Best QNAP 4-Bay NAS in 2026: 5 Picks by Budget and Use

The best QNAP 4-bay NAS for most homes and small offices in 2026 is the TS-464: an Intel Celeron N5095 with 8GB of memory, two 2.5GbE ports, M.2 slots for SSD caching and a PCIe slot for 10GbE. The TS-433 is the budget pick for plain file storage, the TS-453E adds dual HDMI and a Celeron J6412 for local playback, the TS-473A suits people who want a Ryzen CPU and two PCIe slots, and the TVS-h474 is for those who want ZFS data integrity with room to grow.

Our top picks

Top pickQNAP TS-464-8G-US 4 Bay Desktop NAS

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Also greatQNAP TS-473A-8G-US 4 Bay Desktop NAS

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Also greatQNAP TS-462A-4G 4-Bay Desktop NAS

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Also greatQNAP TS-433-4G-US 4 Bay NAS

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Quick comparison of the five picks

Specifications are taken from QNAP’s own product and specification pages and from retailer listings. QNAP sometimes sells several memory variants of the same chassis, so confirm the SKU before buying.

Why a 4-bay QNAP makes sense

Four drive bays are the practical middle of the market. With four drives you can run RAID 5, which survives one drive failure and gives you three drives of usable space, or RAID 6 and RAID 10, which trade capacity for extra protection. Two-bay units force you into mirroring, and six- or eight-bay units cost more, draw more power and take more room. QNAP builds the widest range in this class, from simple Arm boxes to Ryzen and ZFS systems, so you can pay only for the features you will use.

QNAP’s QTS operating system also offers a lot of software: snapshots, Hybrid Backup Sync for cloud and local copies, virtualization, Container Station for Docker, and apps for photos and media. The price of that breadth is a denser interface than some rivals, so it rewards users who like to tune settings.

Best budget: QNAP TS-433

The TS-433 uses a four-core Arm Cortex-A55 CPU at 2.0 GHz with 4GB of non-upgradable memory and four 3.5-inch SATA bays. Networking is one 2.5GbE port and one 1GbE port. It has no M.2 slots, no HDMI and no PCIe expansion, according to QNAP’s hardware specification page.

Who it suits: households and small teams that need a safe place for files, computer backups and a Time Machine target, and do not plan to run virtual machines or heavy media transcoding.

Trade-off: Plex hardware acceleration is not established on this model, so choose an Intel model if you plan to stream converted video. The fixed memory and lack of expansion slots also limit how far it can grow.

Best for local playback: QNAP TS-453E

The TS-453E is built on an Intel Celeron J6412 with 8GB of on-board DDR4, two 2.5GbE ports, two M.2 NVMe slots and dual 4K HDMI outputs. That makes it more of a media and general-purpose server than the Arm model.

Who it suits: users who want to connect the NAS directly to a television or monitor, use it for light virtual machines, or run Docker containers alongside their file storage.

Trade-off: the on-board memory is soldered, and the model lacks the PCIe slot of the TS-464, so faster than 2.5GbE networking is not possible. If you may want 10GbE later, step up to the TS-464 or TS-473A.

Best overall: QNAP TS-464

QNAP’s own lineup guidance positions the TS-464 as its best all-round 4-bay model. It has a quad-core Celeron N5095 that bursts to 2.9 GHz, 8GB of DDR4 expandable to 16GB, up to 72TB of storage capacity, and support for up to 4TB of M.2 SSD cache. Two 2.5GbE ports can be trunked for transfers of up to about 589 MB/s in QNAP’s measurements, and it includes an HDMI output and a PCIe Gen 3 x2 slot that accepts compatible 5GbE and 10GbE cards.

Who it suits: most families, creative freelancers and small offices. It handles file sharing, backups for several computers, Plex with Intel graphics acceleration and a handful of containers without strain.

Trade-off: the CPU is entry-level, so heavy virtual machines or many simultaneous transcodes will push it hard. The PCIe slot is only Gen 3 x2, which caps a 10GbE card below full line rate.

Best for power users: QNAP TS-473A

The TS-473A pairs an AMD Ryzen Embedded V1500B (four cores, eight threads, 2.2 GHz) with 8GB of DDR4 ECC memory that can be expanded to 64GB, two 2.5GbE ports, two M.2 Gen 3 slots and two PCIe Gen 3 slots. QNAP says it supports entry-level NVIDIA graphics cards, which opens up AI and transcoding workloads for those who need them. It runs QTS and can also switch to the ZFS-based QuTS hero.

Who it suits: technical users running virtual machines, large Docker stacks or video surveillance, and anyone who needs ECC memory.

Trade-off: the V1500B has no integrated graphics, so media transcoding needs an added GPU. It is a mature design rather than the newest silicon, and it costs more than the Celeron models.

Best for ZFS and growth: QNAP TVS-h474

The TVS-h474 uses an Intel Pentium Gold G7400 (two cores, four threads, 3.7 GHz) with 8GB of SODIMM memory, expandable to 128GB. It runs QuTS hero on ZFS and supports inline deduplication, compression and compaction. PCIe Gen 4 slots take 10GbE or 25GbE adapters, and M.2 NVMe slots allow caching or all-flash pools.

Who it suits: small businesses with databases, virtual machine storage or large numbers of snapshots, as well as enthusiasts who want ZFS data integrity.

Trade-off: ZFS wants more memory than a simple file server, so budget for a RAM upgrade. It is also more expensive, and the interface assumes you understand pools, volumes and snapshots. The model name is sometimes confused with similar TS-h series units, so check the exact designation.

How to choose: a decision matrix

The numbers that matter

Usable capacity

Four 12TB drives provide 36TB usable in RAID 5 (three drives of space), 24TB in RAID 6 or RAID 10, and 12TB in a four-way mirror. RAID 5 on very large drives has a long rebuild time, so many owners choose RAID 6 or RAID 10 when using 16TB drives or larger. The TS-464 lists up to 72TB of supported storage in total.

Network throughput

Gigabit Ethernet delivers about 115 MB/s. 2.5GbE delivers roughly 280 MB/s, and two ports trunked (with a switch that supports link aggregation) can reach QNAP’s quoted 589 MB/s figure for multiple simultaneous clients. A single client still sees a single link’s speed. Spinning disks in RAID 5 typically sustain 300 to 450 MB/s, so a 2.5GbE link is a good match, while 10GbE helps only if you add SSDs.

Power use and running cost

A 4-bay NAS with four spinning drives idles around 25 to 40W. At 30W running all year, it uses about 263 kWh, which is roughly 42 dollars at 16 cents per kWh. Disk standby can reduce this, but frequent spin-ups shorten drive life, so use it with care.

Cache sizing

An SSD cache accelerates repeated reads of small files and metadata. A 500GB to 1TB read cache is plenty for most home users, while write caching helps only for specific workloads such as databases and carries a small risk if power fails. Always use a UPS with write caching.

Drives, memory and accessories

• Use CMR NAS drives: models such as WD Red Plus, Seagate IronWolf and Toshiba N300 are designed for continuous operation. Avoid SMR drives in RAID arrays.
• Mix manufacturing batches: buying drives from different shops or dates reduces the chance of simultaneous failures.
• Add memory if you run containers: the TS-464 accepts up to 16GB and the TS-473A up to 64GB.
• Buy a UPS: a battery backup protects the array during power cuts and lets the NAS shut down cleanly.
• Keep a spare drive: a cold spare saves days during a failure.

Setting up a 4-bay QNAP step by step

1. Install drives and update firmware. Start with current QTS or QuTS hero before you store data.
2. Choose the RAID level for your risk tolerance. RAID 5 for capacity, RAID 6 or 10 for safety on large drives.
3. Create a static pool and volumes. Use thick provisioning for critical shares and thin provisioning when flexibility matters.
4. Set user accounts and shared folders. Give each person their own account and the minimum access they need.
5. Turn on snapshots. Schedule hourly or daily snapshots so ransomware or accidental deletion can be undone.
6. Configure an off-site backup. Use Hybrid Backup Sync to copy to a cloud service or a second device. RAID is not a backup.
7. Harden remote access. Enable two-factor authentication, disable default accounts and use a VPN rather than port forwarding.

Security and maintenance

NAS devices are common targets for ransomware and brute-force login attempts, so keep firmware and apps updated and subscribe to QNAP’s security advisories. Do not expose the admin page to the internet. Review installed apps and remove the ones you do not use. Check SMART status and run a scheduled data scrub or RAID consistency check every month or two. Replace a drive at the first sign of reallocated sectors rather than waiting for an alert that it has failed.

Real-world workloads and which model copes

Family photo and document vault

This is the lightest job. Any model here will store hundreds of thousands of photos, sync phones in the background and serve a shared family folder. The TS-433 is enough, although the Intel models make the photo apps with face recognition and thumbnail generation noticeably quicker. Enable snapshots and a monthly off-site copy, because family photos are the data people regret losing most.

Small office file server

For five to fifteen staff using shared folders, the TS-464 is the sensible starting point. Its 8GB of memory handles permissions, snapshots and a couple of apps, and the 2.5GbE ports keep large spreadsheets and design files responsive. If the office relies on the NAS for virtual machines or a database, move up to the TS-473A or TVS-h474 for the extra memory and ZFS protections.

Media server and home theatre

The TS-453E and TS-464 can direct-play most files and use Intel graphics for conversions. The HDMI output of both allows local playback on a television without another device. If all your players direct-play, even the Arm TS-433 will serve video well. Test your own library on every screen before relying on transcoding.

Video surveillance

QNAP’s surveillance apps support dozens of camera channels depending on the licences you buy. Recording is mostly sequential writing, so the drives matter more than the CPU. Use surveillance-rated drives, leave headroom for the recording retention period, and avoid mixing surveillance footage with your only copy of personal files.

Backup target for computers and servers

Any model works as a destination for Time Machine, Windows backup, Veeam or Hyper Backup. Because backup jobs run overnight, throughput matters less than reliability. Pair the NAS with a second location so that a theft, fire or ransomware incident cannot erase both the originals and the backups.

Buying checklist before you order

1. Write down the total data you have today and multiply by three to estimate your needs for the next four years.
2. Decide how many drive failures you want to survive, then choose RAID 5, RAID 6 or RAID 10 accordingly.
3. List the apps you will run. Plex, Docker containers and virtual machines drive the CPU and memory choice.
4. Check your network. A 2.5GbE NAS needs a 2.5GbE switch and computer to show its full speed.
5. Budget for drives, a UPS and a backup target, not just the enclosure.
6. Read the model’s support dates so you know how long it will receive security updates.

QNAP compared with the alternatives

QNAP’s main competitors in this class are Synology, TerraMaster, Asustor and UGREEN. Synology’s DSM is easier to learn and tends to be the choice for people who want an appliance, but its hardware is often more modest for the price and newer models favor branded drives. TerraMaster and UGREEN offer strong hardware for the money, with younger software. QNAP sits in the middle: hardware options from entry-level to ZFS workstations, a very large app catalog, and a software environment that rewards patience. If you value feature depth, PCIe expansion and a choice of file systems, a QNAP 4-bay is a good fit. If you want the simplest possible setup, compare it against the rivals before you decide.

Whichever brand you choose, the most important decisions are the same: use reliable drives, plan for failure with proper RAID and backups, keep the firmware updated and protect remote access. A well-run mid-range NAS beats a neglected high-end one every time.

Frequently Asked Questions

Which QNAP 4-bay is best for Plex?

The TS-464 or TS-453E, both with Intel processors that can use hardware transcoding, are the most practical. The Arm-based TS-433 is not established for Plex hardware acceleration, and the Ryzen TS-473A needs an added GPU for hardware transcoding.

Is RAID 5 safe on a 4-bay NAS?

It survives one drive failure, but rebuilding with large drives takes many hours, during which a second failure would lose the array. For 16TB or larger drives, RAID 6 or RAID 10 is the more cautious choice, and either way you need a separate backup.

Do I need 10GbE?

Only if you move large files often or edit from the NAS. For backups, streaming and office documents, 2.5GbE is plenty. If you might upgrade later, the TS-464, TS-473A and TVS-h474 offer PCIe slots.

Can I use non-QNAP drives?

Yes. QNAP maintains a compatibility list, and mainstream NAS drives from WD, Seagate and Toshiba are widely used. Check the list for your model, especially for M.2 SSDs.

What is the difference between QTS and QuTS hero?

QTS uses the ext4 file system and is lighter on memory. QuTS hero uses ZFS, adding stronger data integrity, snapshots and deduplication at the cost of more RAM. Some models can run either, while others ship with only one.

How long does a QNAP NAS last?

The enclosure commonly serves five to eight years, with drives needing replacement every three to five. QNAP provides software updates for years after release, but check the support period of a specific model before you buy.