Looking for a reliable 4-bay NAS enclosure or DAS enclosure to expand storage, back up data, or support media streaming? This guide highlights five strong options, clarifying who each is best for and what makes them stand out. Each product is evaluated for performance, expandability, and easy setup, with practical cautions where appropriate. Ideal buyers include home enthusiasts, small teams, content creators, and small offices needing solid 4-bay capacity with robust connectivity.
Summary of selected products:
| Product | ||
|---|---|---|
| TERRAMASTER D4-320 External 4-Bay (Diskless) | DAS Enclosure | USB 3.2 Gen2, up to 10Gbps; hot-swappable; supports 4 disks; best for fast direct USB storage |
| CENMATE Aluminum 4 Bay Enclosure | DAS Enclosure | Aluminum cooling, up to 80TB; hot-swappable; USB 3.0; quiet-optional |
| UGREEN DXP4800 GT 4-Bay NAS | NAS System | Ryzen CPU, 8GB RAM, dual 10GbE, M.2 NVMe slots; app ecosystem; built-in surveillance |
| TERRAMASTER F4 SSD NAS 4-Bay | NAS Server | 4x M.2 NVMe slots; 5GbE; compact form; SSD-only performance |
| UGREEN DXP4800 Plus 4-Bay NAS | NAS | 10GbE, 2.5GbE, 128GB SSD onboard, up to 144TB capacity; rich networking and expandability |
TERRAMASTER D4-320 External 4-Bay (Diskless)
The D4-320 is a DAS enclosure rather than a NAS, designed for high-speed direct USB connections. It uses USB 3.2 Gen2 to reach up to 10Gbps. With four disks installed, read/write speeds can approach 1,016 MB/s; with a single SSD, speeds around 510 MB/s are achievable. It supports up to 30TB per drive (total 120TB) and works with 3.5″ HDDs, 2.5″ HDDs, and 2.5″ SSDs. Best for users who need raw USB storage speed and simple plug-and-play use without RAID.
Who it’s best for: creators or power users needing fast, direct-attached storage for editing, backups, or media libraries. Not ideal for networked sharing or RAID setups. Caution: no RAID, so data protection relies on backups elsewhere.
CENMATE Aluminum 4 Bay Enclosure
The CENMATE 4-bay enclosure uses aluminum alloy construction with a built-in 2-inch fan to help cool drives. It accepts 2.5″ and 3.5″ SATA HDDs/SSDs and supports hot-swapping. USB 3.0 provides data transfer up to about 5Gbps under UASP. It is a DAS device with no RAID and up to 80TB total capacity. Best for users who want a compact, cool-running external enclosure with straightforward drag-and-drop storage. Caution: fan noise is around 40-50 dB, which may be noticeable in quiet environments.
Who it’s best for: individuals or small offices needing simple, expandable external storage with robust cooling. Choose this if you want quiet, reliable operation and easy drive swapping. Avoid if you require RAID or NAS-style network sharing.
UGREEN DXP4800 GT 4-Bay NAS
This NAS enclosure centers on high performance, driven by AMD Ryzen Embedded R2514 with 8GB DDR4 RAM, expandable to 64GB. It features dual 10GbE networking and fast SSD expansion, enabling rapid transfers and smooth multi-user operation. UGOS Pro provides easy NAS management, apps, Docker, and virtual machines, extending into media servers, web hosting, and other self-hosted workflows. Best for teams needing robust multitasking, virtualization, and strong network performance. Caution: system complexity may require more setup time for non-technical users.
TERRAMASTER F4 SSD NAS 4-Bay
The F4 SSD NAS is a compact, SSD-only 4-bay NAS powered by an Intel N95 4-core processor with 8GB DDR5 memory and a 5GbE Ethernet port. It is designed for high-speed local storage with four M.2 2280 NVMe slots supporting drives up to 8TB each (total 32TB). The tool-free design speeds up SSD installation. Best for users who need quiet, high-performance, all-SSD storage in a small footprint. Limitation: requires M.2 NVMe drives to fill the slots; traditional 3.5″ HDDs are not supported for this model.
UGREEN DXP4800 Plus 4-Bay NAS
The DXP4800 Plus combines high-capacity NAS with multiple network interfaces. It includes built-in 128GB SSD, two M.2 NVMe slots, and dual 10GbE plus 2.5GbE ports, enabling fast local backups and remote access. It is designed for families, creators, and small teams who need flexible media workflows, Docker apps, and enhanced sharing. Best for depending on fast network transfers and a ready-made app ecosystem. Caution: data protection should rely on backup strategies beyond the built-in SSD.
Buying Guide
What should you consider when choosing a 4-bay NAS enclosure or DAS enclosure?
- Intended use: Do you want direct-attached storage (DAS) or a network-attached storage (NAS) device? DAS is simple and fast for local use; NAS offers centralized sharing and remote access.
- Drive compatibility and size: Check support for 2.5″ and 3.5″ drives and total capacity. Consider whether you will use HDDs, SSDs, or a mix.
- Connectivity: USB 3.2 Gen2 provides high-speed local transfers for DAS. NAS options with dual 10GbE or 5GbE ports enable fast network transfers and scalable sharing.
- RAID and data protection: Some units offer no RAID (which means you need separate backups). Others provide RAID options, which impact data redundancy and capacity.
- Cooling and noise: Aluminum enclosures with built-in fans help maintain drive health; consider noise if the setup sits in a quiet room.
- Management features: NAS devices with app ecosystems, Docker support, and media servers can simplify workflows. Assess whether you need surveillance, virtualization, or media transcoding capabilities.
- Future expandability: Look for devices supporting more RAM, additional drives, or PCIe/NVMe expansion to future-proof your setup.
FAQ
- What is the difference between a NAS and a DAS enclosure?
NAS connects over a network for multi-user access; DAS connects directly via USB or Thunderbolt for fast local transfers. - Do 4-bay enclosures support RAID?
Some models offer RAID configurations; others are drive-by-drive (no RAID). Verify each model’s RAID capabilities before buying if data redundancy matters. - Can these enclosures work with both HDDs and SSDs?
Many support both, but check each model’s drive compatibility (2.5″ vs 3.5″ and NVMe support in SSD-only options). - Is dual 10GbE networking necessary for a home setup?
Not strictly necessary for all users, but it improves transfer speeds and supports simultaneous tasks for small teams. - Do these devices require drivers for macOS or Windows?
Most modern units are plug-and-play with broad OS compatibility, though some advanced features may require software. - What is hot-swapping?
Hot-swapping allows you to swap drives without powering down the enclosure, improving maintenance efficiency.