A four-bay enclosure gives you room to combine multiple hard drives or SSDs into a larger, more flexible storage system. Depending on the model, it can serve as a full network-attached storage device, a direct-attached RAID box, or a simple multi-drive enclosure.
Our selection includes capable NAS systems and diskless DAS options from QNAP, UGREEN, TERRAMASTER, WAVLINK, and CENMATE. Use the guide below to match drive support, connectivity, RAID features, performance, and software to your setup.
Best 10 Nas Enclosure with Four Bays Picks for 2026
Best All-Around NAS
- 8GB RAM and quad-core Intel processor
- Dual 2.5GbE networking
- M.2 slots and hot-swappable bays
Best For: Home users, families, and small teams
Best Direct-Connect Storage Hub
- Four SATA bays for 3.5- and 2.5-inch drives
- 10Gbps USB-C connectivity
- Cooling fans and HDMI output
Best For: Workstations needing expandable USB storage
Best for Creators and Power Users
- Ryzen processor with expandable 64GB RAM
- Dual 10GbE networking
- Docker, surveillance, and SD backup support
Best For: Creators, technical users, and small offices
Best Plug-and-Play DAS
- 10Gbps USB-C connectivity
- Four individual SATA drive slots
- Tool-free, hot-swappable design
Best For: Simple direct-attached storage on Windows, Mac, or Linux
Best for Private Cloud Beginners
- Automatic AI-assisted photo backup and organization
- 8GB RAM, 2.5GbE, Docker, and 4K HDMI output
- Cross-platform private cloud access; drives sold separately
Best For: Families and home users creating a private cloud
Best USB RAID Enclosure
- Hardware RAID 0, 1, 5, JBOD, and individual-disk support
- USB Type-C direct attachment for Windows, macOS, and Linux
- Lockable bays; diskless design for four 3.5-inch SATA drives
Best For: Direct-attached storage and QNAP NAS expansion
Best for 4K Home Media
- Intel quad-core CPU, 4GB RAM, and 2.5GbE networking
- Hardware 4K decoding with Plex, Emby, Jellyfin, and DLNA
- Quiet 21dB(A) operation and tool-free drive trays
Best For: Home media streaming and multi-user storage
Simple Desktop Storage
CENMATE 4-Bay USB 3.0 Enclosure
- Four SATA bays support 2.5-inch and 3.5-inch drives
- Up to 80TB total capacity with USB 3.0 connectivity
- Includes USB-A and USB-C cables for plug-and-play use
Best For: Basic multi-drive storage expansion without RAID
RAID-Focused Storage
- Eight modes include RAID 0/1/3/5/10, CLONE, LARGE, and NORMAL
- Four bays support drives up to 80TB total
- USB 3.0 and eSATA connectivity with aluminum cooling design
Best For: External multi-drive storage with configurable RAID modes
Best All-Around NAS – QNAP TS-464-8G-US
If you want a capable nas enclosure with four bays for home storage or small-business file sharing, the QNAP TS-464-8G-US is a well-rounded option. Its 8GB of DDR4 memory, dual 2.5GbE ports, and Intel quad-core processor provide a strong foundation for backups, shared files, and personal media.
Best For: Families, home offices, and small teams needing a versatile four-drive NAS.
Pros:
- Includes 8GB DDR4 RAM and a quad-core Intel processor.
- Dual 2.5GbE ports support faster network file transfers.
- Two PCIe Gen3x2 M.2 slots enable cache or SSD storage expansion.
- Hot-swappable drive design and multiple USB 3.2 Gen 2 ports add convenience.
Cons:
- Its 2.5GbE networking is slower than newer 10GbE alternatives.
- Hard drives are not specified as included in the supplied product information.
The TS-464-8G-US balances useful expansion, fast connectivity, and straightforward desktop storage. It is a practical pick when you need more than basic file storage without moving to a larger enterprise enclosure.
Best Direct-Connect Storage Hub – WAVLINK Quad-Bay Enclosure
The WAVLINK enclosure is a flexible alternative for shoppers seeking a nas enclosure with four bays but primarily working from a directly connected computer. It accepts 3.5-inch and 2.5-inch SATA drives, connects over USB-C at up to 10Gbps, and adds HDMI connectivity for compatible hosts.
Best For: Users who want expandable desktop storage, fast USB-C transfers, and optional display connectivity.
Pros:
- Four SATA bays support both 3.5-inch and 2.5-inch drives.
- USB 3.2 Type-C supports data rates up to 10Gbps.
- Temperature-controlled fans and an aluminum shell help with cooling.
- Independent bay power switches support convenient drive management.
Cons:
- It is presented as an enclosure or docking station rather than a full network NAS.
- 2.5-inch drives require separate mounting brackets, which are not included.
- HDMI video output requires a compatible host USB-C port and cable setup.
Choose this WAVLINK model when direct-attached capacity matters more than built-in network services. Its mix of drive compatibility, cooling, and USB-C speed makes it useful for a workstation or media setup.
Best for Creators and Power Users – UGREEN NAS DXP4800 GT
The UGREEN DXP4800 GT is a performance-focused nas enclosure with four bays for creators, technical users, and office teams. Its Ryzen Embedded processor, 8GB of expandable memory, dual 10GbE ports, and support for SSD expansion are designed for demanding transfers and multitasking.
Best For: Creators, small offices, and advanced users running media, backup, Docker, surveillance, or virtual-machine workloads.
Pros:
- Ryzen Embedded R2514 processor with four cores and eight threads.
- 8GB RAM can be expanded up to 64GB.
- Dual 10GbE ports support high-speed transfers and link aggregation.
- Supports SD-card backup, Docker, surveillance features, and SSD expansion.
Cons:
- The broader feature set may be more than basic file-storage users need.
- Maximum capacity depends on separately purchased compatible drives and expansion storage.
For users who expect their NAS to handle more than backups, the DXP4800 GT offers substantial headroom. Its networking and application support make it especially compelling for media workflows and multi-user environments.
Best Plug-and-Play DAS – TerraMaster D4-320
The TerraMaster D4-320 is a diskless direct-attached storage enclosure for shoppers comparing a nas enclosure with four bays. It connects to a computer through USB 3.2 Gen 2, supports four individual SATA disks, and works with Windows, Mac, and Linux without requiring drivers.
Best For: Users who need simple, high-capacity USB storage rather than network-based NAS functions.
Pros:
- USB 3.2 Gen 2 Type-C supports up to 10Gbps transmission.
- Accepts 3.5-inch HDDs, 2.5-inch HDDs, and 2.5-inch SATA SSDs.
- Tool-free trays and hot-swapping simplify drive changes.
- Temperature-controlled cooling and sound-dampening features support quieter operation.
Cons:
- It is a DAS, not a network-attached NAS.
- There is no RAID function; the four disks operate individually.
- The enclosure is diskless, so storage drives must be purchased separately.
The D4-320 is a straightforward choice for expanding one computer’s storage with minimal setup. It is best suited to direct USB workflows where plug-and-play access matters more than remote sharing or NAS applications.
Best for Private Cloud Beginners – UGREEN NAS DH4300 Plus
If you want a nas enclosure with four bays for home storage, photo backups, and remote file access, the UGREEN NAS DH4300 Plus is designed as an approachable starting point. It supports Docker, automatic phone backups, AI-assisted photo organization, 2.5GbE networking, and 4K HDMI output, though storage drives are not included.
Best For: Families, home users, and remote workers building a private cloud with large photo libraries.
Pros:
- Automatic photo and video backups with AI albums, search, and duplicate removal.
- 8GB LPDDR4X RAM and 2.5GbE connectivity support multitasking and fast transfers.
- Works across Windows, macOS, Android, iOS, browsers, and smart TVs.
- Local storage and certified encryption provide greater control over personal data.
Cons:
- Storage disks are not included.
- Supports Docker but not virtual machines.
- Some advanced features may be more than casual users need.
The DH4300 Plus is a well-rounded choice when ease of setup and private photo storage matter more than advanced virtualization. Its broad device support and remote-access features make it especially practical for households moving away from cloud subscriptions.
Best USB RAID Enclosure – QNAP TR-004 4-Bay USB DAS
QNAP TR-004 4 Bay USB Type-C Direct Attached Storage (DAS) with hardware RAID (Diskless)
Check Price On AmazonThe QNAP TR-004 is a nas enclosure with four bays that connects directly to a computer or compatible QNAP NAS over USB Type-C. Because it is a diskless direct-attached storage device rather than a standalone network server, it suits users who need flexible external storage and hardware RAID.
Best For: Computer users and QNAP owners who need expandable USB storage, backups, or a hardware RAID enclosure.
Pros:
- Hardware RAID supports RAID 0, 1, 5, JBOD, and individual-disk modes.
- Works with Windows, macOS, and Linux through USB connectivity.
- Accepts four 3.5-inch SATA drives and includes a USB Type-C to Type-A cable.
- Lockable drive bays and a metal enclosure add practical convenience.
Cons:
- It is diskless and requires a connected computer or compatible NAS.
- NAS applications cannot be installed on the enclosure.
- Compatibility and storage-pool limitations apply with certain QNAP NAS models.
The TR-004 is best understood as a straightforward USB RAID enclosure, not a full-featured NAS. Choose it when direct-attached capacity or QNAP NAS expansion is the priority, and check compatibility before purchasing.
Best for 4K Home Media – TERRAMASTER F4-425 4-Bay NAS
For shoppers seeking a nas enclosure with four bays that can handle home media and multitasking, the TERRAMASTER F4-425 combines an Intel x86 quad-core processor, 4GB RAM, and 2.5GbE networking. It is diskless, but supports up to 120TB, hardware-level 4K H.265 decoding, and popular media servers.
Best For: Home media enthusiasts, multi-user households, and users who want quiet 4K streaming with flexible storage options.
Pros:
- Intel quad-core processing and 4GB RAM support multitasking and 4K transcoding.
- Compatible with Plex, Emby, Jellyfin, and DLNA for multi-device playback.
- 2.5GbE networking supports fast transfers and concurrent user access.
- Quiet 21dB(A) operation and tool-free push-lock trays simplify home use.
Cons:
- Storage drives are not included.
- Plastic enclosure construction may feel less substantial than metal alternatives.
- Its media-focused features may be unnecessary for basic file storage.
The F4-425 is a strong fit for a quiet household media server with room to grow. Its mobile backups, AI photo albums, cloud synchronization, and TRAID or TRAID+ options add flexibility beyond simple network file sharing.
High-Speed Expansion – WAVLINK 4-Bay USB-C Enclosure
For shoppers seeking a nas enclosure with four bays, the WAVLINK offers a flexible desktop storage expansion setup with four SATA 6Gbps bays for 3.5-inch or 2.5-inch drives. USB-C 3.2 Gen 2 connectivity reaches up to 10Gbps, while HDMI adds up to 4K at 60Hz output when used with a compatible host USB-C video port.
Best For: Users who want high-speed external storage expansion plus display and peripheral connectivity.
Pros:
- Supports four 3.5-inch or 2.5-inch SATA HDDs or SSDs, with capacity up to 88TB using four 22TB drives.
- USB-C 3.2 Gen 2 provides up to 10Gbps transfer speeds.
- Aluminum construction and temperature-controlled dual fans help manage heat.
- Independent power switches support convenient drive control and swapping.
Cons:
- 2.5-inch drives require separate 2.5-to-3.5-inch mounting brackets.
- HDMI output requires a host USB-C port with video support and a USB-C-to-C connection.
- The enclosure is a direct-attached storage device rather than a standalone network NAS.
The WAVLINK stands out when speed and workstation versatility matter. Its 10Gbps USB-C interface, cooling system, and HDMI capability make it a strong fit for demanding file-transfer and desktop setups, provided the host supports the required video features.
Simple Desktop Storage – CENMATE 4-Bay USB 3.0 Enclosure
This CENMATE is a practical nas enclosure with four bays for expanding a desktop or laptop’s storage through USB 3.0. It accepts 2.5-inch and 3.5-inch SATA HDDs or SSDs, supports up to 80TB total, and includes both USB-A and USB-C cables for broad compatibility.
Best For: Buyers who need straightforward, plug-and-play four-drive storage without RAID or NAS functions.
Pros:
- Four bays accommodate 2.5-inch and 3.5-inch SATA HDDs or SSDs.
- Supports up to 80TB total capacity with up to 20TB per drive.
- USB 3.0 provides transfer rates up to 5Gbps under UASP.
- Aluminum housing and a built-in 2-inch fan assist with cooling.
Cons:
- Fan noise is approximately 40–50 decibels, according to the supplied notes.
- It does not provide RAID or NAS functionality.
- USB 3.0 is slower than newer 10Gbps interfaces.
Choose this model for uncomplicated external storage rather than advanced array management. Its broad Windows, Mac, and Linux compatibility and included USB-A/C cables make it easy to integrate, while the fan noise is worth considering for quiet workspaces.
RAID-Focused Storage – CENMATE 4-Bay RAID Enclosure
For users comparing a nas enclosure with four bays and needing drive-management options, this CENMATE adds eight selectable RAID modes to a four-bay SATA enclosure. It supports 2.5-inch and 3.5-inch drives up to 80TB total and connects through USB 3.0 or eSATA, though its supplied notes specify important eSATA and RAID limitations.
Best For: Users who want external four-drive storage with RAID, cloning, large-volume, and normal modes.
Pros:
- Offers RAID 0, 1, 3, 5, and 10, plus CLONE, LARGE, and NORMAL modes.
- Supports four 2.5-inch or 3.5-inch SATA HDDs or SSDs up to 80TB total.
- Provides USB 3.0 and eSATA connectivity with a built-in cooling fan.
- Aluminum construction and a 12V power adapter support a stable desktop setup.
Cons:
- Hot-swapping is not supported.
- Changing RAID modes requires a specific power-off, switch, and reset procedure and may cause data loss.
- eSATA access to multiple bays requires a computer eSATA port with RAID support; otherwise, only one bay may be accessible.
This enclosure is the most feature-rich option here for users who specifically need hardware RAID-style modes. Its setup requires more care than a basic DAS, and the lack of hot-swapping plus the eSATA requirements should be reviewed before purchase.
How We Picked the Best Nas Enclosure with Four Bays
We focused on the features that most affect everyday storage use: drive compatibility, RAID support, connection speed, network capability, expandability, cooling, ease of installation, and intended audience. The list includes both complete NAS platforms and diskless direct-attached storage enclosures because they solve different problems.
A true NAS connects to your network and can provide shared folders, remote access, backup tools, media services, and user management. A DAS typically connects directly to one computer over USB or eSATA, making it simpler and often more affordable. Products listed as diskless require you to supply compatible drives.
Quick Comparison
| Type | Best For | Important Features |
|---|---|---|
| Network-attached NAS | Shared storage, backups, and remote access | NAS operating system, Ethernet networking, apps, user accounts |
| USB or eSATA DAS | Local storage expansion and direct backups | RAID modes, USB-C or USB-A, simpler setup |
| Performance-focused NAS | Creators, offices, and demanding file transfers | Faster processors, more memory, high-speed networking |
| Entry-level enclosure | Home users and basic storage pooling | Tool-free bays, cooling, straightforward controls |
Key Buying Factors for a Nas Enclosure with Four Bays
NAS or DAS Functionality
Choose a NAS if several computers, phones, or users need access over your network. Choose a DAS if you mainly want additional storage for one workstation or laptop. A DAS does not normally provide the same built-in apps, remote access, or multi-user management as a NAS.
Drive Compatibility and Capacity
Check whether the enclosure supports 3.5-inch hard drives, 2.5-inch drives, SATA SSDs, or all three. Also verify the stated maximum capacity and whether that limit applies per bay or to the complete enclosure. Diskless models give you more flexibility, but drives are purchased separately.
RAID and Data Protection
Four bays can support useful layouts such as RAID 5 for a balance of capacity and redundancy, RAID 6 where supported for additional protection, RAID 10 for performance, or single-drive/JBOD configurations for flexibility. RAID is not a backup, so keep a separate copy of important files.
Connectivity and Performance
USB 3.2, USB-C, eSATA, and multi-gigabit Ethernet can reduce transfer bottlenecks, but real-world speed also depends on the drives, host computer, network equipment, and file sizes. For media libraries and routine backups, capacity and reliability may matter more than peak interface speed.
Cooling, Noise, and Usability
Look for active cooling, temperature-controlled fans, hot-swappable bays, tool-free trays, and clear drive-status indicators. These features make a noticeable difference when the enclosure operates continuously in a home office or shared workspace.
Who Should Buy Which Nas Enclosure with Four Bays?
Choose a full NAS such as the QNAP, UGREEN, or TERRAMASTER network models if you need shared folders, automated backups, media services, or remote access. Creators and office teams should prioritize processor performance, memory, networking, and software support. Beginners and remote workers may prefer a simpler NAS with an approachable setup process.
Choose a QNAP TR-004, TERRAMASTER D4-320, WAVLINK, or CENMATE enclosure if direct computer connection and hardware RAID are your priorities. These are practical for expanding a workstation, consolidating project files, or creating a local backup target without managing a full NAS operating system. Whichever model you select, use NAS-rated or otherwise suitable drives, plan your backup strategy before installation, and confirm compatibility with your operating system and storage requirements.