The claim in brief
Pande's case has four parts:
- Budget two-bay NAS boxes ship with weak CPUs and little RAM.
- Vendor operating systems and container tooling get in the way.
- A two-bay NAS has no separate boot drive.
- A used mini PC gives you more compute, a free choice of OS and usually an SSD.
He does concede one use for a cheap two-bay unit. It can serve as a remote or secondary backup node for a larger NAS, which fits a 3-2-1 backup plan.
What the spec sheets show
Synology's DS224+ is a good test case, because it is a popular two-bay model. It uses an Intel Celeron J4125 with four cores and four threads, and ships with 2 GB of DDR4 non-ECC memory. It can reach 6 GB by adding one optional 4 GB SO-DIMM. That backs up the "limited RAM" complaint for this model.
Independent coverage points to further limits:
- The DS224+ doesn't support M.2 2280 NVMe SSDs and has two 1GbE ports. That matches Pande's point about having no separate fast boot drive.
- The mariushosting site warns that Docker containers that need AVX support won't run on the DS224+. That is one reviewer's claim. Check it against the container images you actually plan to use.
- Synology's own datasheet lists Container Manager support. The DS224+ can run Docker-style containers, but it can't run everything.
Where the headline goes too far
"Worst way" is a sweeping claim, and two-bay NAS hardware varies a lot. UGREEN's DXP2800 is also a two-bay unit. Its product page lists an Intel N100 quad-core CPU, 8GB DDR5 RAM expandable to 16GB, and two M.2 NVMe slots, with Docker and virtual machine support in its UGOS software. That is far from the 1–2 GB ARM boxes Pande describes.
The catch is price. The same page lists the DXP2800 at $389.99 diskless. That puts it well above the sub-$200 range Pande was shopping in, so it doesn't rescue his point about cheap units. It does show that "two bays" doesn't determine capability. The exact model does.
Pande's other claims need caution:
- Warranty. He says NAS makers "would often void warranties" if you flash a different OS. I found no evidence that this is a general rule. Synology does say that it won't provide full warranty or technical support if non-Synology memory is used for expansion. That is a narrower condition. Check the terms for the exact brand and model before you reflash anything.
- Used mini PC specs. His claims about 8 GB of RAM, bundled SSDs and "well over a dozen containers" come from his own shopping and experience. They aren't benchmarked, and used-market stock varies widely. Treat them as a rough guide.
- The sub-$200 survey. His Amazon observations are from one person's search this summer. They aren't a market survey.
Why a mini PC still wins for experimenting
A general-purpose x86 box gives you a few practical advantages:
- Your choice of OS. You can install Debian, Ubuntu Server or Proxmox, and use standard Docker Engine with the Compose plugin.
- Easy recovery. If a stack breaks, you reinstall the OS and start again, with no vendor firmware in the way.
- A separate boot drive. Many mini PCs have an M.2 slot, so the OS can sit on an SSD while data sits on other drives. Check this for the specific model.
- Better value for compute. Used business desktops and thin clients often cost less than a NAS with comparable CPU and RAM. Do the sums with the drives included.
Buying checklist
- Match RAM to your plan. Proxmox's requirements say ZFS or Ceph need extra memory, roughly 1 GB per TB of used storage. That doesn't apply to plain Docker, but it matters if you want ZFS.
- Confirm the boot drive. Check for M.2 or SATA SSD support, and for a free 2.5-inch bay if you want extra storage.
- Check the CPU instruction set. Some images need AVX, and older Celeron chips lack it.
- Price the whole build. Add RAM, SSD and data drives to the headline price. A diskless NAS needs drives too.
- Check idle power. Synology lists the DS224+ at 15 watts under full operation. A used desktop-class mini PC may draw more or less. Look up measured idle figures for your exact model.
- Verify the used machine. Check storage health, fan condition and BIOS support before you rely on it.
The backup role
Pande's best point is that a cheap two-bay NAS can work as a backup target. Synology's DS224+ launch materials list Synology NAS backup among its capabilities. A second device at the same address is still not an independent backup, though. For 3-2-1, keep three copies of your data on two kinds of media, with one copy off-site. Two drives in one enclosure protect against a single drive failure. They don't protect against fire, theft, ransomware or accidental deletion.
Bottom line
A used mini PC is often the better first home server if your goal is to learn Docker, Linux or virtualization, because you get an open platform and more compute per dollar. A two-bay NAS suits you better if you want simple network storage, backups and a quiet always-on box. It can also run some containers. The "worst way" framing holds for the cheapest, lowest-spec units, and it breaks down for higher-spec models. Compare the exact CPU, RAM, boot options, software support and total cost before you buy either.