Best Test 4 Bay Nas 2026

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Last Updated - 22.07.2026

Best Choice

01

UGREEN

UGREEN NASync DXP4800 Pro, 4-Bay Desktop NAS, Intel i3-1315U 6-Core Processor, 8GB DDR5 (up to 96GB), Built-in 128GB SSD, 10GbE & 2.5GbE LAN, 2 × M.2 NVMe Slots, HDMI 4K (No Hard Drives)

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Your hardware, your choice: Expand your storage without restrictions. With wide support for NAS hard drives from different manufacturers, you can scale capacity and performance individually.
Wide Compatibility UGREEN NASync is compatible with Western Digital, Seagate, Toshiba and other third party hard drives. Note: Hard drives are not included and must be purchased separately.
Ultra-fast 10GbE and 2.5GbE network ports: The NASync DXP4800 Pro delivers transfer speeds of up to 1250 MB/s over two dedicated ports. Ideal for transferring 4K videos and large files quickly and smoothly.
Two M.2 NVMe SSD slots: Support SSD caching to significantly speed up everyday tasks such as photo previews, app launch times and overall system performance.
Professional data security: User accounts and data are fully protected by secure encryption.
Note: 1. NAS hard drives and NAS HDD are not included and must be purchased separately. 2. Do not modify or reinstall the operating system yourself, do not turn off the device improperly and do not let it become powerless during the system update. Otherwise, this may result in the loss of drivers (e.g. for the network card) and network interference. 3. Actual network transfer speed is limited by factors such as home router, CPU, hard drive and file size; transfer speed may decrease.
Intuitive and easy-to-use app: Manage your storage and access your files from all your devices with our specially designed software, without multiple tools or complicated third-party programs. Available for Android, iOS, Windows, macOS, web browser and smart TVs.
Intel Core i3-1315U processor: Tackles demanding tasks effortlessly in parallel – from docker containers and virtual machines to file synchronization and media transcoding.
High expandability: The standard 8GB DDR5 memory ensures smooth multitasking, video editing and demanding applications. The memory can be expanded up to 96GB to support maximum performance and future needs.

799,99 €
02

Synology

SYNOLOGY NAS DS925+ 4 Bay Expandable Capacity (No Hard Drive)

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile network storage: Leverage integrated file and photo management, data protection, virtualization, and surveillance solutions
Reliable performance: up to 522/565 MB/s sequential read/write throughput for stable data transfers
Hard Drives Only support Synology HDD and SSD hard drives to give you exceptional reliability.
Fast and flexible network: Dual 2.5GbE ports provide fast network transfer speeds and increased redundancy
Expandable product support – guaranteed by Synology's 3-year limited hardware warranty, expandable to 5 years.
Capacity expansion: add 5 additional drive bays for up to 180TB of 4 storage with a DX525 expansion unit

769,00 €
Value for Money

03

UGREEN

UGREEN NASync DXP4800 Plus, 4-Bay Desktop NAS, Intel Pentium Gold 8505 Processor with 5 Cores, 8GB DDR5 RAM, Built-in 128GB SSD, 10GbE & 2.5GbE LAN, 2 × M.2 NVMe Slots, HDMI 4K (without Hard Drives)

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Your hardware, your choice: Expand your storage without restrictions. With wide support for NAS hard drives from different manufacturers, you can scale capacity and performance individually.
WIDELY USED COMPATIBILITY UGREEN NASync is compatible with Western Digital, Seagate, Toshiba and other third party hard drives. Please check our compatibility list for full details.
User-friendly app: Manage your storage and access your files from all your devices easily with our customized software – all without multiple tools or complicated third-party software. Available for Android, iOS, Windows, Mac, web browser and smart TVs.
Professional data security: With secure encryption, user accounts and data are fully protected.
Note: 1. NAS hard drives and NAS HDD are not included and must be purchased separately. 2. Do not modify or reinstall the operating system yourself, do not turn off the device improperly and do not let it become powerless during the system update. Otherwise, this may result in the loss of drivers (e.g. for the network card) and network interference. 3. Actual network transfer speed is limited by factors such as home router, CPU, hard drive and file size; transfer speed may decrease.
Lightning-fast 10GbE and 2.5GbE network ports: The NASync DXP4800 Plus delivers data rates of up to an impressive 1250 MB/s via two separate ports. Ideal for anyone who needs fast and smooth transmission of 4K videos and large files.
4 Bays and maximum 144TB: The four SATA bay supports up to 32TB each. In addition, two compact M.2 NVMe SSDs with up to 8TB each can be installed (for SSD caching or additional fast storage). With full utilization of all slots, the maximum capacity is an impressive 144TB.
12. Gen 5-core Intel processor: This powerful Intel CPU delivers an exceptionally smooth experience and delivers significant performance gains over previous generations.

579,99 €
04

ACEMAGIC

ACEMAGIC N3A NAS, AMD R2544 8GB DDR4 128GB SSD

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

ACEMAGIC N3A NAS, AMD R2544 8GB DDR4 128GB SSD

599,99 €
05

UGREEN

UGREEN NASync DXP4800 GT 4-Bay Desktop NAS, AMD Ryzen R2514, Dual 10GbE, 8GB DDR4 RAM (up to 64GB), ECC Support, U.2 & M.2 Slots, for Creator, Teams & Home (Diskless)

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

U.2 and M.2 SSD Expansion: U.2 SSD support in bay 1 and 2 enables enterprise NVMe storage for active project files, VM volumes and fast workflows. Two M.2 NVMe slots are suitable for SSD cache or high-speed storage, while SATA bays flexibly centralize large data libraries.
Stable 24/7 NAS performance: The AMD Ryzen Embedded R2514 with 4-core, 8 threads, energy-saving embedded architecture and versatile I/O is designed for stable 24/7 NAS operation. The DXP4800 GT reliably handles demanding tasks such as dockers, virtual machines, media indexing, and simultaneous access for multiple users.
Secure protection for your private cloud: Protect business and creative data with RAID, snapshots, version recovery, remote backup, rights management, and two-factor authentication. TUV and TRUSTe-certified privacy keeps your system private, so even UGREEN cannot access your data. Compatible ECC memory upgrades help detect and correct memory errors.
Intelligent AI Photo and Media Hub UGOS Pro organizes photos, videos and documents with AI search, face recognition, duplicate recognition, and smart media management. Create a private entertainment center for 4K playback, poster walls and your own video counters. With UGREENlink, you can access photos and media in the NAS on the go without complicated network settings.
Important Notes Before Purchasing: For ECC error correction, the factory installed non-ECC memory must be replaced with compatible ECC memory. HDDs and storage SSDs are not included. Plex can run via Docker but must be set up manually.
Dual 10GbE for more efficient teamwork: Two 10GbE ports enable up to 20Gbps bundled bandwidth in compatible link aggregation setups. In SMB or iSCSI workflows, teams transfer large files faster, edit 4K projects, run backups, and access shared project folders more quickly.
Centralize office collaboration: Centralize office files, project materials and backups in a private workspace. UGOS Pro supports shared folders, user rights, remote access, multi-device sync and file sharing for multiple people, so small teams use less scattered drives and collaborate more efficiently.

659,99 €
06

Synology

Synology DiskStation DS423 NAS

17% Off

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile Surveillance - Protect your home or business with intuitive monitoring, archiving, and analysis tools for up to 30 IP cameras
SECURE SHARE AND SYNC - Secure access to files and media from anywhere and keep friends, partners or colleagues on the same page
Easy data protection - Secure your media and documents in multiple locations and take snapshots to protect against malware
Centralized Data Storage - Consolidate up to 72TB of data and enjoy 100% data ownership and multi-platform access from anywhere

374,33 € 449,99 €(17% Off off)
07

TERRAMASTER

TERRAMASTER D4-320 External Hard Drive Enclosure - 4x USB 3.2 Gen2 10Gbps Type-C USB Memory Hot Swappable Plug and Play (Diskless)

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Tool-free hard drive management: The D4-320 external hard drive enclosure is equipped with a tool-free hard drive tray that allows easy installation and removal of hard drives without additional tools. In addition, the D4-320 features TerraMaster's unique push-lock design that automatically secures the HDD tray when inserted, preventing the hard drive from falling out or loosening.
PLUG AND PLAY COMPATIBILITY The D4-320 USB storage supports 4 single hard drives (NO RAID function) and is plug and play capable, so no drivers are required. It is highly compatible with MAC, Windows and Linux operating systems. The USB Type-C interface supports various computer interfaces, including USB 3.0, USB 3.1, USB 3.2, Thunderbolt 3 and Thunderbolt 4.
Hot Swappable Convenience The D4-320 hard drive enclosure supports hot swapping, allowing users to swap hard drives without having to turn off the device. This feature increases the convenience and efficiency of data transfer processes.
High Speed Data Transfer The D4-320 hard drive enclosure uses the USB 3.2 Gen2 protocol and achieves high-speed data transfer of up to 10Gbps. When equipped with four hard drives, the actual read/write speed can reach up to 1016MB/s (combined read/write speed with four SATA III HDDs of 8TB each). With just one SSD installed, the read speed effortlessly reaches 510 MB/s (SATA III 1TB SSD). The D4-320 supports a single hard drive with up to 22TB and a total capacity of 88TB.
Efficient heat dissipation and quieter operation: The D4-320 Direct Attached Storage features an intelligent, temperature-controlled fan for optimal heat dissipation. In standby mode, the noise level drops to below 21 dB(A), creating a remarkably quiet user environment.

209,99 €
08

AOOSTAR

AOOSTAR Ryzen 7 5825U 4 Bay NAS Mini PC, No RAM, No SSD NAS Desktop Computer, 2 x M.2 NVMe Slots, 2.5 Inches/3.5 Inch SATA x4 Storage (up to 4 x 22TB) No Hard Drive, Only 4 Hard Drive Frames No OS

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You can install OPNsense, OpenWrt, Unbutun, Windows 10 or 11 and other popular open source software solutions on this firewall router. You can use it as a soft routing, NAS, ESXI and PVE virtualization platform (supports VT-X, VT-D). Runs around the clock. Suitable for Internet access in small offices, home offices (SOHO), home laboratories, virtual offices, SMB, branch offices, remote employee locations, etc.
Tool-free installation - The drive bays are made of flexible and durable materials (drive bays with non-slip mat, you don't have to worry about vibration caused by a running device). No screws and tools are needed to install the hard drives easily.
The WTR PRO NAS Mini Desktop PC can be replaced with up to 64GB DDR4 3200MHz RAM (32GB*2). Upgrade to up to 2 x 2 TB (PCIE 3.0 M.2 2280) NVME SSD, up to 88 TB (4 x 22 TB) 3.5 inch hard drive. *Barebone system does not contain memory, hard drive and OS*
Connect the way you like - The NAS mini computer is equipped with 1 x HDMI, 1 x DP, 1 x fully functional Type-C (supports 100 W charging, transfer speed 10 GB/S), 2 x 2.5 G RJ45 Ethernet, 2 x USB 3.0, 2 x USB 2.0, 1 x 2-in-1 audio microphone socket, 1 x TF card slot, 1 x x DC. HDMI + DP + Type C supports perfect images with 4K at 60Hz and connecting up to 3 screens. The full features can be displayed simultaneously and asynchronously to meet special requirements such as stock trading, e-commerce sales and other multitasking.
AOOSTAR WTR PRO 4 BAY Ryzen 7 5825U NAS Mini PC (8C/16T, up to 4.5GHz) with Radeon graphics 8-core processor, processes multiple virtualization programs, adapts to a variety of systems and facilitates DIY your custom N-A-S. It can run 24/7, 15W - 25W low power consumption, energy saving.

512,00 €
09

TERRAMASTER

TERRAMASTER F4-425 4-Bay NAS Storage with Intel x86 Quad-Core CPU, 4GB RAM, 2.5GbE LAN, Home Multimedia Server for Network Storage (No Hard Drive)

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ultra-quiet and easy to use: The F4-425 NAS server operates at only 22 dB(A), making it ideal for quiet environments such as bedrooms. Thanks to its tool-free push-lock design, the hard drive bays can be installed in just 10 seconds.
TNAS Mobile Full Control: Initialize the setup of your F4-425 NAS storage via the TNAS Mobile App without a PC. The mobile app supports automatic photo and video backups as well as real-time local/remote synchronization, all managed from a single client.
Powerful: Equipped with an Intel x86 quad-core processor and 4GB RAM, the F4-425 network storage effortlessly handles 4K transcoding and multitasking. The 2.5GbE port ensures ultra-fast file transfers and supports multiple users simultaneous access.
Multimedia Hub for Home The F4-425 media server supports hardware level 4K H.265 decoding, is compatible with Plex, Emby and Jellyfin for smooth HD video playback, and features DLNA for seamless streaming on multiple devices. The Photos app provides an AI smart album and organizes millions of photos efficiently.
Enormous storage capacity and security: The F4-425 4-bay NAS supports up to 120TB of storage space (4 x 30 TB per bay), more than 50 independent user accounts, and flexible TRAID arrays, saving 30% more storage space than traditional RAID systems, while ensuring data redundancy. The SPC security module and CloudSync (supports Google Drive, OneDrive, Dropbox) guarantee worry-free data protection. In addition, TerraSync allows bi-directional synchronization between the F4-425 and PCs/Macs.

457,00 €