Synology walks back controversial compatibility policy for 2025 NAS units — third-party HDD and SSD support returns with DiskStation Manager 7.3 update

The Synology DiskStation DS925+ and DX525 NAS units placed on a desk
(Image credit: Synology)

Synology has backtracked on its controversial self-branded drives-only policy, restoring the ability to use third-party and certified HDDs and SSDs on its 2025 Plus series NAS units. With the launch of its latest DiskStation Manager 7.3, users can once again use 3.5-inch hard drives and 2.5-inch SATA SSDs from brands like Western Digital and Seagate, without losing out on crucial features.

Earlier this year, the company had restricted core functionality for third-party and non-certified drives, including support for storage pools, health monitoring, deduplication, and firmware updates. The company made Synology-branded and Synology-certified drives compulsory, claiming that users of the Plus series NAS models would benefit from higher performance, increased reliability, and more efficient support.

In a way, the company forced users to rely solely on Synology-branded disks to unlock full capabilities. This reportedly resulted in community backlash, which eventually allowed rival brands to take advantage and promote their own hardware as more open and flexible alternatives.

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Kunal Khullar
News Contributor

Kunal Khullar is a contributing writer at Tom’s Hardware.  He is a long time technology journalist and reviewer specializing in PC components and peripherals, and welcomes any and every question around building a PC.

  • bit_user
    Did they get confused and think they were Dell, or something?
    Reply
  • DS426
    bit_user said:
    Did they get confused and think they were Dell, or something?
    I guess so, lol!

    Glad to hear they walked it back.
    Reply
  • Blastomonas
    Disgusting practice. Things like this really put me off a brand.
    Reply
  • Mindstab Thrull
    I think the smarter move would be that instead of only allowing your own products to be used, you get a benefit if you do use them - a service at a discounted price, a nice-to-have-but-not-necessary bonus feature, or the like. Something to thank a customer for choosing your version rather than someone else's. Basically, applying a carrot rather than a stick.

    Mindstab Thrull
    Nomming ur sanities since 1864 BSE (before the Sarpadian Empires)
    Reply
  • Notton
    Synology in the finding out phase.
    It's like they thought their only competition was QNAP, and never realized Asustor, Terramaster, and UGreen existed.
    Reply
  • heffeque
    They definitely found out.
    There were several decisions done recently that have pushed people too far, this HDD lock being just one of them.

    A couple of years ago, in Reddit's Synology group, you'd barely see anyone recommending other brands.
    Now there are tons of people advising to steer away from Synology.
    People that have been buying Synology for years that have had enough and will now go to Ugreen, etc., or build their own NAS.

    Myself I have 2 Synology NAS, and I will be leaving Synology when my main one breaks (or OS support ends, which in my case will be in 2 to 4 years it seems).
    Reply
  • bit_user
    heffeque said:
    People that have been buying Synology for years that have had enough and will now go to Ugreen, etc., or build their own NAS.
    I went the DIY route. I think the cheapest you can do it is probably to use something like ODROID H4 Plus, which is based on Intel N97 and supports in-band ECC. It only has a 2.5 Gigabit Ethernet, but that's fine for 4x hard drives (which is the number of SATA ports it has). I'd get the mini-ITX adapter kit and then use a suitable mini-ITX case. They sell their own cases for it, but I don't care for any of those.
    https://www.hardkernel.com/shop/odroid-h4-plus/
    FWIW, I'm actually using an ASRock Rack X570D4U-2L2T with a Ryzen 5800X, but I've come to feel the BMC is more trouble than it's worth and I really don't need that much CPU horsepower. My system is currently plugged into a 2.5 Gigabit port on my switch, even though the board supports up to 10 Gigabits.
    Reply
  • Ogotai
    my only complaint up till the hdd thing, was not really being able to use non synology fans. one of my nas's would complain about it with error messages " the system fans have stopped " " the system fans have started " every few seconds... synology suggested fans, were at least twice the price of other fans.. even noctua fans...
    Reply
  • FunFast
    Too late for me. As soon as they started down this path I crossed Synology off my list of companies I want to buy from. I have an old WD NAS, a DIY TrueNAS and am in the market for a new NAS to replace the old WD. Synology was the top of my list until I saw they restricted hardware.

    I'm all for buying well integrated solutions, but not if it comes with intentional lack of compatibility that limits the use of commodity hardware now and in the future for repairs. I'm glad they realized they went too far ... but I'm not sure if they are changing direction, or just waiting to find another way to limit hardware selection.
    Reply