Top 5 NAS for Small Business: Essential Buying Guide

Imagine this: your small business is growing fast. Suddenly, you realize your important files are scattered everywhere—on different computers, maybe even on unreliable external hard drives. Panic sets in when you think about losing that crucial client data or project plan. How do you keep everything safe, organized, and easily accessible for everyone in your team?

Choosing the right Network Attached Storage (NAS) system feels overwhelming. You see terms like RAID configurations and throughput speeds, and it’s easy to get lost. Many small business owners worry about spending too much money or buying a system that is too complicated to set up. You need a reliable digital vault, not another headache.

This guide cuts through the confusion. We will break down exactly what a NAS is and show you the top features small businesses truly need. By the end of this post, you will know exactly which NAS features save you time and money, ensuring your business data stays secure and ready to go.

Let’s dive in and find the perfect storage solution to power your business growth.

Top Network Attached Storage For Small Business Recommendations

Bestseller No. 1
BUFFALO LinkStation 210 2TB 1-Bay NAS Network Attached Storage with HDD Hard Drives Included NAS Storage That Works as Home Cloud or Network Storage Device for Home
  • Value NAS with RAID for centralized storage and backup for all your devices. Check out the LS 700 for enhanced features, cloud capabilities, macOS 26, and up to 7x faster performance than the LS 200.
  • Connect the LinkStation to your router and enjoy shared network storage for your devices. The NAS is compatible with Windows and macOS*, and Buffalo's US-based support is on-hand 24/7 for installation walkthroughs. *Only for macOS 15 (Sequoia) and earlier. For macOS 26, check out our LS 700 series.
  • Subscription-Free Personal Cloud – Store, back up, and manage all your videos, music, and photos and access them anytime without paying any monthly fees.
  • Storage Purpose-Built for Data Security – A NAS designed to keep your data safe, the LS200 features a closed system to reduce vulnerabilities from 3rd party apps and SSL encryption for secure file transfers.
  • Back Up Multiple Computers & Devices – NAS Navigator management utility and PC backup software included. NAS Navigator 2 for macOS 15 and earlier. You can set up automated backups of data on your computers.
Bestseller No. 2
BUFFALO LinkStation 220 4TB 2-Bay NAS Network Attached Storage with HDD Hard Drives Included NAS Storage That Works as Home Cloud or Network Storage Device for Home
  • Value NAS with RAID for centralized storage and backup for all your devices. Check out the LS 700 for enhanced features, cloud capabilities, macOS 26, and up to 7x faster performance than the LS 200.
  • Connect the LinkStation to your router and enjoy shared network storage for your devices. The NAS is compatible with Windows and macOS*, and Buffalo's US-based support is on-hand 24/7 for installation walkthroughs. *Only for macOS 15 (Sequoia) and earlier. For macOS 26, check out our LS 700 series.
  • Subscription-Free Personal Cloud – Store, back up, and manage all your videos, music, and photos and access them anytime without paying any monthly fees.
  • Storage Purpose-Built for Data Security – A NAS designed to keep your data safe, the LS200 features a closed system to reduce vulnerabilities from 3rd party apps and SSL encryption for secure file transfers.
  • Back Up Multiple Computers & Devices – NAS Navigator management utility and PC backup software included. NAS Navigator 2 for macOS 15 and earlier. You can set up automated backups of data on your computers.
Bestseller No. 3
SSK 4TB Personal Cloud Network Attached Storage Support Wireless Remote Access, Home Office NAS Storage with 4T Hard Drive Included for Phone, Tablet, Laptop Auto-Backup, Wired Ethernet Only,No WiFi
  • Your personal cloud storage with 4TB large capacity doesn't have own WIF: This NAS built-in 3.5inch 4TB storage, as long as it is powered and connected to the internet, you will be able to remote access and manage the storage data anywhere by PC/Mobile phone,without geographical restrictions.Point to Point(P2P) confidential transmission to ensure the data security.Support Samba and DLNA Protocol, all smart devices interconnection in the same LAN, smart TVs,laptops and mobile phones
  • Two working mode with LED Indicator: Two working mode meets all of your needs. NAS(Network-attachment Storage) Mode and DAS(Direct-attached storage) Mode. With 1000M Ethernet port for NAS mode, true network speed can reach to 10-30MB/s. With USB3.0 High speed transmission port for DAS mode to transfer larger numbers of various sized files. Two Modes with different LED indicator colors, easy understanding
  • Centralize all your data: Support IOS, Android, Windows, MAC, all have proprietary client software, centralize all your photos,When downloading from the web page, do not use the Google Chrome browser to download, please use the IE (Internet Explorer) browser or safari browser to download on the computer
  • One-click back up & Auto sleep: One-click backup of photos and videos, designated folders real-time synchronous update and backup on Mobile Phone/ Tablet /PC, you can save everything and access anywhere. No longer to worry when you are on a business trip, go hiking and travel around the world. This 4TB Personal Cloud Network Attached Storage will automatically switch the work/sleep state according to the usage, which can better reduce power consumption and protect the drive
  • Smart management: Smart App/Software, multi-people sharing at the same time; Support Samba&Dlna Protocol, all smart devices interconnection in the LAN, smart TVs, laptops and mobile phones can share SSK Drive data; Divide Hard drive to Private Area and Public Area, better to keep private information, more safety
Bestseller No. 4
TERRAMASTER F4-424 Pro NAS Storage - 4Bay Core i3-N305 8-Core 8-Thread CPU, 32GB DDR5 RAM, 2.5GbE Port x 2, Network Attached Storage Peak Performance for Business (Diskless) Black
  • Peak Performance 4-Bay NAS: Unleash the power of the F4-424 Pro NAS storage, featuring a Core i3-N305 8-core 8-thread CPU at 3.8GHz (turbo), integrated UHD GPU at 1.25GHz, 32GB DDR5 4800MHz memory (non-ECC, non-upgradable), dual 2.5G Ethernet ports, and dual M.2 NVMe slots for SSD caching. An ideal peak performance NAS storage solution for small and medium-sized business users.
  • Enhanced Application Speed: The F4-424 Pro NAS enclosure, equipped with a robust CPU and DDR5 memory, achieves a remarkable 150% performance boost over its predecessors. Experience 100% faster application load times, a 45% increase in file and photo retrieval speed, a 55% improvement in database response speed, and a outstanding 65% faster PHP response for web pages. Elevate your workflow efficiency with seamless high-load performance.
  • High-Speed Connectivity: The F4-424 Pro NAS case features dual 2.5 GbE interfaces and can achieve a linear data transmission speed of 283 MB/s (tested with NAS dedicated HDDs 18TB x 4, RAID 0), Link Aggregation offers a network bandwidth up to 5 Gb, ideal for multi-user and high-concurrent file access. Featuring dual USB 3.2 10Gbps interfaces, data transfer between your NAS and external devices is made swift. The F4-424 Pro supports various RAID types, including RAID 0/1/5/6/10/JBOD/Single, and TRAID.
  • Effortless M.2 SSD Installation: TerraMaster streamlines M.2 SSD handling in the F4-424 Pro NAS server with a side-sliding cover, allowing quick and simple SSD installation. The inclusion of hand-tightened screws ensures a hassle-free installation process. The F4-424 Pro adopts a tool-free hard disk tray, eliminating the need for additional tools during hard disk installation. Additionally, TerraMaster's innovative Push-Lock design automatically secures inserted hard disks, preventing accidental disconnection or offline issues.
  • Rich Backup Solutions: Centralized Backup, Duple Backup, Snapshot, CloudSync, TFM Backup, and more enhance the security of your data with multiple backup applications. The F4-424 Pro 4 bay NAS adopts TerraMaster's new structure which besides incorporating additional shock-absorbing measures, TerraMaster’s engineers have designed numerous special sound-absorbing panels in the new structure to minimize noise.
Bestseller No. 5
The 2021-2026 World Outlook for Small and Medium-Sized Business Network-Attached Storage (NAS)
  • Parker Ph.D., Prof Philip M. (Author)
  • English (Publication Language)
  • 315 Pages - 02/13/2020 (Publication Date) - ICON Group International, Inc. (Publisher)
Bestseller No. 6
TERRAMASTER F4-425 Plus NAS Storage - 4Bay Intel N150 Quad-Core CPU, 16GB RAM DDR5, 5GbE LAN x 2, M.2 Slot x 3, Network Attached Storage for Teamwork, Multimedia Server (Diskless)
  • Powerful 4-Bay NAS with Triple M.2 Expansion: Powered by the Intel N150 Quad-Core CPU (up to 3.6GHz) and 16GB DDR5 memory, the F4-425 Plus NAS storage delivers high-efficiency performance for demanding users. Its innovative triple M.2 SSD design supports SSD cache or independent storage pools, providing outstanding flexibility and acceleration for data-heavy tasks.
  • Dual 5GbE LAN Ports up to 1020MB/s: Featuring dual 5GbE network interfaces, the F4-425 Plus network attached storage supports link aggregation and SMB Multichannel, achieving up to 1020 MB/s sequential read/write speeds. Ideal for video editors, creative teams, and small business offices that require fast and reliable data access.
  • Massive 144TB Storage with Flexible TRAID Protection: The F4-425 Plus 4-bay NAS supports up to 144TB total capacity (4× HDD + 3× M.2 SSD). TerraMaster's exclusive TRAID technology automatically optimizes capacity while providing strong data protection, with advanced features such as TFSS snapshots and HyperLock-WORM for enhanced data security.
  • All-in-One Hub for Pros, Businesses & Home Users: From geeks running Docker, Virtual Machines, and Portainer, to small businesses leveraging TerraMaster BBS (Business Backup Suite), and families enjoying Plex/Emby/Jellyfin with 4K/8K transcoding - The F4-425 Plus NAS server fulfills diverse needs. Integrated apps like QB/Torrent/Transmission simplify downloads, while TNAS Mobile enables full remote control.
  • Data Drive Mounting & Reliable Aluminum Design: Easily integrate your existing storage by first installing TOS 6 on a new drive. Unlike other NAS systems that require disk formatting, TerraMaster's Direct Data Drive Mounting technology allows you to then hot-plug the existing data drive for instant access, ensuring all your files remain secure and untouched. Housed in a durable aluminum-alloy chassis with Push-Lock HDD trays, this NAS enclosure combines convenience, security, and reliability for long-term use.
Bestseller No. 7
QNAP TR-004 4 Bay USB Type-C Direct Attached Storage (DAS) with hardware RAID (Diskless)
  • Direct-attached storage device via USB Type-C for Windows, macOS and Linux
  • Use the TR-004 as external storage for NAS backup
  • Expand the capacity of your QNAP NAS
  • 4 x 3.5-inch SATA 3Gb/s (Diskless)
  • Hardware RAID supports RAID 0, 1, 5, JBOD, and individual disks
Bestseller No. 8
TERRAMASTER T12-500 Pro NAS Storage - 12Bay Core i7 1255U 10-Cores 12-Threads CPU, 16GB DDR5 RAM, Dual 10GbE Ports, Network Attached Storage Peak Performance for Business (Diskless)
  • High-Performance Backup Server: The T12-500 Pro NAS storage is powered by Core i7-1255U processor with 10 cores, 12 threads, and turbo speeds up to 4.7GHz. It features Iris Xe Graphics with a 1.25GHz dynamic frequency and supports AES NI hardware encryption. Equipped with 16GB DDR5 memory and dual 10 Gigabit Ethernet ports, it delivers strong performance. Its two M.2 NVMe slots enhance storage efficiency with Hyper Cache. This makes the T12-500 Pro a top choice for high-performance backup solutions for small to medium-sized businesses.
  • 20Gb Lightning-Fast Throughput: The T12-500 Pro NAS server features dual 10GbE Ethernet ports, offering up to 20Gbps bandwidth. With SMB multichannel support, it achieves up to 2090MB/s sequential write speeds and 450MB/s 4K random read/write speeds. This performance ensures seamless image and video handling, making it perfect for film production, post-production, and high-demand virtualized environments.
  • Flexible Storage Solutions: The T12-500 Pro NAS enclosure supports various RAID configurations, including Single, RAID 0, 1, 5, 6, and 10. The T12-500 Pro 12-bay NAS can accommodate up to 9 3.5-inch SATA hard drives, offering a remarkable maximum storage capacity of up to 288TB (using 24TB HDDs as an example). It features TerraMaster’s TRAID/TRAID+ for online capacity expansion, migration, and redundant disk setups. Users can select between ext4 and Btrfs file systems, and expand storage effortlessly with the TerraMaster USB DAS disk array.
  • Versatile Backup Solutions: The T12-500 Pro backup server delivers enterprise-grade disaster recovery tailored for diverse needs, including data protection for small to medium-sized businesses, campus cloud storage, document management for design institutions, and PACS digital medical data. It ensures efficient, secure, and compatible backup solutions in a centralized digital environment.
  • Comprehensive Business Backup Solution: The T12-500 Pro network attached storage comes with TerraMaster Business Backup Suite (BBS) which is an enterprise-grade solution that includes Centralized Backup for data consolidation, TerraSync for server and PC synchronization, Duple Backup for off-site recovery, CloudSync for cloud recovery, and Snapshot for ransomware protection. BBS offers flexible, high-performance backup strategies tailored for small and medium-sized enterprises.

Your Small Business NAS Buying Guide: Storing Smartly

Network Attached Storage (NAS) is like having your own private cloud storage right in your office. It helps small businesses share files, back up important data, and keep everything organized. Choosing the right one can feel tricky, but this guide makes it easy.

1. Key Features to Look For

When shopping for a small business NAS, focus on these important features:

  • Capacity and Bays: This tells you how much space you have and how many hard drives (bays) you can fit. For a small team, start with at least a 2-bay or 4-bay unit. More bays mean more room to grow later.
  • RAID Support: RAID (Redundant Array of Independent Disks) protects your data. If one hard drive fails, RAID keeps your files safe on the other drives. Look for support for RAID 1 (mirroring) or RAID 5 (stripping with parity) for good protection.
  • Speed and Connectivity: Fast connections are vital. Ensure the NAS has Gigabit Ethernet (1GbE) ports. If you work with very large files (like video), look for newer models with 2.5GbE or 10GbE ports for quicker transfers.
  • Software and Apps: The best NAS systems offer easy-to-use software. Check if they support essential apps like file synchronization, remote access, and automatic backup tools for your computers.
2. Important Materials and Build Quality

The physical parts of the NAS matter for how long it lasts and how cool it runs.

Most NAS enclosures use sturdy metal casings, usually aluminum or steel. Metal helps keep the internal components cool, which is important because hard drives generate heat when running constantly. Good airflow design, often involving quiet, high-quality cooling fans, prevents overheating. Overheating reduces the lifespan of your drives.

Drives Matter: Remember that the NAS box itself usually does not include the hard drives. You must buy them separately. Always choose hard drives specifically labeled for NAS use (like Western Digital Red or Seagate IronWolf). These drives are built to run 24/7, unlike regular desktop drives.

3. Factors That Improve or Reduce Quality

The quality of your NAS experience depends on a few key choices:

  • Processor (CPU) and RAM: A faster processor and more RAM (memory) make the NAS feel snappier. If many people use the NAS at once, or if you run extra services (like a simple website or surveillance camera recording), you need a more powerful CPU and at least 4GB of RAM. A weak CPU causes frustrating slowdowns.
  • Ease of Setup: High-quality NAS systems have simple setup wizards. If setup feels overly complicated, you risk misconfiguring security settings, which reduces overall quality and security.
  • Vendor Support: Good customer support and regular firmware updates are crucial. Updates fix security holes and add new features. Poor support means you are stuck with old software.
4. User Experience and Use Cases

How you plan to use the NAS dictates which model you should buy.

File Sharing: This is the most common use. Everyone on your team needs quick access to shared documents. A user-friendly interface makes daily file access seamless.

Data Backup: Use the NAS for centralized backups. You should be able to set up automatic backups for all Windows PCs and Macs in the office. This saves time and prevents data loss.

Remote Access: If employees work from home, they need secure ways to reach files. Look for NAS systems that offer secure VPN or cloud link services so remote users can connect safely without needing complex IT setups.

Scalability: A good small business NAS lets you easily add larger hard drives later as your data grows. You should not have to buy a whole new system every two years.


10 Frequently Asked Questions (FAQ) About Small Business NAS

Q: What is the main difference between a NAS and a regular external hard drive?

A: A regular drive plugs into one computer. A NAS connects to your router, allowing every device on your network to access it simultaneously over the internet or locally.

Q: Do I need to buy the hard drives separately?

A: Yes, usually the NAS enclosure is sold empty. You must purchase hard drives designed for NAS use and install them yourself.

Q: Is a NAS difficult to set up for someone who isn’t an IT expert?

A: Modern NAS systems use simple, web-based setup tools. Most setups can be completed in under an hour, guided by step-by-step instructions.

Q: How important is RAID for a small business?

A: RAID is very important. It protects your business data. If one drive breaks, RAID ensures your files remain accessible on the remaining drives.

Q: Can I access my files when I am away from the office?

A: Yes. Most major brands offer mobile apps or secure web portals that let you access and upload files securely from anywhere with an internet connection.

Q: How many users can typically use a standard 4-bay NAS?

A: A standard 4-bay NAS handles 5 to 20 simultaneous users very well, depending on the processing power inside the unit.

Q: Should I choose SSDs or traditional HDDs for my NAS?

A: Traditional HDDs (Hard Disk Drives) offer much more storage space for less money, making them best for bulk storage. SSDs are faster but much more expensive for large capacities.

Q: What is “hot-swapping” and why is it useful?

A: Hot-swapping means you can replace a failed hard drive while the NAS is still running. This minimizes downtime and keeps your office working.

Q: Does a NAS replace cloud services like Dropbox?

A: It can. A NAS gives you more control over your data security and avoids monthly subscription fees for large amounts of storage.

Q: How often should I update the NAS software (firmware)?

A: You should always enable automatic updates or check for updates monthly. Updates fix security flaws and improve performance.