Best Nas 4 Bay Test 2026

Advertising Disclosure

Last Updated - 27.03.2026

Best Choice

01

UGREEN

UGREEN NASync DXP480T Plus 4-Bay All-Flash NAS, Intel i5-1235U 10-Core, 8GB DDR5, 128GB SSD, 10GbE, Wi-Fi 6, 4×M.2 NVMe, 8K HDMI, 2×Thunderbolt 4, Compatible with Third Party SSD (without Hard Drives)

Show more

14% Off
9.8

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.

Show more
Main highlights

Unparalleled processing performance: With an Intel Core i5 processor of the 12th Generation with 10 cores and 12 threads, processing performance is improved by leaps and bounds compared to previous processors.
Professional data security: Compared to cloud drives, NASync allows users to store large amounts of personal data on trusted local devices, largely preventing data loss and monitoring. Data transfer and accounts can be fully protected with professional encryption and multi-factor authentication.
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.
Attention: M.2 SSD with heatsinks are not supported.
An all-encompassing app: Instead of downloading individual applications for specific features, the NAS app integrates these features in one place. Access the storage manager, files, photos and more from one convenient location.
All-Flash, 32TB Huge Data Storage: Equipped with four M.2 NVMe slots for SSD, this all-flash NASync offers lightning-fast read/write speeds and has a maximum storage capacity of up to 32TB. Store thousands of HD movies, pictures and documents and make NASync a movie library, photo album and file storage in one.
10GbE network connection and Wi-Fi 6: With a 10GbE network port that reaches top speeds of 1250 MB/s, you can easily download large videos and images. With the built-in Wi-Fi 6 function, you can connect wirelessly anytime, anywhere.

858,45 € 999,99 €(14% Off off)
02

UGREEN

UGREEN NASync DXP4800 Pro, 4-Bay Desktop NAS, Intel i3-1315U 6-Core Processor, 8GB DDR5 RAM (up to 96GB), 128GB SSD, 1×10GbE, 1×2.5GbE, 2×M.2 NVMe Slots, HDMI 4K (Without hard dis)

Show more
9.7

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.

Show more
Main highlights

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.

779,99 €
Value for Money

03

UGREEN

UGREEN NASync DH4300 Plus 4-Bay Desktop NAS, 2.5GbE LAN Port, 8GB LPDDR4X RAM, NFC One-Touch Connection, AI Families and Baby Album, Personal Cloud for Home/Office (Without HDD)

Show more

16% Off
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.

Show more
Main highlights

Your data in your hand: Store your data securely locally. Advanced encryption, firewall and two-factor authentication reliably protect your files from unauthorized access - even UGREEN has no access to your private data.
User-friendly app: Hassle-free setup and easy file sharing on Windows, macOS, Android, iOS, web browsers and smart TVs – secure access from any device, anytime and anywhere.
Powerful and efficient hardware: Powered by powerful & efficient SoC and 2.5GbE, everything runs energy efficient and fluid – even with multiple applications. 1GB transfers in just 3 seconds - ideal for video editing, 4K streaming and everyday data storage.
Note: Hard drives are not included and must be purchased separately; the specified maximum capacity of 128 TB is achieved by configuring multiple hard drives in RAID 0 mode.
NO MONTHLY FEE A purchase to save all your family memories. Eliminating cloud storage costs will save you €719.88 per year*(Based on the standard package of €59.99/month for 12TB)
Huge storage capacity of 128TB - Provides ample space to safely back up all your files, photos, videos and memories with extra room for future growth.
AI automatically organizes photos by faces, scenes and locations, removes duplicates and creates personalised baby growth albums - so all precious moments are easily preserved and easy to share with family via QR code or link.

369,00 € 439,99 €(16% Off off)
04

UGREEN

UGREEN NASync DXP4800 Plus, 4-Bay Desktop NAS, Intel Pentium Gold 8505 Processor with 5 Cores, 8GB DDR5 RAM, 128GB SSD, 1×10GbE, 1×2.5GbE, 2×M.2 NVMe Slots, HDMI 4K (No Hard Drives)

Show more

11% Off
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.

Show more
Main highlights

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.

646,92 € 729,99 €(11% Off off)
05

Synology

SYNOLOGY DS925+ 4-Bay DiskStation (up to 9-Bay), AMD Ryzen V1500B, 4GB RAM

Show more
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.

Show more
Main highlights

SYNOLOGY DS925+ 4-bay DiskStation (up to 9-bay), AMD Ryzen V1500B, 4GB RAM

599,00 €
06

TERRAMASTER

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

Show more
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.

Show more
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.

377,19 €
07

Synology

Synology Diskstation DS423 NAS System

Show more
8.6

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.

Show more
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

389,00 €
08

QNAP

QNAP TS-432X-4G NAS/storage server Tower Alpine Alpine AL-524 4 GB DDR4 Qnap QTS Black

Show more

16% Off
8.5

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.

Show more
Main highlights

Number of storage drive supported: 4 HDD & SSD Serial ATA,Serial ATA II,Serial ATA III
Home & Home Office NAS Tower Black
Ethernet/LAN 10000 DHCP Server Jumbo Frames Support iSCSI Support Wake-on-LAN Ready
Alpine Alpine AL-524 2 GHz
4 DDR4 memory card slots: 1 SO-DIMM ECC

599,00 € 712,81 €(16% Off off)
09

TERRAMASTER

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

Show more
8.4

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.

Show more
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.

157,49 €
10

Synology

Synology DiskStation DS425+ 4-Bay 3.5" DiskStation without Disk Intel Celeron J4125 1x1GbE + 1x2.5GbE 2GB RAM 2xUSB 3.2

Show more
8.2

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.

Show more
Main highlights

Plus Series 3.5" SATA Hard Drive: HAT3300 Series
Maximum IP camera: 25 (total 750 FPS at 720p, H.264) (including two free camera licenses; additional cameras require purchase of additional licenses)
Enterprise Series M.2 2280 NVMe SSD:SNV3400 Series
DDR4 Non-ECC SODIMM:D4NS01-4G
Built-in M.2 2280 NVMe SSD slots allow cache acceleration without occupying storage drive bays
Back up critical data and reduce your recovery time goal (RTO) with snapshot replication
3.5" SATA Hard Drive Enterprise Series: HAT5300 Series
2GB DDR4 integrated (expandable up to 6GB by adding 1 x D4NS01-4G)
2.5" SATA SSD Enterprise Series: SAT5200 Series

489,00 €