Best NAS for Singapore SMEs in 2026: Synology vs QNAP vs ASUSTOR

Most Singapore SMEs arrive at a NAS the same way: a shared drive that has outgrown Google Drive or Dropbox, a stack of external disks nobody trusts, or an auditor asking where the backups are. A network-attached storage box solves all three, but only if it is sized and configured properly on day one. This guide sets out how we would choose one for a 5 to 50 person office in 2026.

Start with the job, not the brand

Before comparing models, write down what the NAS has to do. For most offices it is some mix of four jobs:

• File sharing with proper per-user and per-department permissions.
• Backup target for PCs, laptops, Microsoft 365 mailboxes and servers.
• Surveillance recording for IP cameras.
• Light application hosting: containers, a small database, a virtual machine.

File sharing and backup are light work that almost any current business NAS handles. Surveillance and virtualisation are what push you up the range, because they need more CPU, more RAM and more drive bays running at the same time.

How many bays do you need?

Bays matter more than processor. A NAS protects data by spreading it across drives with RAID, and protection costs capacity. Using 8TB drives as an example:

Our rule of thumb: a two-bay unit is for a team of five or fewer; a four- or five-bay unit is the sweet spot for most SMEs, because it lets you run RAID 5 or 6 and still add capacity later. Buy one size larger than today's need. Storage requirements in a growing company roughly double every two to three years, and replacing a full NAS is far more disruptive than buying a bigger one up front.

Synology vs QNAP vs ASUSTOR

All three run their own operating system on similar Intel or AMD hardware, so the choice is mostly about software and how your team likes to work.

Synology: the easiest to run

Synology's DSM is the most polished of the three and the one we see non-specialist IT staff manage most comfortably. Its biggest business draw is Active Backup for Business, which backs up Windows PCs, servers, VMware and Microsoft 365 with no per-device licence fee. Models such as the DS925+ (four bays, expandable to nine) and the DS1525+ (five bays, expandable to fifteen) cover most office needs, with the DS225+ for very small teams.

A point that confused many buyers in 2025: Synology briefly restricted its 2025 Plus models to Synology-branded drives. That policy was reversed with DSM 7.3, which restored support for third-party hard drives and 2.5-inch SATA SSDs on 2025 Plus, Value and J series models. If you buy one of these, update to DSM 7.3 or later first.

QNAP: more hardware for the money

QNAP tends to give you more hardware at a given price, such as PCIe slots, HDMI output and more RAM, and its QuTS hero option brings the ZFS file system for teams that want inline data integrity checks. The TS-464, with dual 2.5GbE, two M.2 slots and a PCIe slot, is a good example. The trade-off is a busier interface, and you need to be diligent about applying firmware updates.

ASUSTOR: value and multimedia

ASUSTOR sits between the two: competitive pricing, solid hardware, and a simpler app ecosystem. It suits offices whose main need is file sharing and backup and who would like more bays per dollar. See our ASUSTOR NAS range.

Choose the right drives

Desktop hard drives are not built to run 24/7 alongside other drives vibrating in the same chassis. Use NAS-rated drives:

• Seagate IronWolf for small office NAS units with light workloads.
• Seagate IronWolf Pro for multi-user offices, surveillance and larger RAID arrays.
• Seagate Exos enterprise drives for rackmount NAS and heavy, always-on workloads.

Buy all the drives for an array at the same time and in the same capacity, and keep one spare on the shelf. When a drive fails at 2am, the rebuild should start that morning, not after a week of sourcing.

A NAS is not a backup on its own

RAID protects against a failed drive. It does not protect against ransomware, accidental deletion, fire or theft. Follow the 3-2-1 rule: three copies of important data, on two different types of media, with one copy off-site. In practice that means turning on immutable snapshots on the NAS and replicating to a second NAS at another site or to a cloud target. Synology's backup and data protection range is a good place to start.

Network: 2.5GbE is the new baseline

Most current business NAS models ship with 2.5GbE ports. To benefit, the switch they connect to needs 2.5GbE ports too. 10GbE is only worth it when several people move large files at once, such as video editing, CAD or VM storage, and the network is 10GbE end to end.

Our shortlist by office size

Frequently asked questions

Can I use any hard drive in a 2025 Synology NAS?

With DSM 7.3 or later, 2025 Plus, Value and J series models again accept third-party SATA hard drives and 2.5-inch SSDs. M.2 NVMe drives still need to be on Synology's compatibility list for some features. Always check the model's compatibility list before buying drives.

Is a NAS cheaper than cloud storage?

For a team storing several terabytes, a NAS is usually cheaper over three to five years, because you pay once instead of per user per month. Cloud remains the better choice for teams with no IT support and very little data. Many offices use both: the NAS for fast local access and backups, and the cloud as the off-site copy.

How long does a business NAS last?

Plan on five years for the NAS itself and three to five years for drives, depending on workload. Drives are the parts most likely to fail, so monitor their health reports and replace them proactively.

Browse the full Synology, QNAP and ASUSTOR ranges. All come with local Singapore warranty and a GST invoice.