingUsers who want NVMe cache or a fast M.2 volume
Pros
  • Four hot-swappable bays with RAID 0/1/5/6/10 support
  • 2.5GbE port for faster transfers than 1GbE rivals
  • Two M.2 NVMe slots, one usable as a storage volume
  • Compact 166 × 199 × 223 mm chassis
  • Synology DSM software with broad app support
Cons
  • Only 2 GB RAM out of the box; 6 GB maximum
  • Celeron J4125 trails newer NAS processors
  • Single 2.5GbE and single 1GbE port, no link aggregation
  • No 10GbE option
  • Diskless, so drives add to the total outlay

Synology 4-bay DiskStation DS425+ (Diskless) prices at every store

  • WalmartNew

    In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $589.99Free shippingObserved at 6:24 AM
    Visit Walmart
  • Best BuyNew

    In stock

    $599.99Free shippingObserved at 6:25 AM
    Visit Best Buy
  • Newegg.comNew

    In stock

    $599.99Free shippingObserved at 6:25 AM
    Visit Newegg.com
  • Central ComputersNew

    In stock

    $599.99+ $46.70 shippingObserved at 6:25 AM
    Visit Central Computers
  • AntonlineNew

    In stock

    $667.54Free shippingObserved at 6:24 AM
    Visit Antonline
  • CDWNew

    In stock

    $719.99+ $180.00 shippingObserved at 6:25 AM
    Visit CDW
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $579.97Free shippingObserved at 6:24 AM
    Visit Amazon
  • B&H Photo-Video-AudioNew

    Availability unknown

    $579.99Observed at 6:25 AM
    Visit B&H Photo-Video-Audio
  • AdoramaNew

    Availability unknown

    $599.99Observed at 6:25 AM
    Visit Adorama
  • eBayNew

    Availability unknownSold by newegg

    $601.99Observed at 6:25 AM
    Visit eBay
  • ConnectionNew

    Availability unknown

    $690.87Observed at 6:25 AM
    Visit Connection
  • Micro CenterNew

    Availability unknown

    $769.99Observed at 6:25 AM
    Visit Micro Center

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

Synology 4-bay DiskStation DS425+ (Diskless) price history

Lowest price we've seen: $579.97 on Nov 9 at Amazon. Tracked across 12 stores since Nov 9.

What reviewers say

Owners of the DS425+ line praise the build, the DSM software and the jump to 2.5GbE networking. Many say the stock 2 GB of RAM is the first thing to upgrade, and some find the Celeron limits heavier virtualization and transcoding.

What people mention
  • MemoryCriticisedOwners say 2 GB of RAM is tight and often upgrade to the 6 GB maximum early.
  • SoftwarePraisedDSM is called polished and easy to set up, with a wide app catalog.
  • Network speedPraisedThe 2.5GbE port is reported to make large file transfers much faster than 1GbE.
  • ProcessorMixedThe Celeron J4125 handles file serving and backups well but feels slow for virtualization and transcoding.
  • BuildPraisedThe compact chassis and hot-swap trays are described as solid and easy to work with.
  • PortsMixedSome wish for a second 2.5GbE port or 10GbE for link aggregation and faster networking.

About the Synology 4-bay DiskStation DS425+ (Diskless)

DiskStation DS425+ A compact storage hub with 100% data ownership

Specifications

size
N/ASource
RAID Level
RAID 0, RAID 1, RAID 5, RAID 6, RAID 1+0
Without Hard Drive
Yes
Hot Swappable
Yes
Type
NAS
Network Connectivity
Gigabit Ethernet, 10/100 Ethernet
Personal Cloud Storage

Questions and answers

Is the DS425+ worth it over a two-bay NAS?
If you want RAID 5 or 6 protection and room to add drives, the four bays justify it. Two-bay units are cheaper but leave less room for growth and redundancy.
Do I need to upgrade the RAM?
For basic file sharing and backups, 2 GB is workable. If you plan to run Docker containers, virtual machines or many apps at once, plan on adding a 4 GB module to reach the 6 GB maximum.
Can I use the M.2 slots for storage, not just cache?
Yes. One M.2 2280 NVMe slot can be configured as a storage volume, while the other is typically used for cache. Both accept standard NVMe drives.
What drives fit in the DS425+?
It takes four 3.5-inch SATA hard drives or 2.5-inch SATA SSDs in hot-swappable trays. Synology's own HAT and Plus-series drives are validated, but most standard SATA drives work.
Does it support Plex hardware transcoding?
The Celeron J4125 has integrated graphics with Quick Sync, so hardware transcoding works in supported apps. Check the current DSM and Plex compatibility notes, since support varies by version.
What is in the box?
The diskless unit ships with the NAS, an external power adapter, an Ethernet cable, drive screws and a quick start guide. Hard drives are not included.
Where is the Synology 4-bay DiskStation DS425+ (Diskless) cheapest?
At Amazon, for $579.97, as of our latest check.
What do buyers say about the Synology 4-bay DiskStation DS425+ (Diskless)?
Rated 4.8 out of 5 from 6 ratings.
Where can I buy the Synology 4-bay DiskStation DS425+ (Diskless)?
12 stores we checked sell it, including Best Buy, Adorama, Newegg.com, B&H Photo-Video-Audio, Central Computers.

Shoppers also compared

  • M
    Minisforum MS-01
    Minisforum MS-01
  • M
    MINISFORUM MS-A1
    MINISFORUM MS-A1
  • B
    Beelink SER8
    Beelink SER8
  • Z
    ZimaBoard 2
    ZimaBoard 2
  • G
    GMKtec Nucbox G3S
    GMKtec Nucbox G3S
  • M
    MINISFORUM MS-A2
    MINISFORUM MS-A2
  • B
    Beelink Mini S12 Pro
    Beelink Mini S12 Pro
  • B
    Beelink EQ12
    Beelink EQ12

Buying guides that pick the Synology 4-bay DiskStation DS425+ (Diskless)

  • Best home lab servers

Stores we've priced the Synology 4-bay DiskStation DS425+ (Diskless) at

  • Adorama deals and prices
  • Best Buy deals and prices
  • bhphotovideo.com deals and prices
  • CDW deals and prices
  • Connection deals and prices
  • Micro Center deals and prices
  • Newegg deals and prices
  • Walmart deals and prices

More from Synology

  • S
    Synology BeeStation
    Synology BeeStation
  • S
    Synology DiskStation DS224+
    Synology DiskStation DS224+
  • S
    Synology DiskStation DS923+
    Synology DiskStation DS923+
  • S
    Synology DiskStation DS923+ 4-Bay NAS Enclosure (Diskless)
    Synology DiskStation DS923+ 4-Bay NAS Enclosure (Diskless)
  • S
    Synology 4-bay DiskStation DS925+
    Synology 4-bay DiskStation DS925+
  • S
    Synology DiskStation DS225+ SAN/NAS Storage System
    Synology DiskStation DS225+ SAN/NAS Storage System
  • S
    Synology 2-bay DiskStation DS223j (Diskless)
    Synology 2-bay DiskStation DS223j (Diskless)
  • S
    Synology 1-bay DiskStation DS124 (Diskless)
    Synology 1-bay DiskStation DS124 (Diskless)
All Synology deals and products →

More nas enclosures

  • Q
    QNAP TS-464
    QNAP TS-464
  • T
    TerraMaster F4-424 Pro
    TerraMaster F4-424 Pro
  • U
    UGREEN NASync DH2300 2-Bay Network Attached Storage
    UGREEN NASync DH2300 2-Bay Network Attached Storage
  • S
    Synology DiskStation DS223 Diskless SAN/NAS Storage System
    Synology DiskStation DS223 Diskless SAN/NAS Storage System
  • S
    Synology 5-bay DiskStation DS1525+
    Synology 5-bay DiskStation DS1525+
  • U
    UGREEN iDXP6011-64G 6-Bay Thunderbolt 4 Desktop AI NAS Enclosure
    UGREEN iDXP6011-64G 6-Bay Thunderbolt 4 Desktop AI NAS Enclosure
  • T
    TerraMaster F2-423 2-Bay NAS
    TerraMaster F2-423 2-Bay NAS
  • Q
    QNAP TS-131K NAS
    QNAP TS-131K NAS
Yes
Installed RAM
2 GB RAM
CPU model
Intel Celeron J4125Source
CPU cores
4Source
CPU frequency
2.0 (base) / 2.7 (turbo) GHzSource
System memory
2 GB DDR4 non-ECCSource
Maximum memory
6 GB (2 GB + 4 GB)Source
Drive bays
4 × 3.5" SATA HDD or 2.5" SATA SSDSource
M.2 slots
2 × M.2 2280 NVMe SSDSource
1GbE LAN ports
1Source
2.5GbE LAN ports
1Source
USB ports
2Source
Dimensions
166 mm × 199 mm × 223 mmSource
Weight
2.18 kgSource