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

A four-bay storage system gives you room to combine multiple hard drives or SSDs for backups, media libraries, file sharing, and expandable local storage. The best choice depends on whether you need a true network-attached server, a simple USB enclosure, or a faster platform for demanding workloads.

We selected 10 four-bay options spanning beginner-friendly NAS devices, professional systems, direct-attached storage, and high-speed USB-C enclosures. Use the guide below to compare connectivity, RAID support, performance, software, and the features that matter most before buying.

Best 10 Nas Enclosure with Four Bays Picks for 2026

Performance Pick – UGREEN DXP4800 Pro

If you need a nas enclosure with four bays for demanding work, the UGREEN NAS DXP4800 Pro is built around performance rather than basic file storage. Its Intel Core i3 processor, 8GB of expandable DDR5 memory, dual high-speed networking, Docker and virtual-machine support make it a strong fit for advanced home labs, creative workflows, and small teams.

Best For: Developers, video editors, IT professionals, and power users who need virtualization, containers, fast transfers, and expandable storage.

Pros:

• Intel Core i3-1315U processor with 8GB DDR5 RAM, expandable to 96GB.
• Dual 10GbE and 2.5GbE ports support fast network transfers.
• Supports RAID 0, 1, 5, and 10, plus two PCIe 4.0 M.2 SSD slots.
• Tool-free slide-out trays and multi-zone cooling suit frequent or continuous use.

Cons:

• Its advanced hardware and features may be more than casual file-sharing users need.
• Storage drives are required separately.

The DXP4800 Pro stands out when a four-bay enclosure must also serve as a private workstation, virtualization host, or high-speed media hub. It offers substantial expansion and security features, though its value is highest for users prepared to take advantage of its pro-level capabilities.

Simple DAS Upgrade – QNAP TR-004

The QNAP TR-004 is a straightforward nas enclosure with four bays for adding external capacity over USB-C. Unlike a full network-attached server, it is direct-attached storage for Windows, macOS, and Linux, with hardware RAID modes that can also help expand or back up a compatible QNAP NAS.

Best For: Users who want a compact four-drive USB storage enclosure, hardware RAID, or additional capacity for a compatible QNAP NAS.

Pros:

• Supports four 3.5-inch SATA drives in RAID 0, 1, 5, JBOD, or individual-disk configurations.
• USB Type-C connectivity works with Windows, macOS, and Linux systems.
• Lockable drive bays and a metal enclosure add practical durability and security.
• Can serve as external storage or a backup and capacity-expansion device for supported QNAP NAS models.

Cons:

• It is a DAS rather than a standalone network NAS, so NAS applications cannot run on it.
• Compatibility is limited with certain older QNAP NAS models.
• Drives are not included.

The TR-004 makes sense when you want simple USB-connected storage with hardware RAID instead of a full NAS operating system. Check QNAP compatibility carefully before buying, especially if you plan to connect it to an existing NAS.

Creator-Friendly Choice – UGREEN DXP4800 GT

For creators comparing a nas enclosure with four bays, the UGREEN DXP4800 GT combines fast networking with convenient media-import features. Its AMD Ryzen Embedded processor, dual 10GbE ports, SD card slot, HDMI output, and support for Docker and virtual machines make it suited to content-heavy home and office setups.

Best For: Creators, small office teams, media libraries, surveillance storage, and users who want fast local access to camera and video files.

Pros:

• AMD Ryzen Embedded R2514 with 8GB expandable DDR4 memory handles multitasking.
• Dual 10GbE ports can provide high transfer speeds and aggregate bandwidth with compatible equipment.
• Built-in SD card slot and 10Gbps USB ports simplify media and surveillance-file imports.
• Supports Docker, virtual machines, RAID, M.2 SSDs, and compatible U.2 NVMe SSDs.

Cons:

• Drives are not included.
• Maximum network performance depends on compatible networking hardware.
• Surveillance support is limited to compatible ONVIF/RTSP cameras.

The DXP4800 GT is a versatile choice for users who want more than file storage, particularly if SD-card workflows, local media management, or camera recording are important. Its feature set is broad, but realizing its speed potential requires suitable drives and network equipment.

Flexible JBOD Enclosure – SABRENT DS-SC4B

The SABRENT DS-SC4B is a practical nas enclosure with four bays for direct-attached, independent drive access. It connects through USB-C at up to 10Gbps and supports four 3.5-inch SATA HDDs or SSDs, but it uses a JBOD-style design rather than hardware RAID.

Best For: Users who want flexible external access to up to four individual SATA drives on Windows, macOS, or Linux.

Pros:

• Four independent drive connections provide stable per-bay access.
• 10Gbps USB-C connectivity works with 3.5-inch SATA HDDs and SSDs.
• Trayless hot-swap design, individual bay switches, activity LEDs, and a locking key improve convenience.
• Aluminum-and-metal housing with a 92mm fan supports continuous operation.

Cons:

• It is JBOD and does not provide hardware RAID.
• Drives are not included.
• Its 1-year warranty is shorter than some competing enclosures.

The DS-SC4B is a good fit when independent drive control matters more than RAID protection. It is especially useful for moving between multiple disks or building a flexible external storage setup, but users seeking redundancy should add RAID through their operating system or another compatible solution.

Best High-Performance NAS – TERRAMASTER F4-424 Pro

If you need a nas enclosure with four bays for demanding home or small-business workloads, the TERRAMASTER F4-424 Pro stands out with an 8-core Intel Core i3-N305 processor, 32GB of DDR5 memory, and dual 2.5GbE networking. It is a diskless enclosure, so you can choose and install your own drives.

Best For: Small and medium-sized businesses, high-load applications, multi-user file access, and users who want fast networking and NVMe caching.

Pros:

• Powerful 8-core CPU and 32GB DDR5 memory for demanding workloads.
• Dual 2.5GbE ports support link aggregation and high-concurrency access.
• Two M.2 NVMe slots enable SSD caching.
• Supports RAID 0/1/5/6/10, JBOD, Single, and TRAID configurations.

Cons:

• Memory is non-ECC and non-upgradable.
• Drives are not included.
• Its higher-end hardware may be more than casual users need.

The F4-424 Pro is a strong choice when application responsiveness, fast file transfers, and expansion flexibility matter more than entry-level pricing. Tool-free drive trays, simplified M.2 installation, backup software, and noise-reduction measures add practical convenience.

Best DAS-Style Storage Expansion – WAVLINK 4-Bay Enclosure

For shoppers seeking a nas enclosure with four bays primarily for direct-attached storage, the WAVLINK 4-Bay enclosure supports four SATA drives through USB-C. It accepts 3.5-inch and 2.5-inch HDDs or SSDs and adds HDMI connectivity, making it useful as a flexible desktop storage hub rather than a traditional network NAS.

Best For: Desktop users who want large direct-attached storage, fast USB-C transfers, hot-swappable bays, and an integrated display output.

Pros:

• Four SATA 6Gbps bays support up to 128TB with compatible drives.
• USB 3.2 Type-C delivers data transfer speeds up to 10Gbps.
• Independent bay power switches support convenient drive swapping.
• Aluminum construction and temperature-controlled fans help with cooling.

Cons:

• It connects directly by USB rather than functioning as a standalone network NAS.
• 2.5-inch drives require separate 2.5-to-3.5-inch mounting brackets.
• HDMI video output requires a compatible host USB-C port and USB-C-to-C cable.

The WAVLINK is best viewed as a four-drive USB storage enclosure with useful docking features. Its high-capacity support, 10Gbps connection, cooling fans, and HDMI output make it a practical option for local storage expansion, but it does not offer the remote-access and NAS software features of a networked NAS.

Best Beginner-Friendly NAS – UGREEN NAS DH4300 Plus

The UGREEN NAS DH4300 Plus is a practical nas enclosure with four bays for families, home users, and remote workers building a private cloud. Its beginner-focused setup, mobile photo backup, cross-platform access, and 2.5GbE networking make it approachable for moving away from external drives or recurring cloud storage.

Best For: Home media libraries, family photo backups, remote workers, and first-time NAS owners who want private multi-device storage.

Pros:

• Automatic phone photo and video backup with AI-powered album organization.
• Beginner-friendly setup with access across Windows, macOS, Android, iOS, browsers, and smart TVs.
• 2.5GbE networking, 8GB LPDDR4X RAM, and 4K HDMI output.
• Supports Docker and provides local storage with automatic backups.

Cons:

• Storage disks are not included.
• It supports Docker but not virtual machines.
• Some advanced features may be unnecessary for users seeking only basic file storage.

The DH4300 Plus emphasizes ease of use and private, centralized storage over advanced virtualization. Its photo tools, broad device compatibility, remote access, and large four-bay capacity make it a compelling starting point for households and home offices.

Best DAS Alternative – TerraMaster D4-320

The TerraMaster D4-320 is a fast four-bay storage enclosure for shoppers who need direct-attached storage rather than a true NAS. Its USB 3.2 Gen 2 connection, tool-free trays, and support for four separate SATA drives make it a practical option for expanding a Mac, Windows, or Linux computer.

Best For: Users seeking a quiet, plug-and-play four-bay DAS for desktop storage, backups, or large file transfers.

Pros:

• USB 3.2 Gen 2 supports data transfer rates up to 10Gbps.
• Supports four individual SATA drives, with up to 120TB total capacity based on supported drive limits.
• Tool-free trays, hot swapping, and push-lock drive retention simplify drive management.
• Temperature-controlled cooling and vibration-damping features help reduce operating noise.

Cons:

• This is a DAS, not a network-attached storage system.
• It has no RAID function and does not combine the four drives into a protected array.

The D4-320 stands out when speed and simple computer-connected storage matter more than network access or RAID. Choose it only if direct USB storage fits your setup.

Best Full-Featured NAS – Yxk Zero1 Pro 4-Bay NAS

The Yxk Zero1 Pro is the strongest match for shoppers specifically seeking a nas enclosure with four bays and network features. With an Intel N100 processor, 8GB of RAM, RAID support, dual 2.5GbE ports, and 4K HDMI, it is designed for home clouds, backups, media libraries, and small-office file sharing.

Best For: Families, home-office users, and homelab builders who want a four-bay NAS with RAID, remote access, and application flexibility.

Pros:

• Four SATA bays support RAID 0, 1, or 5 and up to 144TB of combined raw capacity with supported drives.
• Intel N100 and 8GB DDR4 RAM support everyday NAS, backup, and home-server tasks.
• Dual 2.5GbE ports and 4K HDMI suit fast file sharing and compatible home-media setups.
• Supports compatible Docker applications and manual installation of operating systems such as TrueNAS, Unraid, or OMV.

Cons:

• Drives are not included, so the total setup cost is higher than the enclosure price.
• Software, media playback, Docker, and third-party operating-system compatibility can vary.

For buyers who need genuine network storage rather than a USB enclosure, the Zero1 Pro offers a capable foundation with room for RAID, SSD expansion, media use, and customization. Its feature set is more than necessary for simple local storage, but valuable for a connected home server.

Best RAID-Focused DAS – Cenmate 4-Bay RAID Enclosure

The Cenmate 4-Bay RAID Enclosure is a direct-attached alternative for buyers comparing a nas enclosure with four bays but who primarily need local RAID storage. It accepts 2.5-inch and 3.5-inch SATA drives, offers eight operating modes, and connects through USB 3.0 or eSATA.

Best For: Users who want configurable local RAID storage for a computer and can work within its manual setup and noise limitations.

Pros:

• Supports four 2.5-inch or 3.5-inch SATA HDDs or SSDs, with up to 80TB stated capacity.
• Offers RAID 0, 1, 3, 5, and 10, plus CLONE, LARGE, and NORMAL modes.
• Includes USB-A/C 3.0 and eSATA connectivity for broad computer compatibility.
• Aluminum construction and dual fans help with heat management.

Cons:

• This is a DAS, not a NAS, so it does not provide network storage by itself.
• Hot swapping is not supported.
• Fan noise is rated around 40–50 dB, and RAID switching requires a manual procedure that may cause data loss.

The Cenmate is appealing if flexible RAID modes matter more than quiet operation or network access. Before buying, verify that your computer and eSATA setup support the desired multi-drive configuration.

How We Picked the Best Nas Enclosure with Four Bays

We focused on systems that provide four drive bays for 3.5-inch hard drives, 2.5-inch SATA SSDs, or both, depending on the model. The roundup includes full NAS appliances with network services as well as direct-attached storage (DAS) enclosures designed to connect directly to a computer. We compared hardware capability, drive compatibility, RAID options, connection speeds, cooling, expansion potential, ease of setup, and the intended user profile.

Because a Nas Enclosure with Four Bays can serve very different roles, we did not treat the fastest processor or highest port speed as universally best. A home backup system has different priorities from a video-editing enclosure or a multi-user office server.

Quick Comparison

• Best for advanced NAS workloads: Look for a capable processor, ample memory, multiple network ports, virtualization or container support, and a mature operating system.
• Best for creators: Prioritize 2.5GbE or faster networking, USB-C connectivity, SSD support, and reliable cooling for large media transfers.
• Best for simple desktop storage: A DAS enclosure with hardware RAID and USB-C can provide straightforward capacity without NAS administration.
• Best for beginners: Choose an appliance with guided setup, accessible drive bays, automatic updates, and clear backup tools.

Key Buying Factors for a Nas Enclosure with Four Bays

NAS or DAS?

A true NAS connects to your network and can provide shared folders, remote access, automated backups, media streaming, surveillance, and application support. A DAS connects directly to one computer and is usually simpler, but it cannot independently serve multiple users over a network. Confirm which type you need before comparing specifications.

RAID and Data Protection

Four bays support flexible arrangements such as RAID 0, RAID 1, RAID 5, RAID 6, or RAID 10, depending on the device. RAID can improve availability or performance, but it is not a substitute for an external backup. Check whether RAID is managed by hardware, the operating system, or the host computer, and verify which drive sizes are supported.

Connectivity and Performance

USB 3.2 Gen 2, 10Gbps USB-C, 2.5GbE, and faster networking can reduce transfer times, but real-world speed also depends on the drives, cables, network switches, and computer ports. For NAS use, multiple network ports may enable link aggregation or separate traffic, while direct-attached users should prioritize the fastest compatible host connection.

Cooling, Noise, and Expandability

Four mechanical drives generate heat and vibration. Look for a temperature-controlled fan, unobstructed ventilation, tool-free trays, and accessible dust management. Also check memory expandability, supported applications, drive migration options, and whether the enclosure can be expanded later.

Who Should Buy Which Nas Enclosure with Four Bays?

Home users and remote workers should favor simple setup, dependable backup software, quiet operation, and enough capacity for documents and photos. Creators and tech enthusiasts benefit from faster networking, SSD compatibility, strong cooling, and responsive processors for media libraries and collaborative projects. IT professionals and developers should prioritize memory, application support, virtualization or container capabilities, multiple network interfaces, and long-term software support. Users who only need extra local storage may be better served by a DAS enclosure with hardware RAID, especially if they do not need network sharing or always-on services.