Best 4 Bay NAS Enclosures of 2025

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 31 Jan 2025

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4 Bay NAS Enclosures are network attached storage devices that allow users to store and share data across multiple devices. These enclosures typically have four bays that can accommodate multiple hard drives, providing ample storage capacity. They are ideal for small to medium-sized businesses or households that require a centralised storage solution. With features such as data backup, remote access, and media streaming, 4 Bay NAS enclosures are a reliable and efficient option for managing data.

At a Glance: Our Top Picks

Synology DS923+ 4 Bay Network Attached Storage Cover #TOP 1
Synology DS923+ 4 Bay Network Attached Storage
ftb score rating icon 9.8
Synology DS423 4 Bay NAS for Data Storage Cover #TOP 2
Synology DS423 4 Bay NAS for Data Storage
ftb score rating icon 9.7
Asustor Drivestor 4 Pro NAS Enclosure Cover #TOP 3
Asustor Drivestor 4 Pro NAS Enclosure
ftb score rating icon 9.5

Top 10 4 Bay NAS Enclosures

#TOP 1

Synology DS923+ 4 Bay Network Attached Storage

DS923+
Black
Enclosure
Synology DS923+ 4 Bay Network Attached Storage Cover
Synology DS923+ 4 Bay NAS enclosure

The Synology DS923+ is a powerful NAS enclosure designed to enhance your data management experience. Featuring an AMD Ryzen R1600 CPU, it operates at a frequency of 2.6GHz, with the capability to boost to 3.1GHz when needed, ensuring smooth performance for your tasks. Its 2-core and 4-thread design means you can run multiple processes efficiently. The built-in hardware encryption engine (AES-NI) offers a secure way to protect your data, making it ideal for sensitive information. With these features, the Synology DS923+ provides speed, efficiency, and security for all your storage needs.

What We Like
Powerful AMD Ryzen R1600 CPU
Fast 2.6GHz base frequency
Secure hardware encryption
Efficient multi-thread performance
Ideal for sensitive data storage
#TOP 2

Synology DS423 4 Bay NAS for Data Storage

DS423
Black
Standard Warranty
Synology DS423 4 Bay NAS for Data Storage Cover
Synology DS423 4 Bay Desktop NAS: Efficient Data Storage and Backup

The Synology DS423 NAS offers an efficient solution for your data storage needs. With centralized data storage, you can consolidate up to 72 TB of data, ensuring you have complete ownership and easy access across multiple platforms from anywhere. Secure sharing and syncing features allow you to safely access and share files with friends or collaborators, keeping everyone updated. You can also protect your valuable media and documents effortlessly by backing them up to multiple destinations, while snapshots help safeguard against malware, providing you peace of mind.

What We Like
Large storage capacity
Easy file sharing
Robust data protection
Versatile surveillance options

Asustor Drivestor 4 Pro NAS Enclosure

AS3304T
Drivestor Pro
4 Bay
Asustor Drivestor 4 Pro NAS Enclosure Cover
Asustor Drivestor 4 Pro AS3304T 4 Bay NAS, Quad Core 1.4 GHz CPU, 2GB RAM DDR4, Personal Private Cloud, Network Attached Storage Enclosure (Diskless)

The Asustor Drivestor 4 Pro is a powerful NAS enclosure designed for home and small office users. With its Realtek RTD 1296 Quad Core 1.4 GHz CPU and 2GB DDR4 RAM, you’ll enjoy reliable performance for all your storage needs. It accommodates up to 72TB of storage, allowing you to expand easily as your data grows. The 2.5 Gigabit Ethernet port enhances your connectivity, providing double the performance of standard Gigabit devices. Plus, with support for transcoding 10-bit 4K H.265 media, you can experience smooth video playback effortlessly.

What We Like
High-performance quad-core CPU
Expandable storage up to 72TB
Fast 2.5 Gigabit Ethernet
Supports 4K media transcoding
#TOP 4

Asustor Drivestor 4 AS1104T 4 Bay NAS

AS1104T
Drivestor
4 Bay
Asustor Drivestor 4 AS1104T 4 Bay NAS Cover
Asustor Drivestor 4 AS1104T - 4 Bay NAS, 1.4GHz Quad Core, 2.5GbE Port, 1GB RAM DDR4 Personal Private Cloud (Diskless)

The Asustor Drivestor 4 is designed to enhance your personal cloud experience. With 1 GB DDR4 RAM, it offers a 40% increase in efficiency compared to older memory types, allowing for faster data processing. The 2.5GbE port ensures quicker network speeds, which is ideal for transferring large files. Additionally, it supports Wake on LAN and Wake on WAN features, enabling you to remotely access your NAS conveniently. This means you can easily manage your files from anywhere, making it a practical choice for users seeking flexibility.

What We Like
Efficient 1GB DDR4 memory
Fast 2.5GbE network speeds
Remote access capabilities
Supports Wake on LAN/WAN
#TOP 5

Asustor Lockerstor 4 Gen 2 NAS Unit

116436
Lockerstor Gen2
4 Bay
Asustor Lockerstor 4 Gen 2 NAS Unit Cover
Asustor Lockerstor 4 Gen 2 AS6704T | 4 Bay NAS, Quad Core 2.0GHz CPU, 4 M.2 PCIe 3.0 SSD Slots, 2 2.5GbE Ports, 4GB RAM DDR4, Network Attached Storage (Diskless)

The Asustor Lockerstor 4 NAS boasts a powerful Quad-Core 2.0GHz Intel Celeron N5105 CPU, offering you 31% more performance compared to previous models. With its superfast 2.5-Gigabit Ethernet ports, you can enjoy smoother streaming and quicker uploads. The flexible PCIe slot allows you to enhance performance further by adding 10GbE NICs or M.2 SSDs. Plus, the device supports DDR4-2933 memory, providing you with a 40% performance boost for your data tasks.

What We Like
High-performance CPU
Fast Ethernet connectivity
Expandable storage options
Enhanced memory speed
#TOP 6

KCMconmey 4 + 1 Bay DIY NAS Case

KCMconmey
black
4 + 1 Bay
KCMconmey 4 + 1 Bay DIY NAS Case Cover
KCMconmey 4 + 1 Bay DIY NAS Case, 4 x 2.5″ / 3.5″ Tray + 1 x 2.5″ Internal Bay. MB ITX. PSU Flex. Front USB 3.0 8cm Chassis Fan Hot Swap Backplane. Network Attached Storage Private Cloud Enclosure.

The KCMconmey NAS Enclosure is designed to support a Mini ITX motherboard, making it ideal for compact setups. With its flexibility to accommodate either a Flex or 1U Power Supply Unit, you can choose the power supply that best fits your needs. This enclosure also allows for a single slot full-height PCI-e expansion card, enabling you to enhance your system with additional capabilities like video or network cards. Additionally, two front USB 3.0 ports facilitate faster data transfers, ensuring you can quickly access and manage your files.

What We Like
Supports Mini ITX motherboards
Flexible power supply options
Expansion card compatibility
Fast data transfer with USB 3.0
Includes replaceable chassis fan
#TOP 7

TERRAMASTER F4-223 High Performance NAS Storage

4 Bay Dual-Core NAS
TERRAMASTER F4-223 High Performance NAS Storage Cover
TERRAMASTER F4-223 4Bay NAS Storage – High Performance for SMB with N4505 Dual-Core CPU, 4GB DDR4 Memory, 2.5GbE Port x 2, Network Storage Server (Diskless)

The TERRAMASTER F4-223 NAS offers impressive performance with its N4505 dual-core 2.0GHz CPU and 4GB DDR4 RAM, expandable to 32GB. With dual 2.5-Gigabit Ethernet ports, you can achieve fast data transfer speeds, making it ideal for small and medium businesses. The device supports a maximum internal raw capacity of 80TB, allowing you to store large amounts of data efficiently. Its multiple backup solutions enhance data safety, providing peace of mind for your important files.

What We Like
High performance for SMBs
Expandable storage capacity
Fast data transfer speeds
Multiple backup options
Quiet operation
#TOP 8

Asustor NIMBUSTOR 4 AS5304T NAS Enclosure

90IX0181-BW3S10
4 Bay
Asustor NIMBUSTOR 4 AS5304T NAS Enclosure Cover
Asustor NIMBUSTOR 4 AS5304T 4 Bay NAS | Network Attached Storage Enclosure, Quad Core 1.5GHz, 4GB RAM DDR4, Personal Private Cloud (Diskless)

The Asustor NIMBUSTOR 4 offers impressive performance with its Intel Celeron J4105 quad-core CPU and 4GB of DDR4 RAM, expandable to 8GB. This makes it an ideal choice for power users and enthusiasts seeking enhanced computing capabilities. You can easily expand your storage up to 72TB by using 2.5" or 3.5" SATA SSDs or HDDs. Additionally, with dual 2.5 Gigabit Ethernet ports, you can enjoy up to 150% faster performance, especially when using Link Aggregation mode. The HDMI 2.0a support allows you to experience stunning 4K HDR content, making it perfect for media enthusiasts.

What We Like
Powerful quad-core CPU
Expandable storage options
Fast Ethernet performance
4K HDR support

QNAP TS-932PX-4G 9 Bay NAS Enclosure

TS-932PX-4G
Black
QNAP TS-932PX-4G 9 Bay NAS Enclosure Cover
QNAP TS-932PX-4G 9 Bay (5 + 4) Desktop NAS Enclosure - 10GbE SFP+ and 2.5GbE Connectivity - 5 x 3.5-inch Drive Bays & 4 x 2.5-inch SATA Drive Bays

The QNAP TS-932PX NAS offers impressive connectivity with two 10GbE SFP+ and two 2.5GbE RJ45 ports, making it ideal for bandwidth-demanding tasks and fast file sharing. The HBS feature ensures comprehensive backup and data recovery, allowing you to optimise storage while reducing backup times. With snapshot functionality, you can easily protect your files from accidental deletions and malware. Additionally, the cloud storage gateways enhance your hybrid cloud applications, ensuring low-latency data access whenever you need it.

What We Like
High-speed connectivity options
Efficient data backup and recovery
Protects against data loss
Supports hybrid cloud applications
#TOP 10

QNAP TS-431XEU-2G 4 Bay NAS Enclosure

TS-431XEU-2G
Black
2 GB RAM
QNAP TS-431XEU-2G 4 Bay NAS Enclosure Cover
QNAP TS-431XEU-2G 4 Bay Rackmount NAS Enclosure - 2 GB RAM, 1.7 GHz Quad Core Processor - Short Depth with a Built-in 10GbE SFP+ port

The QNAP TS-431XEU NAS offers a short depth design, making it ideal for smaller racks or tight spaces, ensuring it fits seamlessly into your setup. With 10GbE readiness and SSD caching, you can experience faster data transfers and enhanced performance. The encryption acceleration engine provides secure data management, giving you peace of mind. Additionally, the VJBOD feature allows you to expand the storage capacity of other QNAP NAS devices, making it a versatile choice for your storage needs.

What We Like
Compact design for limited spaces
Fast data transfer speeds
Enhanced data security
Expandable storage capacity
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How many bays should my NAS have?

A NAS with four or more bays gives you more storage options than a two-bay NAS does. For starters, you can opt for RAID 5, 6, or 10; those data-storage configurations require three or more disks but provide better data protection and (depending on which RAID configuration you choose) can offer better performance.

2. What is a NAS enclosure?

A network-attached storage (NAS) enclosure is a storage device that provides hard disk drive (HDD) capacity to devices connected to a network.

3. Do I need a NAS enclosure?

Is a NAS device at home necessary? In most cases, yes! ... NAS devices often have redundancy and allows for a second copy of your data to be made in case a hard disk fails – something that does not happen with single drive external hard drives. A disaster-proof NAS is even better.

Editor's Notes

During our 4 bay nas enclosure research, we found 39 4 bay nas enclosure products and shortlisted 10 quality products. We collected and analyzed 6,050 customer reviews through our big data system to write the 4 bay nas enclosures list. We found that most customers choose 4 bay nas enclosures with an average price of £465.39.

The 4 bay nas enclosures are available for purchase. We have researched hundreds of brands and picked the top brands of 4 bay nas enclosures, including Synology, Asustor, KCMconmey, TERRAMASTER, QNAP. The seller of top 1 product has received honest feedback from 273 consumers with an average rating of 4.1.

Written by
Kenneth Collin Avatar

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.