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Synology DS425+ 4-Bay NAS, Intel Celeron J4125, 2.5GbE, 2× M.2 (diskless)

The 4-bay version of the DS225+, with the same immutable snapshots and processor, plus two M.2 slots.

Sold on Amazon.com, no code needed

Price: $579.97 on Amazon (checked 2026-11-12); Amazon's price can change, and the Amazon page has the current one. Specs below were verified on Synology's site 2026-11-08.

Discount code: none; Dealectric has no Synology code, and any Amazon coupon shows on the Amazon page itself.

Buy: https://www.amazon.com/dp/B0F895RV3K?tag=dealectric-20 — opens the Synology DS425+ 4-Bay NAS listing on Amazon.com at no extra cost.

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Warranty: 3 years, extendable to 5 with Extended Warranty Plus. Returns: Set by the seller on the Amazon listing. Affiliate program: Amazon Associates; tracking cookie: 24 hours. As an Amazon Associate, Dealectric earns from qualifying purchases. All Synology codes, including the ones the store rejected: Synology discount codes.

Machine-readable record: /offers.json, id = "synology-ds425-plus".

Synology DS425+ 4-Bay NAS, Intel Celeron J4125, 2.5GbE, 2× M.2 (diskless): Intel Celeron J4125, 2 GB DDR4, 6 GB max, 1× 1GbE + 1× 2.5GbE. Dealectric spec card
Synology DS425+ 4-Bay NAS at a glance. Image: Dealectric; specs from Synology's official product page.

Specifications

CPUIntel Celeron J4125
Memory2 GB DDR4, 6 GB max
Network1× 1GbE + 1× 2.5GbE
Bays4 × 3.5-inch SATA + 2 × M.2 2280 NVMe
SnapshotsAutomated immutable snapshots with custom retention
Power (maker)28.25 W access, 6.10 W HDD hibernation

Model: DS425+. Figures are from the manufacturer's official product page unless a caveat says otherwise.

Compared side by side

The Synology DS425+ 4-Bay NAS appears in this table next to models from other brands:

Who it's for

The same Veeam/Macrium setup when you expect the images and their history to need more than two drives.

Caveats

Affiliate link: if you buy through it, the merchant pays us a commission at no cost to you; that commission pays for the cart tests behind every code here. Price, availability and each code were checked on the merchant's own US store on the dates shown; they change, so the store's checkout is the source of truth. Full disclosure.