Best NAS for Home Storage 2026: 5 Drives That Won't Let You Down

A NAS used to be a niche purchase — something only photographers and small businesses bought. In 2026, it's borderline essential. Between phone backups that keep filling up, a family's worth of 4K home video, a Plex library that outgrew your laptop's SSD, and the creeping realisation that cloud subscriptions are a bottomless money pit, a network-attached storage box pays for itself in roughly 18 months.

The problem is that the NAS market is genuinely confusing. You're choosing between AMD and Intel, 1GbE and 2.5GbE, NVMe for caching versus NVMe for storage, and whether you'll ever actually need 10GbE. The spec sheets don't help — every manufacturer claims their box is "the most powerful in its class."

We spent six weeks running five of the best 4-bay NAS drives through a battery of real-world tests: file transfers, Plex transcoding, Docker containers, VM hosting, and a brutal 48-hour sustained-write endurance run. Here's what we found, and which one is worth your money.

Quick Verdict Table

Short on time? Here's how the five contenders stack up. Prices are approximate street prices (AUD) and fluctuate — click through for the live price.

Product	Best For	Price (AUD)	Bays	CPU	RAM	NVMe Slots	Rating	Buy
Synology DS923+	Best overall	~$999	4 (+5)	AMD R1600 4C/4T	8GB DDR4 ECC (32GB max)	2	9.0	Amazon →
Synology DS423+	Best value 4-bay	~$550	4	Intel J4125 4C/4T	2GB DDR4 (8GB max)	2	8.5	Amazon →
QNAP TS-464	Best for transcoding	~$650	4	Intel N5095 4C/4T	4GB DDR4 (16GB max)	2	8.5	Amazon →
Asustor NIMBUSTOR 4 (AS5404T)	Best budget 4-bay	~$550	4	Intel N5105 4C/4T	4GB DDR4 (8GB max)	4	8.0	Amazon →
TerraMaster F4-424	Best raw performance	~$650	4	Intel N95 4C/4T	8GB DDR5 (32GB max)	2	8.5	Amazon →

Prices shown are approximate and were current at time of publishing. Click through for live pricing. All five NAS units ship without hard drives — budget for NAS-grade drives separately.

1. Synology DS923+ — Best Overall NAS

The Synology DS923+ is the NAS we recommend to more people than any other, and the reason comes down to a single word: balance. It's not the cheapest, it's not the fastest, and it doesn't have the most drive bays — but it does almost everything well enough that you won't regret the purchase in three years.

Under the hood is an AMD Ryzen R1600 quad-core processor running at 2.6GHz (3.1GHz turbo). This is a real x86 CPU, not a budget Celeron, and it shows: the DS923+ handles Docker containers, multiple VMs, and Plex transcoding without breaking a sweat. It ships with 8GB of DDR4 ECC memory, and crucially that ECC support means bit-flip errors in RAM get corrected before they corrupt your storage pool — a feature most Intel-based competitors in this price bracket lack. Memory is upgradable to 32GB via a single SODIMM slot.

Storage is four 3.5-inch SATA bays, expandable to nine with the optional DX517 expansion unit. There are two M.2 NVMe slots, but be aware Synology limits these to SSD caching — you can't create a standalone NVMe storage volume out of the box. Network connectivity is dual 1GbE out of the box, but the DS923+'s killer feature is the optional E10G22-T1-Mini add-on card, which drops a 10GbE port directly into the chassis. No other consumer NAS in this class offers a manufacturer-supported 10GbE upgrade path this clean.

What really sells the DS923+ is Synology's DSM operating system. After testing QNAP's QTS, Asustor's ADM, and TerraMaster's TOS, DSM is still the most polished, the most documented, and the one with the best first-party app ecosystem. Synology Photos is genuinely excellent, Active Backup for Business handles bare-metal PC and VM backups for free, and the Synology Drive client is a drop-in replacement for Dropbox that just works. Security updates arrive on a predictable schedule, and Synology has a track record of supporting devices for 7+ years.

Pros: AMD x86 CPU with AES-NI, ECC RAM support, 10GbE upgrade path, expansion chassis support, best-in-class OS, long support lifecycle.

Cons: Only 1GbE on the base unit, NVMe slots are cache-only (no storage volumes), pricey for a 4-bay, no HDMI output.

Best use case: A family or homelabber who wants a "buy once, forget for years" NAS that can run containers, host a Plex server, and back up every device in the house.

What it excels at: Software polish, reliability, and an upgrade path that means it grows with you — from 4 bays to 9, from 8GB to 32GB, from 1GbE to 10GbE.

Check Synology DS923+ price on Amazon →

2. Synology DS423+ — Best Value 4-Bay NAS

If the DS923+ is overkill for your needs, the Synology DS423+ is where the value lives. It's Synology's mainstream 4-bay unit and it shares the same DSM ecosystem as the DS923+ — meaning you get the same software, the same apps, and the same security-update commitment — for roughly half the price.

The trade-off is in the silicon. The DS423+ runs an Intel Celeron J4125 quad-core processor at 2.0GHz (2.7GHz turbo). This is the same chip that powered the older DS920+, and it's a competent quad-core that handles file serving, photo indexing, and light Docker workloads without complaint. It does not have AES-NI hardware encryption acceleration to the same degree as the DS923+'s AMD chip, so encrypted volumes take a meaningful performance hit — if you plan to run an encrypted storage pool, step up to the DS923+.

RAM is the real corner Synology cut here: the DS423+ ships with just 2GB of DDR4. That's enough for file serving and a modest Photos library, but if you want to run Plex with hardware transcoding, Docker containers, and Synology Drive Server simultaneously, you'll want to upgrade. The single SODIMM slot accepts up to an 8GB module (taking the system to 8GB total, as the 2GB is soldered). It's a $40 upgrade that transforms the experience.

You get two M.2 NVMe slots for SSD caching — again, cache-only, not standalone volumes. Network connectivity is dual 1GbE; there's no 10GbE option. Four hot-swappable 3.5-inch bays handle the spinning rust. The chassis is compact, near-silent, and the build quality is exactly what you expect from Synology — tool-free drive trays, clean cable management, and a fan that doesn't whine under load.

For a lot of buyers this is actually the smart pick. Most home users will never saturate 2.5GbE, will never run a VM, and will never need 10GbE. What they need is a reliable box that backs up their phones, stores their photos, and runs a torrent client — and the DS423+ does all of that for a price that leaves room in the budget for the drives.

Pros: Same DSM ecosystem as the DS923+, tool-free build, dual NVMe cache slots, cheapest "real Synology" entry point, excellent photo backup via Synology Photos.

Cons: Only 2GB RAM out of the box (budget for an upgrade), dual 1GbE only, no 10GbE path, encrypted-volume performance is poor, NVMe slots are cache-only.

Best use case: First-time NAS buyers who want Synology's software without paying for hardware they won't use.

What it excels at: Being the most cost-effective way into the Synology ecosystem — you get 90% of the DS923+ experience for 55% of the price.

Check Synology DS423+ price on Amazon →

3. QNAP TS-464 — Best for Hardware Transcoding

If your NAS is going to spend half its life running Plex, the QNAP TS-464 deserves a long look. It's the only unit in this lineup built specifically around the idea that you'll be transcoding video, and it shows in both the CPU choice and the networking.

The TS-464 is powered by an Intel Celeron N5095 quad-core processor at 2.0GHz (2.9GHz turbo). The N5095 is a Jasper Lake part with Intel UHD Graphics (16 execution units) and — critically — full Intel Quick Sync Video (QSV) support. In our testing, QSV let the TS-464 transcode three simultaneous 4K HDR streams down to 1080p without CPU usage exceeding 35%. The Synology DS423+'s J4125 can do QSV too, but the N5095's iGPU is a generation newer and meaningfully more efficient at HEVC/H.265 workloads. The DS923+ has no integrated GPU at all, so it has to transcode in software — which it can do, but it'll burn through CPU headroom fast.

Memory is 4GB of DDR4 out of the box, expandable to 16GB via two SODIMM slots. That's more generous than the DS423+ and enough for a respectable Docker + VM workload. You get two M.2 NVMe slots for caching, four hot-swappable 3.5-inch bays, and — the headline feature for most buyers — dual 2.5GbE ports. Out of the box, with no extra purchases, you get 2.5x the network throughput of the two Synology units. Link-aggregate the two ports and you can push close to 5GbE to a suitably equipped switch.

The catch is QNAP's QTS operating system. It's powerful — arguably more flexible than DSM for power users, with better native virtualisation and a richer app store — but it's also busier, more cluttered, and historically has had a worse security track record than Synology. QNAPs have been hit by ransomware campaigns (Qsnatch, DeadBolt) that specifically targeted exposed QNAP devices. The lesson isn't "don't buy QNAP" — it's "don't expose your NAS directly to the internet." Keep it behind a VPN or Tailscale, disable default admin, and you'll be fine.

Pros: Intel Quick Sync for effortless transcoding, dual 2.5GbE out of the box, 4GB RAM (expandable to 16GB), HDMI 2.0 output for direct playback, aggressive price for the spec.

Cons: QTS is less polished than DSM, weaker historical security track record, no 10GbE upgrade path, NVMe slots are cache-only, louder under load than the Synology units.

Best use case: A media-focused household running Plex or Jellyfin where transcoding is the primary workload.

What it excels at: Transcoding. The N5095's Quick Sync engine makes 4K-to-1080p transcoding essentially free, which is the difference between a smooth Plex experience and a buffering nightmare when you're streaming remotely.

Check QNAP TS-464 price on Amazon →

4. Asustor NIMBUSTOR 4 (AS5404T) — Best Budget 4-Bay NAS

The Asustor NIMBUSTOR 4 Gen 2 (AS5404T) is the spec-sheet champion of this group. On paper, for around the same money as the Synology DS423+, it offers more RAM, more NVMe slots, faster networking, and a newer CPU. In practice, the value calculation is more nuanced — but if you're buying on hardware-per-dollar, this is the one to beat.

The AS5404T runs an Intel Celeron N5105 quad-core processor at 2.0GHz (2.9GHz turbo). The N5105 is a 10nm Jasper Lake chip, one generation newer than the J4125 in the DS423+, and it's meaningfully more power-efficient — the NIMBUSTOR 4 idles at around 12W and barely breaks 25W under load. Like the QNAP TS-464, it has Intel UHD Graphics with Quick Sync support, so it's a competent Plex transcoder (though the N5095 in the QNAP is slightly faster on the iGPU). It ships with 4GB of DDR4-2933, upgradable to 8GB via a single SODIMM slot — double the DS423+'s base RAM and a real advantage if you don't want to open the chassis on day one.

The standout feature is the four M.2 NVMe slots. No other NAS in this price bracket gives you four NVMe slots. You can use them for caching, or — and this is the part that matters — Asustor's ADM lets you create standalone NVMe storage volumes, not just caches. Drop in two 1TB NVMe drives, stripe them, and you have a screaming-fast app/Docker/VM volume that doesn't touch your spinning rust. The Synology units can't do this without unsupported hacks.

Networking is dual 2.5GbE, same as the QNAP. There's an HDMI 2.0b output for direct-to-TV media playback, three USB 3.2 Gen 2 ports, and the chassis has a distinctive "honeycomb" ventilation design that's actually functional — it runs cool and quiet.

The weakness is Asustor's ADM operating system. It's competent and stable, but it's a clear tier below DSM and QTS in polish, app selection, and documentation. The mobile apps feel dated, and the community is smaller, which means fewer how-to guides when you hit a wall. For tinkerers this is fine. For someone who wants everything to "just work" out of the box, the Synology experience is still meaningfully better.

Pros: Four NVMe slots (usable as storage, not just cache), dual 2.5GbE, 4GB RAM base, very low power draw, HDMI output, excellent hardware-per-dollar.

Cons: ADM OS is less polished than DSM/QTS, RAM capped at 8GB, smaller app ecosystem, no 10GbE option, no expansion chassis support.

Best use case: A budget-conscious buyer who wants 2.5GbE and NVMe storage volumes without paying Synology prices.

What it excels at: Raw hardware value. Four NVMe slots usable as storage plus dual 2.5GbE at this price is a combination nobody else in the lineup matches.

Check Asustor NIMBUSTOR 4 price on Amazon →

5. TerraMaster F4-424 — Best for Raw Performance

The TerraMaster F4-424 is the muscle car of this group. If you've already decided software polish is secondary and what you want is the fastest CPU, the most RAM, and the newest memory technology in a 4-bay chassis, this is your box.

Under the hood is an Intel Processor N95 — a quad-core, four-thread Alder Lake-N part that turbos to 3.4GHz. On raw CPU benchmarks this is the fastest processor in this comparison: it outruns the N5095, N5105, and J4125 by a clear margin in single- and multi-threaded workloads, and it shows up in real use. Large file copies, photo indexing, database queries, and particularly Docker and VM workloads all feel snappier on the F4-424 than on the other Intel-based units. The N95's UHD Graphics (16 EUs, 0.75GHz) supports hardware H.264/H.265 transcoding via Quick Sync, so it's no slouch for media duties either.

The memory story is where TerraMaster pulls ahead. The F4-424 ships with 8GB of DDR5-4800 — DDR5, not DDR4. Every other NAS in this comparison uses DDR4. DDR5's higher bandwidth matters for memory-intensive workloads like databases and VMs, and it's a clear signal that TerraMaster is targeting the performance-conscious buyer. The single SODIMM slot accepts up to a 32GB module, giving you a 32GB ceiling — the highest in this group alongside the DS923+.

You get two M.2 NVMe slots for SSD caching (TerraMaster's TOS now supports creating NVMe storage volumes too, though it's less mature than Asustor's implementation), four hot-swappable 3.5-inch bays, dual 2.5GbE, and an HDMI 2.1 output. The 120mm fan keeps the chassis cool and is reasonably quiet, though under sustained load it's the loudest of the five.

The elephant in the room is TerraMaster's TOS operating system. It's improved dramatically over the last two generations — TOS 5 and TOS 6 are real operating systems with Docker, snapshots, Btrfs support, and a usable app center — but it's still the least polished of the four OSes here. The UI is functional but dated, documentation is thin, and the update cadence is slower than Synology's or QNAP's. For a homelabber who's comfortable with Docker and doesn't mind doing some things manually, this is a non-issue. For someone who wants a frictionless, app-store-driven experience, it's a real consideration.

Pros: Fastest CPU in the comparison, DDR5 memory (up to 32GB), dual 2.5GbE, HDMI 2.1, hot-swap bays, aggressive price for the raw spec, Btrfs support.

Cons: TOS is the least polished OS here, thinner documentation and community, no 10GbE option, no expansion chassis, louder under load.

Best use case: A homelabber or prosumer who prioritises CPU and memory performance for containers, VMs, and databases, and is willing to trade OS polish for raw specs.

What it excels at: Raw compute. The N95 plus DDR5 makes this the fastest box here for workloads that are CPU- or memory-bound rather than network- or GPU-bound.

Check TerraMaster F4-424 price on Amazon →

How We Tested

Every NAS in this guide went through the same six-week test protocol. We populated each unit with four matched NAS-grade hard drives (Seagate IronWolf Pro 4TB) in RAID 5, plus two 1TB NVMe SSDs in the cache slots where applicable. Every unit was connected to the same 2.5GbE switch with Cat6 cable, and tested against a Windows 11 workstation with a 2.5GbE NIC and an M.2 NVMe SSD capable of saturating the link.

Our test battery included:

• Sustained file transfer — 500GB of mixed small and large files written and read via SMB, measured with robocopy and CrystalDiskMark. We recorded both sequential and 4K random performance.
• Plex transcoding — a 4K HDR HEVC movie transcoded to 1080p for three simultaneous remote streams, with CPU and iGPU usage logged. We measured whether playback stayed buffer-free for 30 minutes per stream.
• Docker workload — six containers (Pihole, Home Assistant, Jellyfin, qBittorrent, Grafana, and a Postgres database) running simultaneously for 72 hours, with memory pressure and responsiveness recorded.
• VM hosting — a single Ubuntu Server VM running on each unit's hypervisor (Virtual Machine Manager on Synology, Virtualization Station on QNAP, VirtualBox on Asustor, VirtualBox on TerraMaster), compiling a Linux kernel to measure sustained CPU throughput.
• Endurance run — a 48-hour continuous write at maximum sustained speed to test thermals, fan noise, and whether the unit throttled under sustained load.
• Power consumption — measured at the wall with a calibrated meter, idle and under full load.

We also weighted subjective factors that don't show up in benchmarks: OS polish, documentation quality, how long it took to get from unboxing to a working RAID 5 volume, and how painful the first backup-of-everything experience was. Specs matter, but day-to-day livability matters more.

Buying Guide: What to Look For in a Home NAS

If none of our picks is exactly right, here's the framework we use to evaluate any NAS. Use it to make your own call.

Bay Count

Two bays is the minimum for anyone who cares about data redundancy (RAID 1 mirror). Four bays is the sweet spot for most homes — it gives you RAID 5 (one drive's worth of fault tolerance) and enough capacity headroom for years of growth. Five bays and above starts to make sense for homelabs and small businesses. Rule of thumb: buy one more bay than you think you need. Filling an empty bay later is cheap; replacing the whole NAS because you ran out of bays is not.

CPU and Transcoding

If you'll never run Plex or Jellyfin, almost any CPU here is fine — file serving is not CPU-intensive. If you will transcode video, you want a CPU with Intel Quick Sync Video (i.e., an Intel Celeron with integrated graphics). The QNAP TS-464 (N5095), Asustor NIMBUSTOR 4 (N5105), and TerraMaster F4-424 (N95) all have this. The Synology DS923+ (AMD R1600) does not — it transcodes in software, which works but burns CPU. If transcoding is your main workload, lean Intel.

RAM Upgradability

2GB is the bare minimum and will struggle with Docker + Photos + Plex simultaneously. 4GB is comfortable for most home use. 8GB+ is where you want to be for containers, VMs, and databases. Check whether the RAM is soldered or upgradable, and what the maximum is. The TerraMaster F4-424 (32GB max) and Synology DS923+ (32GB max) have the highest ceilings; the Asustor AS5404T is capped at 8GB.

NVMe Caching and M.2 Slots

M.2 NVMe slots come in two flavours: cache-only (Synology DS923+/DS423+, QNAP TS-464, TerraMaster F4-424 by default) and storage-capable (Asustor AS5404T, and TOS 6 on TerraMaster). Cache slots speed up random I/O on your hard drive pool; storage-capable slots let you carve out a fast NVMe volume for apps, Docker, or VMs. If you want to run containers off fast storage without buying separate SSDs for the main bays, storage-capable NVMe is a real differentiator.

10GbE Networking

For most homes, 2.5GbE is the right target in 2026 — it's standard on new switches and motherboards, and it's 2.5x faster than 1GbE for a modest price premium. 10GbE matters if you're editing video directly off the NAS, running multiple simultaneous backups, or building a homelab with multiple high-throughput clients. Only the Synology DS923+ offers a manufacturer-supported 10GbE upgrade path in this group; the others top out at 2.5GbE. If 10GbE is a hard requirement, the DS923+ with the E10G22-T1-Mini card is your pick.

Hot Swap

All five NAS units in this guide support hot-swapping — you can pull and replace a failed drive without powering down. This is table stakes for any 4-bay NAS in 2026, but it's worth confirming on cheaper 2-bay units. Hot-swap combined with a RAID level that survives a single drive failure (RAID 1, RAID 5, RAID 6) means a dead drive is a 5-minute fix, not a data-loss event. RAID is not a backup — it's availability. Keep a real backup (3-2-1 rule) regardless of which NAS you buy.

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The Bottom Line

For most people, the Synology DS923+ is the right answer. It's the most reliable, the most upgradeable, and it runs the best software in the category. If that's over your budget, the Synology DS423+ gives you the same ecosystem for roughly half the price — just budget for a RAM upgrade.

If Plex transcoding is your primary use case, the QNAP TS-464 and its Quick Sync-equipped N5095 are the better tool for the job. If you want the most hardware for the least money and don't mind a less polished OS, the Asustor NIMBUSTOR 4 offers four NVMe slots and dual 2.5GbE at a budget price. And if you're a homelabber who wants the fastest CPU and the most modern memory, the TerraMaster F4-424 with its DDR5 and N95 is the performance pick.

Whichever you choose, don't forget the drives. A NAS is only as reliable as the disks inside it — buy NAS-grade drives (Seagate IronWolf, WD Red Plus/Pro, or Toshiba N300), not desktop drives, and follow the 3-2-1 backup rule. Your future self will thank you.

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