A four-bay enclosure gives you more room to balance capacity, redundancy, performance, and future expansion than a typical two-drive system. The options in this roundup range from straightforward USB DAS products to full-featured network-attached storage appliances.
Use the buying guide below to compare drive support, RAID options, networking, software, memory, and ease of use before choosing the best NAS enclosure with four bays for your setup.
Best 10 Nas Enclosure with Four Bays Picks for 2026
Best All-Around Pick
- 10GbE networking and 8GB DDR5 RAM
- RAID, Docker, virtual machines, and backups
- AI photo tools with broad device support
Best For: Families, creators, and small teams needing versatile private storage
Best Direct-Attached Option
- USB Type-C direct-attached storage
- Hardware RAID 0, 1, 5, JBOD, and individual disks
- Lockable four-drive bays
Best For: Computer users and QNAP owners wanting simple external storage or expansion
Best for Power Users
- Intel Core i3-1315U and expandable DDR5 RAM
- 10GbE plus 2.5GbE networking
- Docker, VMs, RAID, and dual M.2 slots
Best For: Developers, IT professionals, editors, and demanding home labs
Best Simple USB Enclosure
- USB 3.2 Gen 2 10Gbps connectivity
- Four individual disks with hot swapping
- Tool-free trays and quieter cooling design
Best For: Users wanting plug-and-play direct-attached storage without RAID
Best for Creators
- Ryzen processor with expandable RAM
- Dual 10GbE and SSD expansion
- Media, surveillance, and backup tools
Best For: Creators, enthusiasts, and small office teams
Best DAS Expansion
- Eight RAID configuration modes
- Supports up to 88TB total
- USB 3.0 direct-attached storage
Best For: Desktop and laptop storage expansion
Best for Home and Small Business
- Quad-core Intel CPU with 8GB RAM
- Dual 2.5GbE network ports
- M.2 NVMe and USB 3.2 expansion
Best For: Families and small teams sharing files and media
Best Overall
- Private cloud with remote file sharing
- Snapshots and multi-destination backups
- Surveillance support for up to 30 cameras
Best For: Home users, teams, and small businesses
Best for Media
- Intel quad-core CPU with 4GB RAM
- 2.5GbE and 4K media support
- Quiet, tool-free four-bay design
Best For: Media streaming and fast multi-user transfers
Best for RAID Flexibility
- Supports RAID 0/1/5/6/10
- Btrfs snapshots and WORM protection
- 2.5GbE with 4K streaming support
Best For: Home and small-office RAID storage
Best All-Around Pick – UGREEN DXP4800 Plus
For families, creators, and small teams seeking a capable nas enclosure with four bays, the UGREEN DXP4800 Plus combines 10GbE networking, 8GB DDR5 memory, RAID support, and a private-cloud operating experience. It is diskless, so compatible hard drives or SSDs must be purchased separately.
Best For: Households and small teams that want fast centralized storage, backups, remote access, and advanced features such as Docker and virtual machines.
Pros:
- 10GbE and 10Gbps USB connectivity support fast transfers.
- Supports RAID options, remote access, automatic backups, Docker, and virtual machines.
- AI-powered photo organization and broad device compatibility add convenience.
- Includes 8GB DDR5 RAM, a 128GB SSD, 4K HDMI, and a two-year warranty.
Cons:
- Hard drives or SSDs are not included.
- It requires wired Ethernet and does not support Wi-Fi.
- Actual speeds depend on the network, drives, processor, and file sizes.
The DXP4800 Plus is a well-rounded option when you want more than basic file storage. Its fast networking and broad software feature set make it suitable for mixed household, creative, and small-office workloads.
Best Direct-Attached Option – 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 straightforward nas enclosure with four bays for users who prefer direct USB-attached storage rather than a standalone network operating system. It is diskless and connects to Windows, macOS, or Linux computers through USB Type-C.
Best For: Users who need external storage, a QNAP NAS expansion unit, or hardware RAID in a compact four-bay enclosure.
Pros:
- Hardware RAID supports RAID 0, 1, 5, JBOD, and individual disks.
- USB Type-C connection works with Windows, macOS, and Linux.
- Lockable bays accommodate four 3.5-inch SATA drives.
- Can serve as external storage or expand a compatible QNAP NAS.
Cons:
- It is a DAS rather than a standalone NAS and cannot run NAS applications.
- It is diskless, requiring separate drives.
- Compatibility and storage-pool limitations apply when connecting it to certain QNAP NAS models.
The TR-004 makes sense when simplicity and hardware RAID matter more than network services. Confirm QNAP compatibility before purchase, especially if you plan to use it as a NAS expansion unit.
Best for Power Users – UGREEN DXP4800 Pro
The UGREEN DXP4800 Pro is a performance-focused nas enclosure with four bays for demanding office, development, virtualization, and media workflows. Its Intel Core i3-1315U processor, expandable DDR5 memory, dual high-speed network ports, and dual M.2 slots give it more headroom than a basic file server. Drives are sold separately.
Best For: IT professionals, developers, video editors, and power users running Docker containers, virtual machines, large photo libraries, or demanding shared storage.
Pros:
- Intel Core i3-1315U processor with 8GB expandable DDR5 RAM.
- 10GbE and 2.5GbE ports support transfers up to 1.25GB/s under suitable conditions.
- Dual M.2 PCIe 4.0 slots can provide caching or additional storage.
- Supports RAID 0, 1, 5, and 10, along with encryption and granular permissions.
Cons:
- Hard drives and SSDs are not included.
- The advanced hardware and software may be more than basic storage users need.
- Performance depends on the network, drives, and workload.
Choose the DXP4800 Pro when virtualization, containers, fast transfers, and expansion potential are central to your setup. Its cooling design and tool-free trays also suit users planning continuous operation and frequent drive maintenance.
Best Simple USB Enclosure – TerraMaster D4-320
The TerraMaster D4-320 is a USB DAS rather than a network-attached server, but it can fit a buyer’s search for a simple nas enclosure with four bays when direct computer access is the priority. It supports four individual SATA disks, hot swapping, and USB 3.2 Gen 2 connectivity without requiring drivers.
Best For: Windows, Mac, and Linux users who want plug-and-play four-drive storage without RAID or NAS applications.
Pros:
- USB 3.2 Gen 2 Type-C offers up to 10Gbps connectivity.
- Supports four individual 3.5-inch or 2.5-inch SATA drives and hot swapping.
- Tool-free trays simplify drive installation and removal.
- Temperature-controlled cooling and sound-reduction features support quieter operation.
Cons:
- It is a DAS, not a NAS, and has no RAID function.
- Drives are not included.
- Each disk is presented individually rather than combined into a managed storage pool.
The D4-320 is a practical choice for direct-attached capacity and easy drive access. Avoid it if you need built-in RAID, network sharing, or NAS applications; its strength is uncomplicated USB storage.
Best for Creators – UGREEN DXP4800 GT
If you need a capable nas enclosure with four bays for demanding creative work, the UGREEN DXP4800 GT combines a Ryzen Embedded processor, expandable memory, dual 10GbE, and broad storage support. It is designed for fast file transfers, media workflows, backups, apps, and multi-user access.
Best For: Creators, tech enthusiasts, and small office teams needing fast networking, media storage, surveillance, and expandable local storage.
Pros:
- Ryzen quad-core processing, 8GB DDR4 RAM, and expansion up to 64GB support multitasking.
- Dual 10GbE ports, SSD expansion, and 4K HDMI support high-speed media workflows.
- Built-in SD backup, surveillance features, Docker, virtual machines, and self-hosted apps add flexibility.
- Four SATA bays, U.2 compatibility in up to two bays, and two M.2 slots allow substantial expansion.
Cons:
- Hard drives and SSDs are not included.
- Advanced networking speeds require compatible network equipment.
- Its extensive feature set may be more than basic file-storage users need.
The DXP4800 GT is a strong choice when a four-bay NAS must handle more than backups. Its combination of 10GbE, expandable memory, media tools, and local security features makes it particularly appealing for performance-focused home labs and creative teams.
Best DAS Expansion – ORICO 9848RU3 4-Bay Enclosure
The ORICO 9848RU3 is a straightforward nas enclosure with four bays for users who primarily want direct-attached storage rather than a full network operating system. Its four 3.5-inch SATA bays, eight RAID modes, and USB 3.0 connection make it useful for expanding a desktop or laptop’s storage.
Best For: Users who want high-capacity, directly connected storage for backups, large media collections, or project files on Windows, macOS, or Linux.
Pros:
- Supports RAID 0, 1, 3, 5, 10, JBOD, CLONE, and CLEAR configurations.
- Accepts four 3.5-inch SATA drives, with support for drives up to 22TB each and 88TB total.
- Aluminum construction, an 80mm cooling fan, front and rear vents, and a built-in 150W power supply support sustained operation.
- Trayless access and independent safety locks simplify drive installation and handling.
Cons:
- USB 3.0 connectivity is rated at up to 5Gbps, below newer 10GbE NAS networking.
- It is direct-attached storage, not a standalone network NAS with its own apps and services.
- It supports 3.5-inch SATA disks rather than the broader SSD and NVMe options offered by some NAS units.
Choose the ORICO when simple, high-capacity DAS expansion is the priority. Its RAID flexibility and 88TB maximum make it practical for local storage and backup, but buyers wanting remote access or NAS software should consider a networked model instead.
Best for Home and Small Business – QNAP TS-464 4-Bay NAS
The QNAP TS-464 is a practical nas enclosure with four bays for centralized file sharing, media organization, and business storage. Its quad-core Intel processor, 8GB of RAM, dual 2.5GbE ports, and dual M.2 slots provide a balanced platform for everyday NAS workloads.
Best For: Families, home users, and small teams that need shared storage, faster network transfers, and room for cache or SSD storage pools.
Pros:
- Quad-core Intel N5105/N5095 processing and 8GB DDR4 RAM support general NAS tasks.
- Dual 2.5GbE ports improve file sharing and large-file transfers across compatible networks.
- Two PCIe Gen3x2 M.2 NVMe slots support cache acceleration or SSD storage pools.
- USB 3.2 Gen 2 ports provide up to 10Gbps connectivity for compatible external drives and expansion enclosures.
Cons:
- Its 2.5GbE networking is slower than the 10GbE connectivity on some higher-performance four-bay NAS models.
- Drives are not specified as included in the supplied product information.
- Its desktop form factor requires a suitable location and network connection.
The TS-464 offers a well-rounded balance for shared household or small-business storage. It is a sensible pick for buyers who want network access, M.2 acceleration, and fast USB expansion without stepping up to a more specialized high-bandwidth system.
Best Overall – Synology DS423
The Synology DS423 is a versatile nas enclosure with four bays for home users, teams, and small businesses that need private file sharing, backup, and surveillance features. Its software-focused approach includes snapshots, multi-destination backups, permission controls, and remote access.
Best For: Families, home offices, and small businesses seeking secure file management and backup tools.
Pros:
- Supports private-cloud file and media access from anywhere.
- Offers snapshots, versioned files, and multi-destination backup strategies.
- Includes monitoring and archiving tools for up to 30 IP cameras, with camera licenses purchased separately.
- Backed by a 2-year warranty and ongoing software updates.
Cons:
- Diskless, so drives must be purchased separately.
- Additional camera licenses are required for surveillance use.
The DS423 is a strong choice when dependable file organization and data protection matter more than headline hardware specifications. Its mature backup and sharing features make it a practical four-bay foundation for mixed home and business workloads.
Best for Media – TERRAMASTER F4-425
The TERRAMASTER F4-425 is a performance-oriented nas enclosure with four bays, an Intel x86 quad-core processor, 4GB of RAM, and 2.5GbE networking. It is designed for fast transfers, multitasking, 4K media playback, and convenient mobile-managed backups.
Best For: Home media libraries, multi-user file transfers, and users who want faster-than-gigabit networking.
Pros:
- Intel quad-core processing and 4GB RAM support multitasking and 4K transcoding.
- 2.5GbE enables faster file transfers and concurrent user access.
- Works with Plex, Emby, Jellyfin, and DLNA for media streaming.
- Tool-free push-lock trays and a rated operating noise level of 21dB(A).
Cons:
- Diskless, so storage drives are not included.
- Plastic enclosure material may feel less substantial than metal alternatives.
With support for up to 120TB, TRAID or TRAID+, cloud synchronization, and mobile setup, the F4-425 offers a well-rounded multimedia platform. It is especially compelling for households that value responsive networking and straightforward drive installation.
Best for RAID Flexibility – Asustor Drivestor 4 Gen 2
The Asustor Drivestor 4 Gen 2 AS1204T is a nas enclosure with four bays that combines 2.5GbE networking, broad RAID support, and personal-cloud features. Its Btrfs snapshots and WORM technology add protection for files that need recovery and immutability.
Best For: Home and small-office users who want flexible RAID options, remote access, and ransomware-conscious data protection.
Pros:
- Supports RAID 0/1/5/6/10 for flexible capacity and redundancy choices.
- 2.5GbE improves file transfers, backups, and media streaming over standard gigabit networking.
- Btrfs snapshots and WORM help protect against accidental deletion and ransomware.
- Supports 4K streaming, personal-cloud access, and tool-free installation.
Cons:
- Includes 1GB of DDR4 RAM, less than some competing four-bay models.
- Diskless, so compatible drives must be added separately.
The AS1204T is a practical option for buyers who prioritize storage redundancy and data recovery features. Its 2.5GbE port and home-cloud capabilities further suit users managing backups and media across several devices.
How We Picked the Best Nas Enclosure with Four Bays
We focused on the features that matter most in a four-drive storage system: drive compatibility, RAID support, connection speed, operating system and management tools, upgrade potential, noise, and intended use. The list includes both NAS appliances that operate over a network and DAS enclosures that connect directly to a computer, because those products solve different storage problems.
We also considered whether each model is better suited to home backups, media libraries, creative workflows, office file sharing, surveillance, or technically minded users who want more control. Diskless models require separately purchased drives, so budget for four NAS-rated or enterprise drives if you plan to populate every bay.
Quick Comparison
| Best For | What to Prioritize | Recommended Type |
|---|---|---|
| Simple local expansion | USB speed, hardware RAID, quiet operation | DAS enclosure |
| Family backups and photo storage | Easy setup, apps, remote access | Entry-level NAS |
| Creative work and large files | Fast networking, caching, CPU performance | Performance NAS |
| Small offices | User permissions, snapshots, backup tools | Business-oriented NAS |
| Flexible drive management | RAID choices and expansion options | NAS or advanced DAS |
Key Buying Factors for a Nas Enclosure with Four Bays
NAS Versus DAS
A NAS connects to your router or switch and can serve multiple computers, phones, media players, and backup clients. A DAS connects directly to one host, usually over USB, and is often simpler and less expensive. Choose DAS for local capacity; choose NAS for shared storage, remote access, and always-on services.
RAID and Data Protection
Four bays support useful layouts such as RAID 5 for a balance of capacity and redundancy, RAID 6 for stronger protection, RAID 10 for performance, and separate volumes for specialized workloads. RAID is not a backup. Keep another copy on an external drive, cloud service, or second NAS.
Network and Port Performance
Gigabit Ethernet is adequate for routine backups and document sharing, while 2.5GbE or faster networking is more appropriate for large video projects, multiple users, and frequent transfers. Faster ports only help when your computer, switch, cabling, and storage drives support them too.
Software, Memory, and Expandability
Compare the operating system, mobile apps, snapshot support, synchronization tools, virtualization features, and surveillance compatibility. More RAM and a stronger processor help with indexing, containers, transcoding, and simultaneous users. Check whether memory is upgradeable and whether expansion units or USB backup devices are supported.
Who Should Buy Which Nas Enclosure with Four Bays?
Choose a DAS such as the QNAP TR-004, TerraMaster D4-320, or ORICO enclosure if you want affordable, direct-attached capacity without running network services. Families and home users should favor an approachable NAS with reliable backup and photo tools, such as the Synology, Asustor, or entry-level TerraMaster options. Creators and power users should look toward the higher-performance UGREEN models or QNAP TS-464, especially when fast networking and heavier multitasking matter. Small teams should prioritize permissions, snapshots, remote access, and vendor support over maximum headline capacity.