10 Best NAS Enclosures With Four Bays in 2026 for Flexible Home and Business Storage

A four-bay storage system gives you room to combine multiple drives for larger capacity, redundancy, or both. The options in this roundup range from full network-attached storage appliances to simpler USB direct-attached enclosures.

Use the comparison and buying advice below to match the right interface, RAID features, drive support, and operating system experience to your workflow.

Best 10 Nas Enclosure with Four Bays Picks for 2026

Power-User Pick – UGREEN DXP4800 Pro

If you need a nas enclosure with four bays for demanding workloads, the UGREEN DXP4800 Pro is built for offices, developers, creators, and power users. Its Intel processor, expandable DDR5 memory, fast networking, virtualization support, and broad RAID options make it more capable than a basic file server.

Best For: Virtual machines, Docker containers, video projects, private cloud storage, and growing teams.

Pros:

• Intel Core i3-1315U, 8GB DDR5 RAM, and support for up to 96GB
• 10GbE plus 2.5GbE networking for fast transfers
• Supports four drive bays, two M.2 PCIe 4.0 SSDs, and up to 144TB
• Tool-free trays, RAID 0/1/5/10, and on-device photo AI

Cons:

• Drives are not included
• Its advanced features may be more than casual users need

The DXP4800 Pro is a strong choice when performance, expandability, and local data control matter more than keeping the setup minimal. Its aluminum chassis, multi-zone cooling, and two-year warranty also suit continuous operation.

Flexible DAS Pick – QNAP TR-004

The QNAP TR-004 is a four-bay storage enclosure for shoppers who want direct-attached capacity rather than a standalone NAS. It connects over USB Type-C to Windows, macOS, or Linux systems and can also expand compatible QNAP NAS storage.

Best For: External storage, NAS backup, and hardware-managed RAID for computers or compatible QNAP systems.

Pros:

• Four 3.5-inch SATA bays with hardware RAID 0, 1, 5, JBOD, and individual-disk modes
• USB Type-C connectivity with a Type-C to Type-A cable included
• Lockable drive bays and a metal enclosure
• Can serve as external storage or expand compatible QNAP NAS capacity

Cons:

• It is a DAS, not a network-enabled NAS
• NAS applications cannot be installed on the enclosure
• Compatibility and storage-pool limitations apply when connected to a QNAP NAS

Choose the TR-004 if your priority is simple, locally attached storage with hardware RAID. It is less suitable if you need independent network access, NAS apps, or a storage pool combined with the connected NAS.

Creator-Team Pick – UGREEN DXP4800 GT

For creators and office teams comparing a nas enclosure with four bays, the UGREEN DXP4800 GT combines high-speed networking with media-friendly expansion. Its Ryzen processor, dual 10GbE ports, SD card slot, HDMI output, and support for containers and virtual machines make it a versatile shared workspace.

Best For: Photo and video workflows, multi-user offices, local surveillance, media servers, and self-hosted applications.

Pros:

• AMD Ryzen Embedded processor with 8GB expandable DDR4 RAM
• Dual 10GbE ports with up to 20Gbps aggregate bandwidth using link aggregation
• Four bays, M.2 SSD support, and up to 144TB total capacity
• Built-in SD backup, USB 10Gbps ports, HDMI, and surveillance features

Cons:

• Drives are not included
• Surveillance support is limited to compatible ONVIF/RTSP cameras
• Some high-speed networking benefits require compatible network equipment

The DXP4800 GT stands out for users moving large media files or managing several workloads from one local system. Its UGOS Pro platform adds Docker, virtual machines, media apps, and local camera management without requiring separate hardware.

Simple DAS Pick – TerraMaster D4-320

The TerraMaster D4-320 is a straightforward alternative for shoppers searching for a nas enclosure with four bays but only needing direct-attached storage. This diskless USB 3.2 Gen 2 enclosure supports four individual drives on Windows, Mac, and Linux, with plug-and-play setup and hot swapping.

Best For: Simple multi-drive storage, media transfers, and users who do not need RAID or network access.

Pros:

• USB 3.2 Gen 2 Type-C connectivity with speeds up to 10Gbps
• Supports four SATA drives and up to 120TB total capacity
• Tool-free trays and hot-swappable drive replacement
• Temperature-controlled cooling and noise-reduction features

Cons:

• It is a DAS, not a NAS
• There is no RAID function
• Drives are not included

The D4-320 is best when you want plug-and-play access to several drives from one computer. Its lack of RAID and network services keeps the design simple, but users needing redundancy, remote access, or NAS applications should choose a true NAS instead.

Best Beginner NAS – UGREEN NAS DH4300 Plus

The UGREEN NAS DH4300 Plus is a practical nas enclosure with four bays for beginners, families, and remote workers who want private storage without relying entirely on cloud services. Its 8GB LPDDR4X RAM, 2.5GbE port, Docker support, and cross-platform apps make it suitable for backups, photo libraries, file sharing, and home media.

Best For: Families and first-time NAS buyers building a private photo, file, and media library.

Pros:

• AI-powered photo albums support recognition, semantic search, duplicate removal, and automatic mobile backups.
• Beginner-friendly setup works across Windows, macOS, Android, iOS, web browsers, and smart TVs.
• 8GB RAM, 2.5GbE networking, Docker support, and 4K HDMI output provide useful home-server flexibility.
• Local storage and automatic backups help keep data under the owner’s control without recurring cloud fees.

Cons:

• Storage drives are not included.
• It supports Docker but not virtual machines.
• Some advanced setup details should be reviewed before purchase.

The DH4300 Plus emphasizes approachable setup and family-focused photo management rather than advanced virtualization. It is a strong fit when simple private storage and automated organization matter most.

Best Direct-Attached Storage Expansion – WAVLINK 4-Bay Enclosure

The WAVLINK 4-Bay Hard Drive Enclosure is a nas enclosure with four bays designed primarily for direct-attached storage expansion rather than a standalone network server. It accepts 3.5-inch and 2.5-inch SATA drives, connects over USB-C at up to 10Gbps, and adds HDMI and peripheral connectivity for a flexible desktop setup.

Best For: Desktop users who need high-capacity, fast USB storage expansion with hot-swappable drive bays.

Pros:

• Four SATA 6Gbit/s bays support 3.5-inch and 2.5-inch HDDs or SSDs, with capacity up to 128TB.
• USB 3.2 Type-C supports data transfer speeds up to 10Gbps.
• Independent bay power switches enable convenient drive swapping.
• Aluminum construction and temperature-controlled dual fans help manage heat during demanding use.

Cons:

• It is a USB enclosure, not a standalone NAS with its own network operating system.
• 2.5-inch drives require separate mounting brackets, which are not included.
• HDMI video output requires a compatible host USB-C port and USB-C-to-C connection.

This WAVLINK model is best viewed as a versatile multi-drive desktop enclosure. Choose it for fast local expansion and display connectivity, but select a true NAS if you need built-in remote access or network-managed storage.

Best Performance NAS – Yxk Zero1 Pro 4-Bay NAS

The Yxk Zero1 Pro is a nas enclosure with four bays for users who want strong home-server performance and room to customize. Its Intel N100 processor, 8GB DDR4 RAM, dual 2.5GbE ports, RAID support, NVMe slots, and 4K HDMI output suit family backups, media serving, office files, and homelab projects.

Best For: Home users and enthusiasts who want expandable storage, faster networking, and Docker or third-party NAS OS flexibility.

Pros:

• Four SATA bays support up to 4 x 32TB drives with RAID 0, 1, or 5.
• Intel N100 and 8GB DDR4 RAM support everyday NAS tasks, Docker apps, and home-server projects.
• Dual 2.5GbE ports can support link aggregation with compatible network equipment.
• Two M.2 NVMe slots, 4K HDMI, and dual-fan cooling add expansion and media-server flexibility.

Cons:

• The unit is diskless, so HDDs or SSDs must be purchased separately.
• RAID, NVMe, and link aggregation benefits depend on compatible drives and network equipment.
• Third-party operating-system compatibility, features, and licenses can vary.

The Zero1 Pro offers more headroom than a basic family NAS, especially for Docker, media, and customized homelab use. Its hardware is appealing to enthusiasts, while the guided mobile setup keeps routine household storage approachable.

Best USB-C DAS – Sabrent 4-Bay USB-C Enclosure

For shoppers seeking a nas enclosure with four bays but needing direct-attached storage instead of network access, the SABRENT DS-SC4B is a capable desktop option. It holds up to four 2.5-inch or 3.5-inch SATA drives, connects over USB-C at up to 10Gbps, and mounts each drive independently rather than combining them in RAID.

Best For: Users who want fast, individually accessible drives, trayless hot-swapping, and a sturdy enclosure for Windows, macOS, or Linux.

Pros:

• USB 3.2 Gen 2 Type-C connection supports up to 10Gbps.
• Four independent drive connections help provide stable multi-drive access.
• Trayless hot-swap design includes per-bay power switches and activity LEDs.
• Aluminum-and-metal housing, 92mm fan, lock, and Kensington slot support desktop and 24/7 use.

Cons:

• It is DAS/JBOD, not a hardware RAID or network-attached NAS system.
• Drives are not included.
• The fastest connection requires USB-C to USB-C, and the unit uses an external power adapter.

The DS-SC4B is a strong fit when you want four-bay capacity and convenient drive-by-drive access without building a complete NAS. Its 10Gbps USB-C interface and active cooling make it the most performance-oriented option here, provided DAS functionality meets your needs.

Best DIY NAS Build – KCMconmey 4+1 Bay NAS Case

If you want a nas enclosure with four bays that can become a full network storage system, this KCMconmey chassis provides the foundation for a DIY build. It supports a Mini-ITX motherboard, a Flex or 1U power supply, and four 2.5-inch/3.5-inch drive trays plus one internal 2.5-inch bay.

Best For: DIY builders who want to choose their own motherboard, operating system, storage software, and optional single-slot full-height PCIe expansion card.

Pros:

• Supports four primary drive bays plus one internal 2.5-inch bay.
• Compatible with Mini-ITX motherboards and Flex or 1U power supplies.
• Includes a hot-swap backplane and two front USB 3.0 ports.
• Supports one single-slot full-height PCIe expansion card for added functionality.

Cons:

• It is an enclosure chassis, so the motherboard, power supply, and storage drives must be supplied separately.
• Mini-ITX motherboard compatibility limits component selection.
• The supplied information does not specify a network controller or preinstalled NAS software.

This case offers the most flexibility for a custom NAS or private-cloud project, but it requires more planning and assembly than a ready-to-use external enclosure. Confirm motherboard, power-supply, and expansion-card clearances before buying.

Best Budget 4-Bay Enclosure – CENMATE Aluminum Drive Enclosure

The CENMATE is a straightforward nas enclosure with four bays for shoppers who need extra desktop storage without building a network server. It accepts 2.5-inch and 3.5-inch SATA HDDs or SSDs, connects through USB-A or USB-C at up to 5Gbps, and operates as direct-attached storage rather than a RAID or NAS device.

Best For: Home and small-business users who want a simple four-drive USB enclosure with broad Windows, Mac, and Linux compatibility.

Pros:

• Supports four 2.5-inch or 3.5-inch SATA drives with up to 80TB stated capacity.
• Includes USB-A and USB-C 3.0 connectivity for flexible computer compatibility.
• Tool-free, hot-swappable design supports convenient drive changes.
• Aluminum construction and an integrated fan help with cooling.

Cons:

• USB 3.0 performance is rated up to 5Gbps, below the SABRENT’s 10Gbps interface.
• It does not provide RAID or NAS functionality.
• The fan may produce approximately 40–50 dB of noise, which could bother noise-sensitive users.

CENMATE keeps the four-bay setup uncomplicated and offers useful cable flexibility at a lower-speed USB interface. It is a practical choice for expanding local storage, as long as you do not need remote network access or hardware RAID.

How We Picked the Best Nas Enclosure with Four Bays

We selected these products to cover the main ways shoppers use a four-drive enclosure: network storage, desktop expansion, media libraries, backups, and DIY builds. We considered drive compatibility, connection speed, RAID support, cooling, installation requirements, software features, and the level of technical knowledge each design demands.

The list includes complete NAS appliances with processors and networking, as well as diskless DAS products that connect directly to a computer. That distinction matters: a DAS enclosure can be simpler and less expensive, while a true NAS can serve files and applications across your network without keeping a host computer turned on.

Quick Comparison

Type	Best for	What to check
Full NAS	Shared storage, remote access, media servers	CPU, RAM, network ports, operating system
USB DAS	Backups and extra local capacity	USB speed, RAID modes, host compatibility
DIY NAS case	Custom hardware and software builds	Motherboard, PSU, cooling, backplane support

Key Buying Factors for a Nas Enclosure with Four Bays

NAS or DAS?

A NAS connects to your router or switch and supports multiple clients, user accounts, permissions, and often remote access. A DAS connects to one host over USB or another direct interface. Choose DAS for straightforward local storage; choose NAS when several devices need access.

Drive Compatibility and RAID

Confirm whether the enclosure accepts 3.5-inch hard drives, 2.5-inch SSDs, or both. Check supported drive capacities and whether disks are hot-swappable. RAID 0 improves capacity and speed but offers no protection, while RAID 1 and RAID 5 provide varying levels of redundancy at the cost of usable capacity. RAID is not a substitute for a separate backup.

Performance and Connectivity

USB 3.2, 2.5GbE, and faster networking can reduce transfer times, but actual performance also depends on the drives, cables, network equipment, and computer. For large media files, creator workflows, or multiple users, prioritize faster networking and adequate system memory.

Cooling, Noise, and Expansion

Four mechanical drives produce heat and vibration. Look for active cooling, temperature control, accessible filters, and a chassis designed for airflow. Also consider drive trays, tool-free installation, included power supplies, backup software, and warranty coverage.

Who Should Buy Which Nas Enclosure with Four Bays?

Home users and beginners: Choose a ready-made NAS with an approachable operating system, automated backups, and straightforward drive installation.

Creators and office teams: Favor faster networking, strong file-sharing features, and sufficient memory for simultaneous users, large projects, and media services.

IT professionals and power users: Look for stronger processors, virtualization or container support, multiple network interfaces, and flexible storage management.

Local backup shoppers: A USB DAS can be the better value when you only need attached storage for one computer and do not require network services.

DIY builders: Select a case only after confirming motherboard dimensions, power-supply format, drive trays, cooling clearance, and backplane connectivity.