A four-bay NAS enclosure gives you room to combine multiple hard drives or SSDs into a more flexible storage system for backups, media libraries, file sharing, and business data. The right model depends on whether you need a complete networked NAS, a simple USB enclosure, or a DIY platform.
We compared these 10 options across connectivity, drive support, RAID capabilities, cooling, expandability, ease of setup, and overall suitability for different users. Use the guide below to narrow the list by performance, control, and budget.
Best 10 Nas Enclosure with Four Bays Picks for 2026
Professional Powerhouse
- Intel Core i3 processor with expandable DDR5 memory
- 10GbE and 2.5GbE networking for fast transfers
- VM, Docker, RAID, and dual M.2 SSD support
Best For: Power users, developers, and demanding office workflows
Connected Storage Hub
- Four SATA bays support HDDs and SSDs
- 10Gbps USB-C connectivity
- 4K HDMI output and temperature-controlled cooling
Best For: Desktop users seeking expandable direct-attached storage
Creator-Centered NAS
- Ryzen processor with expandable DDR4 memory
- Dual 10GbE ports and up to 144TB capacity
- SD backup, surveillance, Docker, and VM support
Best For: Creators and small teams managing media and backups
Quiet Direct Storage
- USB 3.2 Gen2 connectivity up to 10Gbps
- Four individual SATA drives, up to 120TB total
- Tool-free, hot-swappable, and quiet operation
Best For: Plug-and-play direct storage across Windows, Mac, and Linux
Best Beginner Pick
- AI photo backup and smart album tools
- 8GB RAM with 2.5GbE networking
- Beginner-friendly setup and remote access
Best For: Families and home users building a private cloud
Best USB RAID Enclosure
- USB Type-C direct-attached storage
- Hardware RAID 0, 1, 5, JBOD, and individual disks
- Four lockable 3.5-inch bays
Best For: Local RAID storage and QNAP NAS backups
Best Performance-Focused Homelab Pick
- Intel N100 with 8GB DDR4 RAM
- Dual 2.5GbE, 4K HDMI, and NVMe slots
- Docker and compatible third-party OS support
Best For: Home media servers and flexible homelabs
Best High-Speed DAS
- 10Gbps USB-C connectivity
- Four independent drive connections
- Tray-less hot-swap design
Best For: Fast direct-attached storage for up to four SATA drives
Best DIY NAS Build
- Mini-ITX motherboard support
- Four main bays plus one internal bay
- PCIe expansion-card support
Best For: Custom NAS and private-cloud builds
Best Budget USB Option
CENMATE Aluminum 4-Bay Enclosure
- Supports 2.5- and 3.5-inch SATA drives
- USB-A and USB-C connectivity
- Tool-free hot-swappable bays
Best For: Simple, flexible four-drive DAS storage
Professional Powerhouse – UGREEN NAS DXP4800 Pro
If you need a nas enclosure with four bays for demanding workloads, the UGREEN NAS DXP4800 Pro is built for virtualization, Docker containers, development, and media-heavy work. Its Intel Core i3 processor, expandable DDR5 memory, and dual high-speed networking make it a strong choice for users who need more than basic file storage.
Best For: IT professionals, developers, video editors, and power users running VMs, containers, and large storage pools.
Pros:
- Intel Core i3-1315U processor with 8GB expandable DDR5 RAM
- 10GbE plus 2.5GbE networking for fast transfers
- Supports RAID 0, 1, 5, and 10, along with dual M.2 PCIe 4.0 SSDs
- Tool-free trays, aluminum construction, and multi-zone cooling
Cons:
- Its advanced features may be more than casual users need
- Drives are not included
The DXP4800 Pro stands out when performance, expandability, and local control matter. It is a capable four-bay platform for sophisticated home labs, creative workflows, and small-team infrastructure.
Connected Storage Hub – WAVLINK 4-Bay USB-C Enclosure
The WAVLINK enclosure is a practical nas enclosure with four bays for expanding storage directly from a desktop or laptop. It accepts 3.5-inch and 2.5-inch SATA drives, connects over 10Gbps USB-C, and adds HDMI output for a flexible workstation setup.
Best For: Users who want high-capacity direct-attached storage, hot-swappable bays, and extra display connectivity without a network operating system.
Pros:
- Four SATA bays support 3.5-inch and 2.5-inch drives
- USB 3.2 Type-C supports transfers up to 10Gbps
- Includes HDMI output up to 4K at 60Hz when the host supports video output
- Temperature-controlled fans and independent bay power switches
Cons:
- 2.5-inch drives require separate mounting brackets
- HDMI functionality depends on compatible host USB-C video output
- It is a direct-attached enclosure rather than a full NAS
Choose the WAVLINK when straightforward local expansion is the priority. Its cooling, hot-swap design, and display connectivity make it useful for media projects, large game libraries, and desktop storage upgrades.
Creator-Centered NAS – UGREEN NAS DXP4800 GT
For creators and office teams comparing a nas enclosure with four bays, the UGREEN NAS DXP4800 GT combines high-speed networking with media-focused features. It supports backups, Docker apps, surveillance storage, SD card imports, and local media workflows through the UGOS Pro platform.
Best For: Creators, tech enthusiasts, and small teams handling large media files, camera footage, backups, or local surveillance.
Pros:
- AMD Ryzen Embedded processor with 8GB expandable DDR4 RAM
- Dual 10GbE ports support fast transfers and link aggregation
- Built-in SD card slot and multiple USB ports simplify media imports
- Supports Docker, virtual machines, surveillance tools, RAID, and up to 144TB total capacity
Cons:
- Drives are not included
- Surveillance features support ONVIF/RTSP cameras specifically
- Some advanced networking benefits require compatible network equipment
The DXP4800 GT is a versatile choice for users who want storage to serve as a media hub, backup target, and local security center. Its connectivity and creator-friendly inputs make it especially adaptable.
Quiet Direct Storage – TerraMaster D4-320 DAS
The TerraMaster D4-320 is a straightforward nas enclosure with four bays for users who prefer direct-attached storage. This diskless DAS connects over USB 3.2 Gen2, supports individual drives rather than RAID, and works with Windows, Mac, and Linux systems.
Best For: Users seeking plug-and-play multi-drive storage, hot swapping, and broad computer compatibility without NAS management software.
Pros:
- USB 3.2 Gen2 Type-C delivers up to 10Gbps transmission
- Supports four individual SATA drives with up to 120TB total capacity
- Tool-free trays and hot-swappable drive replacement
- Temperature-controlled cooling and noise-reduction features
Cons:
- It has no RAID function
- It is a DAS, not a network-attached NAS
- Drives are not included
The D4-320 is best viewed as a simple, quiet storage expansion unit rather than a complete NAS. It suits users who want multiple disks accessible from one computer with minimal setup and convenient drive changes.
Best Beginner Pick – UGREEN NAS DH4300 Plus
If you want a nas enclosure with four bays for private family storage, the UGREEN NAS DH4300 Plus offers a beginner-friendly route from cloud services or external drives to a personal cloud. It supports remote access, Docker, automatic backups, photo organization, and 4K HDMI output, but it does not support virtual machines.
Best For: Families, home users, and remote workers who want simple photo backup, private storage, and multi-device access.
Pros:
- Smart photo backup with AI-powered albums, search, recognition, and duplicate removal.
- 8GB LPDDR4X RAM, a 2.5GbE port, and support for multiple simultaneous apps.
- Works across Windows, macOS, Android, iOS, web browsers, and smart TVs.
- Beginner-oriented setup with NFC connectivity, an app, manuals, and video instructions.
Cons:
- Storage drives are not included.
- Supports Docker but not virtual machines.
- The advertised storage capacity depends on separately purchased drives and the selected configuration.
The DH4300 Plus is a practical choice when ease of use and family photo management matter more than advanced virtualization. Its 2.5GbE networking and private-cloud features give it room to grow for everyday home storage.
Best USB RAID Enclosure – QNAP TR-004
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 designed primarily as direct-attached storage rather than a standalone network server. It connects over USB Type-C to Windows, macOS, or Linux computers and supports hardware RAID for local storage, backups, or capacity expansion.
Best For: Users who need a four-drive USB storage enclosure, hardware RAID, or an external backup device for a compatible QNAP NAS.
Pros:
- Hardware RAID supports RAID 0, 1, 5, JBOD, and individual-disk modes.
- Four lockable 3.5-inch SATA drive bays accommodate a flexible storage setup.
- USB Type-C connectivity works with Windows, macOS, and Linux systems.
- Can serve as external storage for NAS backups or expand a compatible QNAP NAS.
Cons:
- It is diskless, so drives must be purchased separately.
- It does not support NAS applications installed directly on the enclosure.
- Compatibility and volume behavior are limited when connecting it to certain QNAP NAS models.
The TR-004 makes sense when you want straightforward, locally attached RAID storage rather than a full-featured NAS operating system. Check QNAP compatibility carefully if you plan to use it with an existing NAS.
Best Performance-Focused Homelab Pick – Yxk Zero1 Pro 4-Bay NAS
For buyers seeking a nas enclosure with four bays and more networking headroom, the Yxk Zero1 Pro combines an Intel N100 processor, 8GB of RAM, dual 2.5GbE ports, and 4K HDMI. It supports RAID 0, 1, or 5, NVMe expansion, Docker projects, and optional third-party NAS operating systems.
Best For: Home media servers, family backups, small offices, and experienced users building a flexible homelab.
Pros:
- Intel N100 processor and 8GB DDR4 RAM suit everyday NAS and home-server workloads.
- Four SATA bays support up to four 32TB drives and RAID 0, 1, or 5.
- Dual 2.5GbE ports can support link aggregation with compatible networking equipment.
- Two M.2 NVMe slots, 4K HDMI, Docker support, and third-party OS flexibility expand its uses.
Cons:
- It is diskless; HDDs or SSDs must be purchased separately.
- Link aggregation requires compatible network equipment.
- Third-party operating-system compatibility, features, and licenses can vary.
The Zero1 Pro is the most flexible option here for users who want more than basic file storage. Its Intel platform, fast networking, NVMe slots, and software flexibility make it a strong fit for media and homelab projects, provided you are comfortable choosing and installing drives.
Best High-Speed DAS – SABRENT 4-Bay USB-C Enclosure
The SABRENT DS-SC4B is a strong choice if you need a nas enclosure with four bays for direct-attached storage rather than network access. It accepts four 3.5-inch SATA HDDs or SSDs, provides up to 10Gbps USB-C connectivity, and gives each bay an independent connection.
Best For: Users who want fast, individually managed four-drive storage for Windows, macOS, or Linux.
Pros:
- Four independent ASMedia controllers help provide stable multi-drive access.
- 10Gbps USB-C connectivity and support for up to 80TB total capacity.
- Tray-less hot-swap design with per-bay switches, activity LEDs, and active cooling.
Cons:
- It is DAS/JBOD, not a hardware RAID or NAS system.
- Drives are not included.
- Its 3.5-inch-focused design may be less convenient for users with only 2.5-inch drives.
With its metal construction, 92mm fan, locking features, and 100-240V power adapter, this is a well-equipped enclosure for high-capacity desktop storage. Choose it when USB-C speed and independent drive access matter more than built-in networking or RAID.
Best DIY NAS Build – KCMconmey 4+1 Bay NAS Case
The KCMconmey 4+1 Bay DIY case is a practical starting point for building a nas enclosure with four bays around your own hardware. It supports a Mini-ITX motherboard, Flex or 1U power supply, and four 2.5- or 3.5-inch drive trays plus one internal 2.5-inch bay.
Best For: DIY builders who want to assemble a compact NAS or private-cloud system with expansion flexibility.
Pros:
- Supports Mini-ITX motherboards and Flex or 1U power supplies.
- Includes four 2.5-/3.5-inch bays plus one additional internal 2.5-inch bay.
- Provides a single-slot, full-height PCIe expansion option and two front USB 3.0 ports.
Cons:
- It is a bare case, so motherboard, power supply, storage, and other components must be supplied separately.
- Compatibility requires careful checking of motherboard, PSU, and PCIe card dimensions.
- The included cooling is limited to one replaceable 80mm fan.
This enclosure offers more flexibility than a ready-to-use external drive box, but it requires planning and assembly. It is best suited to experienced users who want to select their own NAS hardware and software rather than buy a complete system.
Best Budget USB Option – CENMATE Aluminum 4-Bay Enclosure
The CENMATE aluminum enclosure is a straightforward option for anyone comparing a nas enclosure with four bays for USB-connected storage. It supports both 2.5- and 3.5-inch SATA HDDs or SSDs, offers tool-free hot swapping, and connects through USB-A or USB-C at up to 5Gbps.
Best For: Home and small-business users who need simple four-drive DAS storage with broad computer compatibility.
Pros:
- Supports four 2.5- or 3.5-inch SATA drives with up to 80TB total capacity.
- Includes USB-A and USB-C connectivity plus plug-and-play support for Windows, Mac, and Linux.
- Aluminum construction, tool-free drive access, and a built-in cooling fan.
Cons:
- Its 5Gbps USB 3.0 connection is slower than 10Gbps alternatives.
- It is DAS with no RAID or NAS functionality.
- The fan is rated around 40-50 decibels and may be noticeable in quiet spaces.
The CENMATE keeps the setup simple while accommodating both common drive sizes. It makes sense when compatibility and capacity are more important than maximum transfer speed, provided you are comfortable with active fan noise and direct USB access.
How We Picked the Best Nas Enclosure with Four Bays
We selected models that cover the main ways buyers use a four-drive storage system: network-attached storage, direct-attached storage, backup, media management, and custom NAS builds. Our comparison considers drive compatibility, interface speed, RAID support, cooling, hot-swap convenience, operating-system flexibility, and the amount of hardware included.
A true NAS can run services and share files over a network, while a DAS connects directly to a computer and is generally simpler. DIY cases offer the most flexibility but require compatible components, installation, and configuration.
Quick Comparison
| Best For | What to Look For | Shortlist Types |
|---|---|---|
| Power users and developers | Fast networking, expandable software, and strong processor performance | UGREEN DXP4800 Pro, Yxk Zero1 Pro |
| Creators and office teams | High-speed transfers, shared storage, and straightforward management | UGREEN DXP4800 GT, USB-C DAS models |
| Beginners and home users | Simple setup, quiet operation, and reliable backup features | UGREEN DH4300 Plus, QNAP TR-004 |
| Large local storage | USB 3.2 connectivity, cooling, and broad drive capacity | WAVLINK, SABRENT, TERRAMASTER, CENMATE |
| Custom builders | Mini-ITX compatibility, backplane access, and component flexibility | 4 + 1 Bay DIY NAS Case |
Key Buying Factors for a Nas Enclosure with Four Bays
NAS or DAS Design
Choose a networked NAS if several users, computers, or mobile devices need access without leaving one host computer running. Choose a DAS if you mainly want extra local capacity, disk redundancy, or fast transfers from one workstation.
Drive Compatibility and Capacity
Check whether the enclosure accepts both 3.5-inch hard drives and 2.5-inch SSDs, and verify its stated maximum capacity. A diskless enclosure requires you to supply compatible SATA drives, so factor in drive cost and intended workload before buying.
RAID and Data Protection
RAID 1, RAID 5, and RAID 10 can provide varying balances of redundancy, usable capacity, and speed. RAID is not a substitute for a separate backup. Confirm whether RAID is handled in hardware, through the NAS operating system, or by the connected computer.
Connectivity and Cooling
USB 3.0, USB 3.2, and 10Gbps USB-C can reduce transfer times when the computer and cable support the same standard. For continuous use, prioritize temperature-controlled fans, unobstructed airflow, and accessible drive bays.
Who Should Buy Which Nas Enclosure with Four Bays?
Buy a complete NAS such as the UGREEN or Yxk option if you want network services, remote access, applications, or multi-user file sharing. A QNAP or other USB DAS is a better fit for straightforward desktop backups and hardware RAID without managing a full server platform.
Creators moving large media files should prioritize 10Gbps connectivity and SSD compatibility. Home users and remote workers generally benefit from simple software, quiet cooling, and dependable redundancy. Choose the DIY case only if you are comfortable selecting a motherboard, processor, power supply, operating system, and storage drives yourself.
