A four-bay enclosure gives you more room to expand than a two-drive system while keeping storage manageable for home users, creators, remote workers, and small teams. The products in this roundup range from network-attached storage platforms with apps and remote access to simpler USB-C and RAID enclosures.
Before choosing, consider whether you need a full NAS operating system or direct-attached storage, along with drive compatibility, RAID options, connection speed, noise, and backup features. The right model can balance capacity, performance, and ease of use without paying for features you will not need.
Best 10 Nas Enclosure with Four Bays Picks for 2026
Best Performance
- 10GbE and 2.5GbE networking
- Docker and virtual-machine support
- Up to 144TB with compatible drives
Best For: Creators, small teams, and advanced home users
Best Direct Expansion
- Four SATA bays for HDDs or SSDs
- 10Gbps USB-C connectivity
- Cooling fans and 4K HDMI output
Best For: Computer users needing high-capacity local storage
Best for Beginners
- Simple private-cloud setup
- AI photo backup and organization
- 2.5GbE networking and 128TB support
Best For: Families, beginners, and remote workers
Best Budget DAS
QNAP TR-004 4-Bay RAID Enclosure
- Hardware RAID 0, 1, 5, and JBOD
- USB Type-C direct-attached storage
- Works with Windows, macOS, and Linux
Best For: Simple local storage and compatible QNAP expansion
Performance Powerhouse
- Intel Core i3-1315U with expandable DDR5 RAM
- 10GbE plus 2.5GbE networking
- RAID, Docker, VMs, and dual M.2 support
Best For: Power users and demanding professional workflows
Simple DAS Expansion
SABRENT DS-SC4B 4-Bay Enclosure
- Four independent SATA drive bays
- USB-C 10Gbps direct-attached storage
- Trayless hot-swap design with active cooling
Best For: Direct-attached multi-drive storage
Backup and Private Cloud
- Private-cloud file access and sharing
- Snapshots and versioned backup protection
- Surveillance support for up to 30 IP cameras
Best For: Families and small businesses needing secure backups
Best Overall
- Ryzen-based performance with expandable RAM
- Dual 10GbE and SSD expansion support
- Apps, surveillance, and up to 144TB stated capacity
Best For: Creators, enthusiasts, and small office teams
Best Simple DAS
- Four SATA bays for 2.5- and 3.5-inch drives
- USB 3.0 with up to 5Gbps stated transfer rate
- Tool-free design with cooling fan
Best For: Direct-attached storage for Windows, Mac, or Linux
Best RAID DAS
- Eight selectable modes, including RAID 0/1/3/5/10
- USB 3.0 and eSATA connectivity
- Supports four SATA drives and up to 80TB stated capacity
Best For: Direct-attached RAID storage users
Best Performance – UGREEN DXP4800 Plus 4-Bay NAS
If you need a nas enclosure with four bays for demanding home or small-office workloads, the UGREEN DXP4800 Plus offers a strong feature set. It combines an Intel 5-Core CPU, 8GB DDR5 RAM, 10GbE and 2.5GbE networking, Docker and virtual-machine support, plus up to 144TB of advertised capacity with compatible drives. Hard drives are sold separately.
Best For: Creators, small teams, and advanced home users who want fast transfers, private-cloud features, and room for demanding applications.
Pros:
- 10GbE networking and 10Gbps USB ports support fast file transfers.
- Supports Docker, virtual machines, RAID options, and remote access.
- Includes 8GB DDR5 RAM, 128GB SSD, 4K HDMI, and AI-powered photo organization.
- Works across Windows, macOS, Linux, iOS, Android, and web browsers.
Cons:
- Storage drives are not included.
- Wired Ethernet is required; this model does not support Wi-Fi.
- Actual speeds depend on the network, drives, processor, and file sizes.
The DXP4800 Plus is the most capable option here for users who value processing headroom and high-speed networking. Its advanced features may be more than casual users need, but they provide useful flexibility for collaboration, backups, and media workflows.
Best Direct Expansion – WAVLINK 4-Bay USB-C Enclosure
The WAVLINK is a practical nas enclosure with four bays for expanding storage directly from a computer. Unlike a networked NAS, it connects over USB-C and supports four SATA 6Gbps bays for 3.5-inch or 2.5-inch drives, with up to 128TB claimed capacity. It is an enclosure and docking station rather than a standalone NAS, so it requires a connected host.
Best For: Desktop users who want high-capacity direct-attached storage, USB-C transfers, and HDMI connectivity.
Pros:
- Four bays support 3.5-inch and 2.5-inch SATA HDDs and SSDs.
- USB 3.2 Type-C supports transfer rates up to 10Gbps.
- Built-in fans activate at 48°C to help manage drive temperatures.
- Independent bay power switches and HDMI output add convenience.
Cons:
- It requires a compatible computer and is not a standalone network NAS.
- 2.5-inch drives need additional mounting brackets, which are not included.
- HDMI output requires a host USB-C port with video support and a USB-C-to-C cable.
Choose the WAVLINK when direct-attached storage is more important than remote NAS access. Its cooling, flexible drive support, and 10Gbps USB-C connection make it well suited to large local libraries and file transfers.
Best for Beginners – UGREEN NAS DH4300 Plus 4-Bay
The UGREEN DH4300 Plus is an approachable nas enclosure with four bays for families, home users, and remote workers. It provides private storage, automatic phone backups, remote access, and AI-assisted photo organization, while its 2.5GbE port and 8GB LPDDR4X RAM support everyday multitasking. Drives are not included.
Best For: Beginners and families moving from cloud storage or external drives to a private home storage system.
Pros:
- Beginner-focused setup with broad Windows, macOS, Android, iOS, browser, and smart-TV support.
- Automatic phone photo and video backup with AI album organization.
- 2.5GbE networking, 8GB LPDDR4X RAM, and 4K HDMI output.
- Supports Docker and offers up to 128TB with compatible disks.
Cons:
- It supports Docker but not virtual machines.
- Storage disks must be purchased separately.
- Advertised capacity and transfer speeds depend on the installed drives and network.
The DH4300 Plus focuses on easy private storage rather than advanced virtualization. It is a sensible starting point for organizing family photos, backing up phones, and accessing files across multiple devices without recurring cloud fees.
Best Budget DAS – QNAP TR-004 4-Bay RAID Enclosure
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 direct-attached storage over USB Type-C. It accepts four 3.5-inch SATA drives and provides hardware RAID modes including RAID 0, 1, 5, JBOD, and individual disks. It can also expand a compatible QNAP NAS, but it does not run NAS applications itself.
Best For: Users who want simple USB storage, hardware RAID, or additional capacity for a compatible QNAP NAS.
Pros:
- Four drive bays support hardware RAID 0, 1, 5, JBOD, and individual disks.
- USB Type-C connection works with Windows, macOS, and Linux systems.
- Lockable drive bays and included mounting hardware improve practicality.
- Can serve as external storage or expand a compatible QNAP NAS.
Cons:
- It is direct-attached storage, not a standalone NAS with installable applications.
- Compatibility restrictions apply to certain older QNAP NAS models.
- Data pools or volumes on the enclosure cannot be combined with the connected NAS.
The TR-004 is a good fit when you need dependable local storage and RAID without the complexity of a full NAS operating system. Confirm compatibility if connecting it to an existing QNAP NAS, especially an older model.
Performance Powerhouse – UGREEN DXP4800 Pro
For demanding users seeking a nas enclosure with four bays, the UGREEN DXP4800 Pro combines four hard-drive bays with strong processing, fast networking, and expansion options. Its Intel Core i3-1315U processor, 8GB of DDR5 RAM, 10GbE and 2.5GbE ports, and dual M.2 slots make it suited to more than basic file storage.
Best For: Developers, video editors, IT professionals, and power users running virtual machines, Docker containers, or large media libraries.
Pros:
- Intel processor, expandable DDR5 memory, and support for virtual machines and Docker.
- 10GbE and 2.5GbE networking can deliver high-speed transfers.
- Supports RAID 0, 1, 5, and 10, plus dual M.2 SSDs for caching or storage.
- Tool-free drive trays, aluminum construction, and multi-zone cooling support easier 24/7 use.
Cons:
- Its advanced features may be more than casual backup users need.
- Hard drives are not specified as included, so storage costs can add up.
The DXP4800 Pro is the most capable option here for performance-heavy workloads. Choose it when virtualization, fast transfers, and flexible storage expansion matter more than keeping the setup simple.
Simple DAS Expansion – SABRENT DS-SC4B 4-Bay Enclosure
If you need a nas enclosure with four bays but do not need a full network operating system, the SABRENT DS-SC4B is a direct-attached alternative. It connects up to four 3.5-inch SATA HDDs or SSDs to a computer over USB-C at up to 10Gbps, with each drive presented independently.
Best For: Users who want convenient multi-drive storage connected directly to a Windows, macOS, or Linux computer.
Pros:
- Four independent drive connections through a USB-C 10Gbps interface.
- Trayless hot-swap design makes drive installation tool-free.
- Per-bay power switches, activity LEDs, locking key, and Kensington slot add convenience and security.
- Aluminum-and-metal housing with a 92mm fan supports continuous operation.
Cons:
- This is DAS/JBOD, not a hardware RAID enclosure.
- It does not provide the built-in network services of a traditional NAS.
- Drives are not included.
The DS-SC4B is a practical choice for expanding local computer storage without configuring a separate NAS platform. Its main limitation is the lack of hardware RAID and network-based file sharing, so it is best for direct-attached use.
Backup and Private Cloud – Synology DS423 4-Bay NAS
The Synology DS423 is a four-bay diskless NAS enclosure focused on secure file sharing, backups, and private-cloud access. It can centralize documents and media, provide versioned and snapshot-based protection, and support video surveillance for up to 30 IP cameras with separately purchased licenses.
Best For: Families, small businesses, and teams that prioritize centralized backups, file sharing, and straightforward NAS services.
Pros:
- Private-cloud access and file sharing from anywhere.
- Snapshots, versioned files, and multi-destination backups help protect data.
- Supports team folders and permission controls for shared workspaces.
- Surveillance tools support up to 30 IP cameras, subject to separately purchased licenses.
Cons:
- It is diskless, so drives must be purchased separately.
- Additional camera licenses are required for surveillance beyond the included allowance.
- It is positioned more for backup and file services than high-performance virtualization.
The DS423 is a balanced four-bay NAS for households and businesses that want dependable backup workflows and private file sharing. Its software ecosystem and protection features make it a stronger fit for organization and data safety than performance-intensive workloads.
Best Overall – UGREEN DXP4800 GT 4-Bay NAS
The UGREEN DXP4800 GT is a full-featured nas enclosure with four bays for creators, tech enthusiasts, and office teams. Its Ryzen processor, expandable memory, dual 10GbE networking, and support for apps, backups, media workflows, and surveillance make it suited to demanding multi-user storage setups.
Best For: Creators and small teams that need fast networking, expandable storage, and self-hosted applications.
Pros:
- Ryzen R2514 processor, 8GB RAM, and memory expansion up to 64GB
- Dual 10GbE ports, SSD expansion, and support for local 4K/8K editing workflows
- Supports Docker, virtual machines, surveillance, SD-card backup, and up to 144TB of stated capacity
Cons:
- Drives are not included
- Its extensive features may be more than basic file-storage users need
- Some advanced networking and application features require compatible equipment or setup
This is the most capable option of the three for users building a complete NAS environment rather than simply attaching extra disks. The combination of four SATA bays, NVMe options, high-speed networking, and a broad software platform gives it room to grow.
Best Simple DAS – CENMATE 4-Bay USB Enclosure
The CENMATE 4-Bay Hard Drive Enclosure is a straightforward alternative to a network-attached system. Although it is not a NAS, this nas enclosure with four bays comparison pick provides direct USB storage for 2.5- and 3.5-inch SATA drives, with tool-free access and a compact aluminum design.
Best For: Users who want several drives connected directly to a Windows, Mac, or Linux computer without NAS software.
Pros:
- Accepts four 2.5- or 3.5-inch SATA HDDs or SSDs
- USB 3.0 with USB-A and USB-C cable support and stated speeds up to 5Gbps
- Tool-free, hot-swappable design with aluminum construction and a built-in cooling fan
Cons:
- It is DAS, not NAS, and does not provide network storage or RAID
- Fan noise is rated around 40–50 decibels
- Actual capacity depends on the installed drives; drives are not listed as included
Choose this enclosure when direct-attached storage is the priority. It keeps the setup relatively simple and supports a stated total capacity of up to 80TB, but it lacks the network access and storage-management features of a true NAS.
Best RAID DAS – CENMATE 4-Bay RAID Enclosure
The CENMATE 4-Bay RAID Enclosure is designed for direct-attached storage with selectable drive modes. For shoppers considering a nas enclosure with four bays, it offers four SATA bays, USB and eSATA connectivity, and eight modes including RAID 0, 1, 3, 5, and 10—but it remains a DAS enclosure rather than a network NAS.
Best For: Computer users who want configurable RAID storage connected directly over USB 3.0 or compatible eSATA hardware.
Pros:
- Supports four 2.5- or 3.5-inch SATA HDDs or SSDs and up to 80TB stated capacity
- Offers RAID 0/1/3/5/10, CLONE, LARGE, and NORMAL modes
- Includes USB-A/USB-C 3.0 and eSATA connectivity with aluminum cooling design
Cons:
- It is DAS, not NAS, so it does not provide standalone network access
- Changing RAID modes can cause data loss and requires a manual switching procedure
- eSATA multi-bay access requires a computer port with RAID support; hot-swapping is not supported
This enclosure is more flexible than a basic multi-drive reader if you specifically need hardware RAID modes. However, the setup demands careful attention to compatibility and data protection, particularly when changing modes or using eSATA.
How We Picked the Best Nas Enclosure with Four Bays
We selected these four-bay storage solutions by comparing their intended use, connectivity, drive support, expansion potential, management features, and overall fit for common buyers. The list includes full NAS systems from UGREEN and Synology as well as direct-attached storage and RAID enclosures from QNAP, WAVLINK, SABRENT, and CENMATE.
Because these products are not interchangeable, we considered both network capabilities and direct USB storage workflows. A NAS can serve files to multiple devices, run backup or media services, and support remote access. A DAS enclosure is generally simpler: it connects to one host computer and may be better for local capacity, removable storage, or a straightforward RAID setup.
Quick Comparison
| Best For | Look For | Product Types |
|---|---|---|
| Home backups and file sharing | Simple management, apps, and secure remote access | Entry-level NAS |
| Creative work and large media libraries | Faster networking, expansion, and strong hardware | Performance NAS or 10Gbps enclosure |
| Small offices and teams | User permissions, backup tools, and reliable administration | Business-oriented NAS |
| One-computer storage expansion | USB-C, RAID controls, cooling, and broad drive support | DAS or RAID enclosure |
Key Buying Factors for a Nas Enclosure with Four Bays
NAS or DAS?
Choose a NAS when several users or devices need access over a network, or when you want services such as automated backups, photo management, media streaming, and remote file access. Choose DAS when you mainly need fast local storage connected directly to a computer and prefer less software administration.
Drive Compatibility and Usable Capacity
Check whether the enclosure accepts 3.5-inch hard drives, 2.5-inch SSDs, or both. Advertised capacity is raw capacity before formatting and RAID overhead. Four drives can provide redundancy, but the usable space depends on the selected RAID level. Confirm supported drive sizes and any manufacturer compatibility guidance before buying.
RAID, Backups, and Data Protection
RAID can protect availability when a drive fails, but it is not a complete backup. Keep a second copy on another device or location, especially for irreplaceable photos, business files, and project data. Hardware RAID may be convenient for DAS use, while NAS systems often provide software-managed storage pools and backup tools.
Speed, Cooling, and Noise
USB 3.2 or 10Gbps connectivity can improve direct-attached transfers, but actual performance also depends on the drives, host port, cables, and workload. NAS speeds depend on the network connection and processor. Look for active cooling, temperature monitoring, and a noise level suitable for your workspace.
Who Should Buy Which Nas Enclosure with Four Bays?
Home users and beginners: Choose an easy-to-manage NAS if you want shared folders, automatic backups, or photo access across devices. A simpler DAS may be better if you only need extra capacity for one computer.
Creators and enthusiasts: Prioritize faster networking or 10Gbps direct connectivity, SSD support, cooling, and room for large media libraries. A higher-performance four-bay NAS is useful when multiple devices need access.
Small businesses and IT professionals: Look for account controls, dependable backup workflows, monitoring, remote administration, and vendor support. Capacity planning matters too: leave room for growth instead of filling every bay immediately.