4 Bay NAS Black Friday Deals 2026: Best Offers This Year

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The best 4 bay NAS Black Friday deals in 2026 center on seven systems: Synology DiskStation DS923+, Synology DiskStation DS423+, QNAP TS-464-8G, QNAP TS-433-4G, TerraMaster F4-424 Pro, ASUSTOR Lockerstor 4 Gen2 AS6704T and UGREEN NASync DXP4800 Plus. Each has four drive bays, but processor power, networking, software and upgrade options differ.

I researched and compared specs, reviews and owner feedback to identify which models fit common home and small-office needs. My pick for most people is the Synology DiskStation DS923+ for its balanced storage features and upgrade path. Check whether a listing includes drives: many NAS enclosures are sold diskless, so drive costs belong in your total budget.

How We Picked

• Compared four-bay capacity, processor class, memory and expansion options for everyday storage workloads.
• Reviewed network connections, including 1GbE, 2.5GbE and 10GbE, to match each system to realistic home networks.
• Considered software and typical use cases, from automated backups and shared files to media libraries.
• Checked the drive-bay and M.2 configurations that affect storage expansion and cache options.
• Weighed owner feedback and practical trade-offs, including setup complexity, noise considerations and network upgrade needs.

Comparison Table

Product	Best for	Drive bays	Ethernet	M.2 slots
Synology DiskStation DS923+	All-round storage	4	2 x 1GbE	2
Synology DiskStation DS423+	Home backups	4	2 x 1GbE	2
QNAP TS-464-8G	Media and faster home networking	4	2 x 2.5GbE	2
QNAP TS-433-4G	Essential home storage	4	1 x 2.5GbE, 1 x 1GbE	0
TerraMaster F4-424 Pro	Performance-focused storage	4	2 x 2.5GbE	2
ASUSTOR Lockerstor 4 Gen2 AS6704T	M.2 expansion	4	2 x 2.5GbE	4
UGREEN NASync DXP4800 Plus	High-speed networking	4	1 x 10GbE, 1 x 2.5GbE	2

Best Picks Reviewed

#1 · Top pick

Synology DiskStation DS923+

The Synology DiskStation DS923+ is the best overall 4-bay NAS for households and small offices that want flexible storage, with a 4-core-thread AMD Ryzen R1600 processor and two M.2 slots.

Best for: All-round home and small-office storage

Drive bays

4

Processor

AMD Ryzen R1600, 2 cores

Memory

4GB ECC DDR4

M.2 slots

2

Pros

• Synology DiskStation Manager offers a broad set of backup, file-sharing and photo-management tools.
• Two M.2 slots and optional network upgrades give the system room to adapt as needs grow.
• ECC memory and a 4-bay layout suit a dependable shared storage hub.

Cons

• The dual 1GbE ports are slower than 2.5GbE connections on several alternatives.
• Memory and expansion upgrades add cost.

Is the Synology DiskStation DS923+ worth buying on Black Friday 2026?

Yes. The Synology DiskStation DS923+ is a strong Black Friday 2026 choice for buyers who value mature storage software, four drive bays and an upgrade path with two M.2 slots. The Synology DiskStation DS923+'s dual 1GbE ports are less suited to high-speed transfers.

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#2

Synology DiskStation DS423+

The Synology DiskStation DS423+ is the best 4-bay NAS for buyers prioritizing accessible storage software, with an Intel Celeron J4125 processor and two M.2 slots.

Best for: Easy-to-manage home backups

Drive bays

4

Processor

Intel Celeron J4125, 4 cores

Memory

2GB DDR4

M.2 slots

2

Pros

• Synology DiskStation Manager makes common tasks such as shared folders and computer backups approachable.
• Two M.2 slots add cache options without taking up a hard-drive bay.
• Four bays give families room to organize a growing photo and document collection.

Cons

• Dual 1GbE networking limits transfer speed on compatible faster networks.
• The base 2GB memory is modest for demanding multitasking.

Is the Synology DiskStation DS423+ worth buying on Black Friday 2026?

Yes. The Synology DiskStation DS423+ is worth considering for a home backup hub with four bays and approachable management software. The 2GB of memory and dual 1GbE connections fit routine file storage better than workloads that demand high transfer speeds or heavy multitasking.

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#3

QNAP TS-464-8G

The QNAP TS-464-8G is the best 4-bay NAS for media libraries and connected home offices, with two 2.5GbE ports and an Intel Celeron N5095 processor.

Best for: Media libraries and faster home networking

Drive bays

4

Processor

Intel Celeron N5095, 4 cores

Memory

8GB

M.2 slots

2

Ethernet

2 x 2.5GbE

Pros

• Two 2.5GbE ports support faster file transfers on a compatible wired network.
• The HDMI 2.0 output gives the system an extra option for local media use.
• Eight gigabytes of memory and two M.2 slots offer useful capacity for multiple services.

Cons

• Faster network performance requires compatible routers, switches and client devices.
• QNAP's software has a learning curve for first-time NAS owners.

Is the QNAP TS-464-8G worth buying on Black Friday 2026?

Yes. The QNAP TS-464-8G is a good fit for buyers who want four drive bays, two 2.5GbE ports and an HDMI connection. The QNAP TS-464-8G's faster networking stands out when the rest of the home network supports 2.5GbE.

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#4

QNAP TS-433-4G

The QNAP TS-433-4G is the best budget-focused 4-bay NAS for basic backups and shared files, with a quad-core ARM Cortex-A55 processor and 4GB of memory.

Best for: Essential home storage on a tighter budget

Drive bays

4

Processor

ARM Cortex-A55, 4 cores

Memory

4GB

Ethernet

1 x 2.5GbE, 1 x 1GbE

Pros

• Four bays provide space for a multi-drive storage pool in a compact desktop system.
• A 2.5GbE port supports faster transfers than a 1GbE-only connection when the network is ready.
• The ARM processor and 4GB memory suit straightforward backups and file sharing.

Cons

• The ARM platform is less suited to demanding applications than the higher-powered options here.
• The QNAP TS-433-4G has no M.2 slots for SSD cache expansion.

Is the QNAP TS-433-4G worth buying on Black Friday 2026?

Yes. The QNAP TS-433-4G is a practical choice for core storage tasks, especially backups and shared files across four drives. Choose a more powerful model for demanding applications, extensive multitasking or a media server that requires heavy processing.

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#5

TerraMaster F4-424 Pro

The TerraMaster F4-424 Pro is the best 4-bay NAS for buyers seeking strong processing and network capacity, with an Intel Core i3-N305 processor and dual 2.5GbE ports.

Best for: Performance-focused home storage

Drive bays

4

Processor

Intel Core i3-N305, 8 cores

Memory

32GB DDR5

M.2 slots

2

Ethernet

2 x 2.5GbE

Pros

• The 8-core processor supports more demanding workloads than entry-level ARM-based NAS options.
• Two 2.5GbE ports suit faster file transfers over a compatible wired network.
• Two M.2 slots and 32GB of memory give the system a substantial feature set.

Cons

• TerraMaster's software ecosystem is less familiar to some NAS buyers than Synology's.
• The stronger hardware is excessive for simple document backups.

Is the TerraMaster F4-424 Pro worth buying on Black Friday 2026?

Yes. The TerraMaster F4-424 Pro makes sense for buyers who want a strong processor, 32GB of memory and dual 2.5GbE networking in a four-bay enclosure. The TerraMaster F4-424 Pro's extra performance is most useful for busier workloads, not basic file storage.

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#6

ASUSTOR Lockerstor 4 Gen2 AS6704T

The ASUSTOR Lockerstor 4 Gen2 AS6704T is the best 4-bay NAS for SSD expansion, with four M.2 slots, an Intel Celeron N5105 processor and dual 2.5GbE ports.

Best for: M.2 expansion and flexible storage

Drive bays

4

Processor

Intel Celeron N5105, 4 cores

Memory

4GB DDR4

M.2 slots

4

Ethernet

2 x 2.5GbE

Pros

• Four M.2 slots offer more SSD expansion options than the other systems in this guide.
• Dual 2.5GbE ports provide a faster wired-network foundation.
• The four-bay design keeps hard-drive capacity alongside room for M.2 drives.

Cons

• The Celeron processor and 4GB memory are less suited to especially heavy workloads.
• Making full use of multiple M.2 slots adds to the overall system cost.

Is the ASUSTOR Lockerstor 4 Gen2 AS6704T worth buying on Black Friday 2026?

Yes. The ASUSTOR Lockerstor 4 Gen2 AS6704T stands out for four M.2 slots, four hard-drive bays and dual 2.5GbE connections. The ASUSTOR Lockerstor 4 Gen2 AS6704T is a compelling fit for buyers who want SSD expansion options alongside conventional NAS storage.

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#7

UGREEN NASync DXP4800 Plus

The UGREEN NASync DXP4800 Plus is the best premium 4-bay NAS for fast network transfers, with a 10GbE port, a 2.5GbE port and two M.2 slots.

Best for: High-speed networking and premium home setups

Drive bays

4

Processor

Intel Pentium Gold 8505, 5 cores

Memory

8GB DDR5

M.2 slots

2

Ethernet

1 x 10GbE, 1 x 2.5GbE

Pros

• A 10GbE port offers a high-speed connection for compatible workstations and network equipment.
• Two M.2 slots add SSD expansion choices alongside the four hard-drive bays.
• The Pentium Gold processor and 8GB DDR5 memory support a capable home storage setup.

Cons

• A 10GbE network requires compatible equipment to deliver its full transfer-speed advantage.
• Buyers should compare software features with their preferred backup and media workflows.

Is the UGREEN NASync DXP4800 Plus worth buying on Black Friday 2026?

Yes. The UGREEN NASync DXP4800 Plus is a strong premium option for buyers who can use its 10GbE connection and want four bays plus two M.2 slots. A compatible network is essential to benefit from its fastest wired connection.

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Which 4-bay NAS is best for most people?

The Synology DiskStation DS923+ is the best all-round 4-bay NAS for many homes and small offices, with four drive bays, two M.2 slots and a broad suite of storage software. The Synology DiskStation DS423+ is another good fit for buyers who put ease of managing backups ahead of faster networking.

Choose the QNAP TS-464-8G when dual 2.5GbE ports and an HDMI output better match a media-focused setup. The QNAP TS-433-4G keeps the core four-bay format while targeting straightforward file storage and backups. Match the system to the work it needs to do rather than paying for processor or network capacity that will sit unused.

What can a 4-bay NAS do for a home?

A 4-bay NAS such as the Synology DiskStation DS923+ can centralize files, photos and backups across up to four installed drives. A network-attached storage system connects to a home network, giving compatible computers and devices a shared place to access files without relying on one computer being switched on.

The QNAP TS-464-8G and ASUSTOR Lockerstor 4 Gen2 AS6704T add features that suit larger media libraries, while software on each brand's system supports different backup and sharing workflows. A NAS is useful for organizing a household's important files, but RAID is not a substitute for a separate backup copy.

How much network speed does a 4-bay NAS need?

A 1GbE connection is adequate for routine document storage and backups, while 2.5GbE or 10GbE can speed up large transfers when every connected device supports the faster standard. The Synology DiskStation DS923+ and DS423+ use dual 1GbE ports; the QNAP TS-464-8G and TerraMaster F4-424 Pro have dual 2.5GbE.

The UGREEN NASync DXP4800 Plus includes 10GbE and 2.5GbE ports, but that faster connection only pays off with compatible networking gear and a suitable client device. Check the router or switch, cable path and computer network adapter before choosing a NAS for transfer speed.

Do 4-bay NAS systems include hard drives?

Many 4-bay NAS enclosures, including models from Synology, QNAP, TerraMaster, ASUSTOR and UGREEN, are sold without hard drives, so buyers need to check the exact listing. A diskless enclosure gives shoppers control over drive capacity and brand, but also means the NAS is not ready to store files on arrival.

Choose NAS-rated drives listed as compatible with the selected system, then consider how much usable capacity the chosen RAID or storage-pool layout provides. Keep a separate backup of important data: multiple drives in one NAS do not protect against every failure, accident or security problem.

What should I compare in 4-bay NAS Black Friday deals?

The best 4 bay NAS Black Friday deals in 2026 are the listings that pair the right model with a useful configuration, clear warranty information and a complete view of drive requirements. Compare the enclosure model, included memory, network ports and whether hard drives are part of the bundle.

Check the seller and return terms, then compare the full setup cost rather than the NAS alone. The QNAP TS-433-4G suits simpler storage, while the UGREEN NASync DXP4800 Plus and TerraMaster F4-424 Pro bring more advanced hardware. Skip it if a listing obscures the model or drive contents.

Buying Guide

Decide how much storage you need

A 4-bay NAS such as the Synology DiskStation DS923+ holds up to four drives, but the usable space depends on drive size and the storage layout. Estimate photo, video and backup needs first, then leave room for growth.

Choose a RAID or storage-pool layout

A 4-drive layout can balance capacity and redundancy in different ways, and each approach affects usable space. Review the NAS maker's guidance before setup, and maintain a separate backup because drive redundancy does not replace a backup.

Match the network to your devices

The QNAP TS-464-8G has dual 2.5GbE ports, while the UGREEN NASync DXP4800 Plus has 10GbE and 2.5GbE. A faster port only helps when the connected switch, computer and network path support it.

Check software and compatibility

Compare backup apps, file-sharing tools, drive compatibility and update support before buying. Synology, QNAP, TerraMaster, ASUSTOR and UGREEN each offer different software experiences, so match the system to the tasks and devices already in your home.

Compare the complete Black Friday setup

Confirm whether the listing includes drives, what memory configuration is included and whether the seller provides a clear return policy. A diskless NAS needs compatible drives, so compare the cost of the complete four-bay setup.

FAQ

What is the best 4 bay NAS for home use in 2026?

The Synology DiskStation DS923+ is a strong home-use pick for four-bay storage, two M.2 slots and mature management software. The Synology DiskStation DS423+ is another fit for buyers who prioritize everyday backup and file-sharing features over faster Ethernet.

Is a 4-bay NAS better than a 2-bay NAS?

A 4-bay NAS gives buyers more drive slots for storage capacity or a chosen redundancy layout. The Synology DiskStation DS923+ suits growing libraries, while a 2-bay system can be a better match for smaller storage needs and a simpler setup.

Which 4-bay NAS is best for Plex and media?

The QNAP TS-464-8G is a good media-library option, with an Intel Celeron N5095 processor, two 2.5GbE ports and an HDMI 2.0 output. Confirm that its software and media features fit the playback devices and video formats in your home.

Do 4-bay NAS deals include hard drives?

Many NAS listings are for diskless enclosures, so the product page needs a careful check for included drives. Models such as the TerraMaster F4-424 Pro and ASUSTOR Lockerstor 4 Gen2 AS6704T require compatible drives when sold without storage.

Is 10GbE worth it on a home NAS?

10GbE is useful for large transfers when the NAS, network switch and computer all support that speed. The UGREEN NASync DXP4800 Plus has a 10GbE port, but buyers with 1GbE equipment will not get the full speed benefit.