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Usually, no: if your cloud plan already gives you enough space, convenient access and sharing, and a backup arrangement you trust, a NAS is optional. A NAS makes more sense when you want files stored locally and centrally at home, or you want local storage alongside cloud services. It adds hardware, setup, upkeep, and does not by itself protect your files if your home and the equipment there are lost.
What a NAS adds that cloud storage does not
A network-attached storage device, or NAS, is a storage device connected to your home network. It centralizes files and backup data so devices on that network can access them. Instead of relying only on a provider’s remote infrastructure, you own a device and drives that hold a local copy of your data. QNAP describes NAS devices as supporting centralized storage and scheduled backups; some systems can also mount existing public cloud storage.
That difference matters most when you have a reason to keep a local store: perhaps you want files available on your home network, want a central destination for device backups, or want to combine local capacity with cloud storage. A NAS is not automatically a better version of a cloud plan. It changes where storage lives and who manages the equipment.
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Cloud storage is managed as a service: you use the provider’s account and plan rather than acquiring and maintaining the storage device yourself. A NAS shifts those hardware and configuration responsibilities to you. The exact access, sharing, and backup features depend on the cloud service and NAS system, so compare the workflows you actually use rather than assuming either option includes a particular feature.
#1 Best Overall
- Entry-level NAS Personal Storage：UGREEN NAS DH2300 is your first and best NAS made easy. It is designed for beginners who want a simple, private way to store videos, photos and personal files, which is intuitive for users moving from cloud storage or external drives and move away from scattered date across devices. This entry-level NAS 2-bay perfect for personal entertainment, photo storage, and easy data backup (doesn't support Docker or virtual machines).
- Set Your Devices Free, Expand Your Digital World: This unified storage hub supports massive capacity up to 64TB.*Storage drives not included. Stop Deleting, Start Storing. You can store 22 million 3MB images, or 2 million 30MB songs, or 43K 1.5GB movies or 67 million 1MB documents! UGREEN NAS is a better way to free up storage across all your devices such as phones, computers, tablets and also does automatic backups across devices regardless of the operating system—Window, iOS, Android or macOS.
- The Smarter Long-term Way to Store: Unlike cloud storage with recurring monthly fees, a UGREEN NAS enclosure requires only a one-time purchase for long-term use. For example, you only need to pay $459.98 for a NAS, while for cloud storage, you need to pay $719.88 per year, $2,159.64 for 3 years, $3,599.40 for 5 years. You will save $6,738.82 over 10 years with UGREEN NAS! *NAS cost based on DH2300 + 12TB HDD; cloud cost based on 12TB plan (e.g. $59.99/month).
- Blazing Speed, Minimal Power: Equipped with a high-performance processor, 1GbE port, and 4GB RAM on Board, this NAS handles multiple tasks with ease. File transfers reach up to 125MB/s—a 1GB file takes only 8 seconds. Don't let slow clouds hold you back; they often need over 100 seconds for the same task. The difference is clear.
- Let AI Better Organize Your Memories: UGREEN NAS uses AI to tag faces, locations, texts, and objects—so you can effortlessly find any photo by searching for who or what's in it in seconds. It also automatically finds and deletes similar or duplicate photo, backs up live photos and allows you to share them with your friends or family with just one tap. Everything stays effortlessly organized, powered by intelligent tagging and recognition.
When your existing cloud plan is enough
Keep using cloud storage on its own if it meets your real needs. A NAS is difficult to justify simply because it is popular, or because “local” sounds inherently safer. Before buying, check your current plan and how you use it:
- Capacity: Is there enough room for the files you need to store, including the growth you reasonably expect?
- Access: Can you reach the files from the devices and places that matter to you?
- Sharing: Does your existing service make it easy to share files in the way you need?
- Protection: Do you understand what your current account protects and have a separate backup arrangement for important data?
- Effort: Are you content with a service-managed plan, or do you want to own and maintain local storage?
If those answers are satisfactory, there is no requirement to add a NAS. A second storage system brings costs and responsibilities; it is worthwhile only if the local capacity, centralization, or hybrid setup solves a problem you actually have.
When a NAS may be worth adding
You want local, centralized capacity
A NAS can give devices on your home network a shared place to access files and store backup data. That can be useful when you would rather keep a central local copy than depend exclusively on cloud storage. Synology describes home NAS systems as supporting hard disk drives (HDDs) and solid-state drives (SSDs), with supported capacity depending on the selected device and compatible drives.
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Rank #2
- 【Advanced Home Data & Media Hub】For advanced home users who need phone backup, file storage, and centralized data management. Centralize family photos, 4K videos, movies, computer backups, and personal files in one place while running multiple apps for home entertainment and everyday data management. Suitable for households with growing digital libraries and multiple NAS use cases.
- 【Built for Creators, Media Servers & Advanced Apps】Powered by the Intel N100 Quad-Core CPU, 8GB DDR5 RAM, 2.5GbE networking, and dual M.2 NVMe slots, DXP2800 handles large files and heavier workloads with ease. Run Docker, virtual machines, and media server applications compatible with Plex—ideal for content creators, tech enthusiasts, and advanced home users managing 4K videos, RAW photos, personal media libraries, and multiple NAS apps.
- 【Up to 80TB for Growing Digital Libraries】 Supports up to 80TB of storage using two HDD bays and two M.2 NVMe SSD slots for family photos, movies, RAW photos, 4K videos, work files, and device backups. AI photo management supports recognition of people, objects, scenes, and locations, album organization, and duplicate photo detection. HDDs and SSDs are not included.
- 【AI-powered Home Surveillance】Turn DXP2800 into a centralized home surveillance hub by connecting compatible network cameras and storing recordings locally on your NAS. AI-powered features include Face Recognition, People Detection, and Pet Detection, helping advanced home users review important events more efficiently while managing home surveillance and personal data in one place.
- 【One data Center Across Your Devices】Keep files from desktops, laptops, phones, tablets, and other devices together instead of scattered across cloud accounts and external drives. Access, back up, organize, and share data across Windows, macOS, Android, iOS, web browsers, and compatible smart TVs—ideal for creators and advanced home users working across multiple devices.
Local storage does not mean storage without cost. You need a compatible enclosure and drives, and you take responsibility for selecting, configuring, and maintaining the hardware. Capacity can be adjusted using supported drives and, on supported systems, expansion units. Check compatibility for the particular enclosure before buying drives; a generic assumption that any drive or expansion will work is not a safe purchasing basis.
You want to combine local and cloud storage
You do not have to choose one destination for everything. QNAP documents mounting public cloud storage on a NAS and scheduling backups from the device. Synology documents sending NAS backups to its C2 service and other public cloud services. These vendor capabilities make a hybrid arrangement possible: keep a local store while retaining cloud storage or an off-site cloud backup.
Hybrid storage is useful when you want local access or capacity but also need a copy away from home. Decide which files go where and what each copy is meant to do. For example, a local NAS copy can serve as centralized home storage, while a cloud copy can provide a separate location for backup. The setup and available destinations differ by system and service, so confirm the supported workflow for your chosen products.
Rank #3
- 【Reliable External Storage System for Individuals and business】The 3.5 hard drive enclosure supports 2.5/3.5 inches HDD and SSD, max capacity up to 20TB for each hard drive, it's a ideal external hard drive enclosure for personal or enterprise using.Save space on your desktop or laptop.
- 【No heat】The sata enclosure built in Aluminum-Alloy materials and 2 inch Fan.Maximize the security of your data.Fan noise is around 40-50 decibels, not recommended if you are very sensitive to noise.
- 【Up to 5Gbps】This dual bay enclosure equips with advanced chips and USB 3.0 output interface.Transfer 1G files in 3-5 seconds with USB 3.0 Ports, which is 10 times faster than USB 2.0.
- 【Hot Swappable Convenience】The HDD enclosure supports hot swapping, allowing users to replace hard drives without powering off the device. This feature enhances convenience and efficiency in data transfer processes.
- 【Tool-Free Installation】Featuring a tool-free hard drive tray design, the external hard drive enclosure enables easy installation and removal of hard drives without requiring additional tools. Plug and play! No fuss, no muss!
You want a NAS with remote access
Some NAS systems offer remote access to files. Synology describes QuickConnect as a way to access a NAS from devices and browsers without setting up port forwarding and firewalls. That is a vendor’s description of its feature, not an independent assessment of security, performance, or suitability for every user. If remote access is a reason you are considering a NAS, check the exact system’s instructions and security options before relying on it.
Also compare the remote workflow with the one you already have in your cloud service. If your current service already gives you the access and sharing you need, a NAS remote-access feature may not add enough value to justify the extra device.
NAS versus cloud storage: compare the job, not just the location
| Decision | Cloud storage | Home NAS | What to check |
|---|---|---|---|
| Where files live | Provider infrastructure | A device on your home network, with remote access available on some systems | Whether you specifically need a local copy, remote access, or both |
| Setup and upkeep | Storage is service-managed | You acquire and manage the enclosure, drives, and configuration | Whether you want to take on hardware ownership and maintenance |
| Capacity and cost | Capacity and recurring charges depend on your plan | Requires upfront device and drive purchases; supported capacity can be adjusted | Your current plan, expected growth, compatible hardware, and full ownership costs |
| Access and sharing | Depends on your current service | Network access and file-sharing features depend on the NAS system | The actual devices, locations, and sharing workflows you use |
| Disaster recovery | Depends on your provider and account arrangements | A NAS kept at home remains exposed to loss of the home equipment | Whether important data has a separate off-site copy |
| Hybrid use | Your existing account remains available | Some NAS systems can mount cloud storage or send backups to cloud destinations | Whether your selected NAS supports the particular service and backup workflow |
What a NAS costs beyond the purchase price
A fair comparison is not “cloud subscription versus free local storage.” Synology contrasts home NAS ownership with recurring storage fees, but a NAS still involves an upfront enclosure and compatible drives. Your total ownership picture should also account for electricity, replacement or expansion hardware, your time configuring and maintaining the system, and any off-site backup service you choose to use.
Rank #4
- High Speed Data Transmission: The D2-320 hard drive enclosure (a DAS, NOT a NAS) adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With 2 hard drives in RAID 0, the read/write speed can reach up to 521MB/s (SATA III HDD 8TB x 2). With 2 SSD's in RAID 0, the read speed can reach 1075MB/s (SATA III 1TB SSD x 2)
- Multiple RAID Configurations: The D2-320 is a hardware RAID enclosure and it supports RAID 0, RAID 1, JBOD and SINGLE which can better satisfy various demands of users. In RAID 1, data will be in a mirror backup. When there is a damaged hard drive, you can directly replace the hard drive, and the data will be recovered automatically. This provides an absolute security for the data
- Super-Large Storage Capacity: The D2-320 USB storage enclosure can support up to two 3.5" and 2.5" SATA HDD, as well as 2.5" SATA SSD, with a maximum capacity of 22TB per drive, providing users with up to 44TB (22TB x 2) of storage space
- Intelligent Temperature Control: The D2-320 HDD enclosure has an intelligent temperature-controlled and low-noise fan that automatically adjusts its speed based on the temperature of the hard disk. This feature ensures that the hard disk operates at its best temperature and provides better heat dissipation
- Tool-Free Hard Drive Installation: The D2-320 external hard drive enclosure features a tool-free hard drive tray design that allows for easy installation and removal of hard drives without the need for any tools. Furthermore, the D2-320 incorporates a brand new Push-lock unique design from TerraMaster, which automatically locks the hard drive tray when you insert the hard drive, preventing the hard drive from falling out or disconnecting
Cloud plans also vary, so compare the actual plan you pay for with the equipment and services you would buy. The vendor material cited here does not establish a neutral break-even period or a comparable household total-cost figure. There is no defensible universal year at which a NAS becomes cheaper. Your result depends on the capacity you need, which compatible hardware you choose, how long you keep it, whether you expand or replace it, and whether you continue paying for off-site storage.
For a practical estimate, list the enclosure and drives you would need, likely replacement or expansion needs, electricity, your existing cloud-plan cost, and the cost of any separate cloud backup you plan to retain. Treat your time as part of the decision even though it may not appear on a receipt. The point is not to force a precise break-even calculation from incomplete figures; it is to avoid comparing a recurring service with hardware as if the hardware had no ongoing costs.
Why a NAS is not a substitute for off-site backup
A NAS creates a local copy, but keeping all equipment in one place leaves it exposed to a loss affecting that location. Fire, natural disaster, or theft of equipment from the home can take the NAS and other local copies at once. Synology’s backup guidance identifies off-site storage, including cloud storage, as a way to add protection against that kind of loss.
Best Value
- High-Speed Data Transmission: The D4-320 hard drive enclosure (a DAS, NOT a NAS) utilizes the USB 3.2 Gen2 protocol, achieving high-speed data transmission of up to 10Gbps. When equipped with four hard drives, the actual read/write speed can reach up to 1,016 MB/s (combined read/write 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 HDD up to 30TB, with a total capacity of 120TB, and is compatible with various hard drives, including 3.5-inch SATA hard drives, 2.5-inch SATA hard drives, and 2.5-inch SATA SSDs
- Plug-and-Play Compatibility: The D4-320 USB storage supports 4 individual disks (NO RAID function), and is plug-and-play, eliminating the need for drivers. 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 HDD enclosure supports hot swapping, allowing users to replace hard disks without powering off the device. This feature enhances convenience and efficiency in data transfer processes
- Tool-Free Hard Drive Management: Featuring a tool-free hard drive tray design, the D4-320 external HDD enclosure enables easy installation and removal of hard drives without requiring additional tools. Furthermore, the D4-320 incorporates TerraMaster's unique Push-lock design, automatically securing the hard drive tray upon insertion, preventing the hard drive from falling out or disconnecting
- Efficient Heat Dissipation and Quieter Operation: The D4-320 direct attached storage incorporates an intelligent temperature-controlled fan for optimal heat dissipation. Additionally, specialized sound-absorbing panels and vibration damping measures contribute to a quieter operation, with noise levels reduced by up to 50% compared to the previous generation. In standby mode, the noise level drops below 21 dB(A), creating a remarkably quiet user environment
For important files, think in terms of separate copies and locations rather than treating the NAS itself as a complete backup plan. If the NAS is your central store, decide where a separate off-site copy will live and how it will be kept current. Synology documents backing up a NAS to C2 and other public cloud services; QNAP describes scheduled backups and cloud mounting. The available destination and setup depend on the system and service.
A cloud account is not automatically a complete backup plan merely because it is remote. Check what your service stores and protects, and whether the files you care about are actually included. The key decision is whether you have an off-site copy for the data whose loss would matter—not whether you own a NAS.
Quick Recap
A simple decision process
- Write down what is not working. Identify a concrete need such as insufficient capacity, wanting a shared local store, or needing a different backup arrangement. If there is no unmet need, a NAS may add complexity without solving a problem.
- Check your current cloud plan. Confirm its capacity, access, sharing, and backup behavior against how you use it. Do not assume a NAS will improve a workflow that your current service already handles.
- Decide whether local storage matters. If you want a local central store, shortlist NAS systems that support your intended use. Check device and drive compatibility, and any expansion options you expect to need.
- Plan for a separate off-site copy. Decide whether your existing cloud account or another supported destination will hold one. Confirm that the NAS can perform the backup you intend rather than assuming that cloud mounting and backup are interchangeable features.
- Compare full ownership effort and cost. Include hardware, electricity, replacement or expansion, your setup and maintenance time, and off-site storage alongside the recurring cost of your current plan.
- Choose the least complicated option that meets the need. Keep cloud storage alone, add a NAS for local capacity, or use both if local access and off-site resilience are both priorities.
Common mistakes to avoid
- Buying a NAS because it seems inherently safer. Local storage has different risks; it does not protect against loss of equipment at the same location.
- Counting only the enclosure price. Drives, power, possible replacement or expansion, time, and off-site storage belong in the decision.
- Assuming all NAS systems support the same cloud features. Cloud mounting, backup destinations, and remote access are system-specific. Confirm the exact capability you need.
- Assuming remote access is automatically simple or secure. A vendor may provide a connection feature, but you still need to understand its configuration and security options.
- Looking for a universal break-even year. Costs depend on your plan, capacity, hardware choices, and ownership period; the available vendor information does not establish a general household threshold.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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