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NAS Storage Devices · Best NAS Storage Devices for Backups and file sharing and Moderate: 3–4 drives

10 Best NAS Storage Devices for Backups and file sharing and Moderate: 3–4 drives (2026)

We evaluated every model against our criteria. 10 earned a spot. Here's what each is best for — and when a different option wins.

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Updated Apr 20, 202610 models evaluatedNo sponsored rankings
Top 3 at a glance
NAS Storage Devices
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#1 PickBest NAS Storage Devices for Backups and file sharing and Moderate: 3–4 drives
100%DecisionScore
QNAP TS-233-US 2See on Amazon
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Top 3 at a glance
1
Best OverallQNAP

QNAP 233-US

Best for: backups and file sharing with minimal: 1–2 drives
100% match
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Why this pick
Different workloads place different demands on a NAS. The QNAP TS-233-US 2 leads because it delivers backups and file sharing with minimal: 1–2 drives — exactly what this ranking prioritizes. It features a ARM Cortex-A55 processor with 4 cores and 2 GB of memory, expandable to 2 GB.
2
Runner-UpSynology

Synology 2-Bay

Best for: backups and file sharing with minimal: 1–2 drives
100% match
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Why this pick
The Synology 2-Bay DiskStation offers backups and file sharing with minimal: 1–2 drives. It features a Realtek RTD1619 processor with 4 cores and 2 GB of memory, expandable to 2 GB.
3
Also GreatSynology

Synology 2-Bay

Best for: backups and file sharing with minimal: 1–2 drives
100% match
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Why this pick
The Synology 2-Bay DiskStation offers backups and file sharing with minimal: 1–2 drives. It features a Intel Celeron J4125 processor with 4 cores and 2 GB of memory, expandable to 6 GB.
4
#4 PickTERRAMASTER

TERRAMASTER F2-425

Best for: backups and file sharing with minimal: 1–2 drives
100% match
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Why this pick
The TERRAMASTER F2-425 2-Bay delivers backups and file sharing and minimal: 1–2 drives. It features a Realtek RTD1619B processor with 4 cores and 1 GB of memory, expandable to 1 GB.
5
#5 PickWD

Western Digital 8TB

Best for: backups and file sharing with minimal: 1–2 drives
100% match
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Why this pick
The WD Digital 8TB delivers backups and file sharing and minimal: 1–2 drives. It features a Marvell ARMADA 385 processor with 2 cores and 1 GB of memory, expandable to 1 GB.
6
#6 PickAsustor

Asustor Drivestor 2 Pro Gen2

Best for: backups and file sharing with minimal: 1–2 drives
75% match
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Why this pick
The Asustor Drivestor 2 differentiates with multi‑gig: 2.5 gbe (pick the fastest connection your network can use). It features a Realtek RTD1296 processor with 4 cores and 2 GB of memory, expandable to 2 GB.
7
#7 PickQNAP

QNAP 264-8G-US

Best for: backups and file sharing with minimal: 1–2 drives
75% match
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Why this pick
The QNAP TS-264-8G-US 2 differentiates with multi‑gig: 2.5 gbe (pick the fastest connection your network can use). It features a Intel Celeron N5105 processor with 4 cores and 4 GB of memory, expandable to 8 GB.
8
#8 PickUbiquiti Networks

Ubiquiti UNAS 2 UniFi 2-Bay

Best for: backups and file sharing with minimal: 1–2 drives
75% match
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Why this pick
The Ubiquiti Networks UNAS 2 differentiates with multi‑gig: 2.5 gbe (pick the fastest connection your network can use). It features a Arm-based processor with 4 cores and 2 GB of memory, expandable to 2 GB.
9
#9 PickAsustor

Asustor AS5404T

Best for: media streaming and plex with moderate: 3–4 drives
50% match
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Why this pick
The Asustor AS5404T, 4 differentiates with media streaming and plex (choose the main reason you’re buying a nas). It features a Intel Celeron N5105 processor with 4 cores and 4 GB of memory, expandable to 8 GB.
10
#10 PickSynology

Synology DS923

Best for: virtualization or small business apps with moderate: 3–4 drives
50% match
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Why this pick
The Synology DS923+ 4-Bay differentiates with virtualization or small business apps (choose the main reason you’re buying a nas). It features a AMD Ryzen R1600 processor with 2 cores and 4 GB of memory, expandable to 32 GB.

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