10 Best NAS Enclosures With Four Bays in 2026 for Flexible Home and Office Storage

A four-bay storage system gives you more flexibility than a typical two-drive enclosure, whether you need redundant backups, a personal cloud, a media server, or fast desktop storage.

This roundup covers full NAS systems, direct-attached storage, and diskless enclosures, so you can match features such as networking, RAID support, drive compatibility, and expansion speed to your setup.

Best 10 Nas Enclosure with Four Bays Picks for 2026

Balanced 4-Bay NAS – QNAP TS-464-8G-US

The QNAP TS-464-8G-US is a capable nas enclosure with four bays for households, small teams, and business users who want centralized storage with faster networking. Its 8GB of RAM, dual 2.5GbE ports, and M.2 NVMe slots provide useful headroom for file sharing, media storage, and cache acceleration.

Best For: Families, home offices, and small businesses needing a versatile four-bay NAS.

Pros:

• Quad-core Intel processor and 8GB DDR4 RAM support everyday NAS workloads.
• Dual 2.5GbE ports can speed up file transfers across compatible networks.
• Two M.2 PCIe Gen3x2 slots support caching or SSD storage pools.
• Multiple USB 3.2 Gen 2 ports support fast external-drive transfers.

Cons:

• Drives are not specified as included, so storage expansion adds to the cost.
• Its 2.5GbE networking requires compatible equipment to realize the higher speeds.

Choose this model when you want more than a basic four-drive enclosure but do not need the higher-end processor and networking of a professional workstation NAS.

Simple DAS Storage – TERRAMASTER D4-320 4-Bay Enclosure

The TERRAMASTER D4-320 looks like a nas enclosure with four bays, but it is a direct-attached storage device rather than a network-attached server. It connects over USB-C, supports four independent disks, and offers a straightforward way to add high-capacity storage to a Mac, Windows, or Linux computer.

Best For: Users who want plug-and-play four-drive storage without NAS software or networking.

Pros:

• USB 3.2 Gen 2 supports data rates up to 10Gbps.
• Supports four individual disks with up to 30TB per drive and 120TB total capacity.
• Tool-free trays and hot swapping simplify drive installation and replacement.
• Temperature-controlled cooling and vibration damping help reduce operating noise.

Cons:

• It has no RAID function and is not a NAS.
• Storage is accessible through a direct USB connection rather than across a network.

This is a practical choice for local bulk storage, backups, and media transfers, but shoppers specifically needing remote access or NAS applications should choose a true NAS instead.

Professional 4-Bay NAS – UGREEN DXP4800 Pro

The UGREEN DXP4800 Pro is a high-performance nas enclosure with four bays for developers, IT professionals, video editors, and power users. Its Intel Core i3-1315U processor, expandable DDR5 memory, dual high-speed networking, and support for VMs and Docker make it suited to demanding private-cloud and server workloads.

Best For: Power users and small teams running virtual machines, containers, media workflows, and large private libraries.

Pros:

• Intel Core i3-1315U processor with 8GB DDR5 RAM, expandable to 96GB.
• Dual 10GbE and 2.5GbE ports support high-speed network transfers.
• Supports RAID 0, 1, 5, and 10, plus dual PCIe 4.0 M.2 slots.
• Docker, virtual machines, and on-device AI photo organization expand its uses.

Cons:

• The advanced hardware may be excessive for basic file storage.
• Four drive bays limit maximum HDD expansion compared with larger NAS units.

For demanding workloads and future expansion, this is the most capable true NAS in the group, provided your network and applications can take advantage of its performance.

RAID Expansion Enclosure – QNAP TR-004 4-Bay DAS

The QNAP TR-004 is a four-bay nas enclosure alternative designed as direct-attached storage rather than a standalone NAS. Its USB Type-C connection and hardware RAID support make it useful for expanding a computer or compatible QNAP NAS with disk-based storage, backups, or a simple external RAID array.

Best For: QNAP owners and computer users who need affordable four-drive USB storage with hardware RAID.

Pros:

• Hardware RAID supports RAID 0, 1, 5, JBOD, and individual disks.
• Works with Windows, macOS, and Linux through USB Type-C.
• Lockable bays and included cables and drive accessories support a practical setup.
• Can serve as external storage or expand the capacity of a QNAP NAS.

Cons:

• It is a DAS, not a standalone NAS, and NAS applications cannot be installed on it.
• It is diskless, so compatible SATA drives must be purchased separately.
• Some older QNAP NAS models are not supported.

The TR-004 is a sensible expansion option when hardware RAID matters, but confirm QNAP compatibility and choose a full NAS if you need network services without a host device.

Best High-Performance NAS – UGREEN NAS DXP4800 GT

If you need a nas enclosure with four bays for demanding backups, media work, surveillance, or self-hosted apps, the UGREEN DXP4800 GT offers unusually strong hardware. Its Ryzen processor, expandable memory, dual 10GbE networking, and broad storage expansion make it a capable choice for creators and busy teams.

Best For: Creators, tech enthusiasts, and small office teams that need fast transfers, multitasking, and expandable local storage.

Pros:

• Ryzen Embedded R2514 processor, 8GB RAM expandable to 64GB, and support for Docker and virtual machines.
• Dual 10GbE ports can provide up to 20Gbps aggregate bandwidth with compatible networking equipment.
• Supports four SATA drives, U.2 NVMe expansion in up to two bays, and two M.2 SSDs for up to 144TB total capacity.
• Built-in SD backup, 4K HDMI, and surveillance tools broaden its creator and office workflows.

Cons:

• Drives are not included, so the complete system cost will be higher.
• Some advanced networking, storage, and application features require compatible equipment or additional setup.

The DXP4800 GT is more than a basic file server: it is a high-speed platform for media, backups, cameras, and self-hosted services. It makes the most sense for buyers who can take advantage of its 10GbE connectivity and expansion options.

Best Direct-Attached Four-Bay Enclosure – SABRENT DS-SC4B USB-C Enclosure

The SABRENT DS-SC4B is a straightforward nas enclosure with four bays for users who want direct-attached storage rather than a network operating system. It connects to a computer over USB-C, gives each drive an independent connection, and supports tool-free hot-swapping.

Best For: Windows, macOS, and Linux users who need accessible multi-drive storage without a full NAS server.

Pros:

• Four independent 3.5-inch SATA HDD or SSD bays connect through USB 3.1 Gen 2 Type-C at up to 10Gbps.
• Trayless, tool-free hot-swap design includes per-bay power switches and activity LEDs.
• Aluminum-and-metal construction, active cooling, and a 100-240V power adapter support extended operation.
• Works with Windows, macOS, and Linux and includes security features such as a locking key and Kensington slot.

Cons:

• This is DAS JBOD, not hardware RAID or a network-attached NAS.
• Drives are not included.
• Performance depends on the host computer, USB connection, and individual drives.

Choose the DS-SC4B when simplicity and direct computer access matter more than remote sharing or built-in NAS applications. Its independent drive connections and hot-swap design make it practical for expanding local storage, but RAID or network features must come from your computer or software.

Best Value Home NAS – Yxk Zero1 Pro 4-Bay NAS

The Yxk Zero1 Pro is a practical nas enclosure with four bays for families, home offices, and entry-level homelabs. Its Intel N100 processor, 8GB of RAM, dual 2.5GbE ports, and guided setup provide a solid foundation for backups, media libraries, private cloud storage, and compatible Docker projects.

Best For: Families and home users seeking expandable shared storage, photo organization, and a flexible private cloud without monthly storage tiers.

Pros:

• Four SATA 3.0 bays support RAID 0, 1, or 5 and up to 144TB of combined raw capacity with compatible drives.
• Intel N100 and 8GB DDR4 RAM suit everyday backups, file sharing, media access, and home server projects.
• Dual 2.5GbE ports, 4K HDMI, two M.2 NVMe slots, and Docker support add useful flexibility.
• Guided mobile setup, remote access, and AI-assisted photo organization make it approachable for households.

Cons:

• It is diskless, so HDDs or SSDs must be purchased separately.
• RAID, Docker, third-party operating systems, and remote access may require additional configuration.
• Actual playback, storage, and transfer performance depends on the media, drives, software, and network.

The Zero1 Pro balances approachable home features with enough hardware for a customizable server project. It is a strong fit for shared family storage and backups, while experienced users can explore Docker or compatible NAS operating systems as their needs grow.

Best Overall NAS – Asustor Drivestor 4 Gen 2

The Asustor Drivestor 4 Gen 2 is a strong choice if you want a true nas enclosure with four bays for home backups, private-cloud access, and media streaming. It supports four drives, multiple RAID levels, 2.5GbE networking, and Btrfs snapshots for added data protection.

Best For: Home users and small offices seeking a networked four-bay NAS with backup, remote-access, and media-server features.

Pros:

• Four bays support RAID 0/1/5/6/10 configurations.
• 2.5GbE connectivity can improve file transfers and streaming.
• Btrfs snapshots and WORM support help protect important data.
• Supports 4K media playback and personal-cloud access.

Cons:

• Drives are not included.
• Its 1GB of DDR4 RAM is modest for heavier multitasking.
• It is a network-attached NAS rather than a simple direct-connected enclosure.

Choose this model when data protection and remote access matter as much as capacity. Its 2.5GbE port and four-drive RAID support make it more capable than a basic storage enclosure, while the diskless design lets you choose compatible drives.

Best High-Speed DAS – WAVLINK 4-Bay USB-C Enclosure

The WAVLINK four-bay enclosure suits users who need fast, direct-attached storage rather than a traditional NAS. Its four SATA bays accept 3.5-inch or 2.5-inch drives, while USB-C 3.2 connectivity, hot-swappable bays, cooling fans, and HDMI output add flexibility.

Best For: Desktop users who want high-speed external storage expansion, hot swapping, and workstation connectivity.

Pros:

• USB-C 3.2 supports data transfers up to 10Gbps.
• Accepts four 3.5-inch or 2.5-inch SATA drives.
• Independent bay power switches support convenient drive swapping.
• Aluminum construction and temperature-controlled fans aid cooling.

Cons:

• This is a DAS enclosure, not a network-attached NAS with built-in RAID features.
• 2.5-inch drives require separate mounting brackets.
• HDMI video output requires a compatible host USB-C port and USB-C-to-C connection.

This is the better fit when your priority is fast local storage and flexible drive access. The 10Gbps USB-C connection is particularly useful for large files, though buyers wanting network sharing or NAS management should consider a dedicated NAS instead.

Best Budget Direct Storage – CENMATE Aluminum 4-Bay Enclosure

The CENMATE is a practical nas enclosure with four bays for users who primarily need expandable external storage. It supports both 2.5-inch and 3.5-inch SATA drives, connects over USB 3.0, and uses an aluminum body with active cooling. Note that it is explicitly a DAS enclosure with no RAID or NAS functionality.

Best For: Individuals and businesses wanting straightforward, plug-and-play external storage for Windows, Mac, or Linux systems.

Pros:

• Four bays support 2.5-inch and 3.5-inch HDDs or SSDs.
• USB A/C 3.0 connectivity supports up to 5Gbps.
• Tool-free, hot-swappable design simplifies drive access.
• Aluminum construction and a built-in fan help manage heat.

Cons:

• No RAID or NAS features are included.
• The fan may produce approximately 40–50 dB of noise.
• USB 3.0 is slower than the WAVLINK model’s 10Gbps USB-C connection.

The CENMATE makes sense for simple capacity expansion without network administration. Its broad operating-system compatibility and USB A/C cables make setup easy, but users needing redundancy, remote access, or a genuine NAS should look elsewhere.

How We Picked the Best Nas Enclosure with Four Bays

We selected products across the main categories buyers encounter when shopping for a Nas Enclosure with Four Bays: complete network-attached storage systems, USB direct-attached storage, and diskless drive enclosures. We considered drive compatibility, RAID options, connectivity, cooling, operating system features, ease of installation, and suitability for home, creative, and small-office use.

Because these products are not interchangeable, the comparison below emphasizes what each type is designed to do rather than treating every four-bay unit as a full NAS. A true NAS connects to your network and can provide centralized services, while a DAS or enclosure usually depends on a directly connected computer.

Quick Comparison

• Best for a complete home or office NAS: QNAP TS-464-8G-US, UGREEN NAS DXP4800 Pro, UGREEN NAS DXP4800 GT, Yxk Zero1 Pro, and Asustor Drivestor 4 Gen 2.
• Best for simple USB storage expansion: TERRAMASTER D4-320, QNAP TR-004, SABRENT DS-SC4B, WAVLINK, and CENMATE.
• Best for demanding workflows: Choose a model with 10Gbps or faster connectivity, multiple network ports, a modern processor, or video-output support.
• Best for lower-cost flexibility: A diskless enclosure lets you supply your own SATA drives and choose the capacity and drive mix.

Key Buying Factors for a Nas Enclosure with Four Bays

NAS or DAS?

Choose a NAS if multiple devices need access over Ethernet, or if you want services such as automated backups, user accounts, remote access, media streaming, and surveillance support. Choose a DAS when you mainly need more local storage for one computer and prefer a simpler setup with fewer software considerations.

Drive Support and RAID

Check whether the enclosure accepts 3.5-inch hard drives, 2.5-inch SSDs, or both. RAID 1 protects against a single drive failure, while RAID 5 uses four drives more efficiently but requires rebuilding after a failure. RAID is not a substitute for an external backup. Verify whether the system supports mixed capacities and whether disks are included.

Ports and Real-World Speed

Gigabit Ethernet is adequate for basic backups, but 2.5GbE or 10GbE can significantly improve transfers when your computer, network switch, and cabling support the same standard. USB-C speed also depends on the host port, cable, drives, and enclosure controller.

Cooling, Noise, and Installation

Four drives generate heat, particularly during sustained transfers. Look for an active fan, temperature management, accessible drive trays, and tool-free installation if convenience matters. A quieter enclosure may be preferable in a bedroom or home office, while a rack or utility-room setup can prioritize airflow and performance.

Who Should Buy Which Nas Enclosure with Four Bays?

Buy a full NAS if you want centralized storage for several users, automated device backups, or a personal cloud. A performance-oriented NAS is better for creators, developers, and offices moving large files regularly. Choose a USB enclosure or DAS for straightforward local expansion, archival storage, or a backup target attached to one computer. If you already own compatible drives, a diskless model can reduce initial cost and simplify capacity planning. Before buying, confirm your operating system, drive sizes, network hardware, backup strategy, and required storage capacity.