Cloud NAS is useful when you need network file sharing alongside cloud capacity, off-site copies, or access to files across locations. The term can describe a physical NAS connected to cloud storage, or a managed cloud file service that takes over some jobs traditionally handled by a NAS. Which one fits depends on whether you need local access, more capacity, or disaster recovery.
What “cloud NAS” means
A traditional network-attached storage (NAS) device stores files and shares them with computers and other devices on a network. Common uses include shared file storage, active archives, backup and disaster-recovery workflows, media streaming, and frequently accessed images or video, as described in Amazon Web Services’ NAS overview.
“Cloud NAS” is used for two different arrangements. In a hybrid setup, a physical NAS connects to remote cloud storage. A gateway can make cloud data available to applications through familiar file or block-storage protocols, while a local cache can keep frequently used files close at hand. Alternatively, managed cloud file storage can replace some or all of the storage role of a physical NAS; AWS says organizations can augment or replace physical NAS with cloud-based file storage.
These approaches are not interchangeable. With a gateway, you still operate local NAS hardware and configure its connection to cloud storage. With managed cloud storage, the provider operates the storage service, though you still manage access, settings, and costs.
#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.
What cloud NAS is good for
Sharing files across a network or locations
A NAS is built to make files available to multiple devices. In a hybrid arrangement, branch offices can use NAS systems to access shared cloud storage through standard protocols, depending on the product and configuration. This can support existing file-sharing workflows without requiring every application or user to interact with a cloud service in the same way.
Keeping frequently used cloud files responsive
Some gateways cache recently or frequently accessed cloud files on the local NAS. That can reduce repeated downloads and latency for files already in the cache. QNAP describes this as enabling “near-LAN speeds,” but that is a vendor product claim, not an independently verified performance guarantee. Files that are not cached still depend on the network connection and the cloud service.
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.
Adding capacity while keeping local workflows
A gateway can present remote storage through familiar file or block protocols, which may help when applications expect a local-style storage interface. QNAP’s Cloud Storage Gateway documentation describes support for protocols including SMB, NFS, FTP, AFP, WebDAV, and iSCSI, depending on the solution. Check the specific product’s protocol support and compatibility before building around it.
Creating an off-site copy
Cloud storage can keep a copy away from the location of the NAS. That matters because a local copy alone may be lost to a fire, natural disaster, or theft affecting the site. Synology’s guidance on data backup describes cloud storage as one option for off-site protection.
Rank #3
- 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.
Synchronizing files between a NAS and cloud accounts
Synchronization can keep files aligned between a NAS and a public cloud service. Synology Cloud Sync supports one-way or two-way synchronization and offers encryption and compression options. Choose the direction and behavior carefully: synchronization is designed to propagate changes, not necessarily to preserve a recoverable history of them.
When cloud NAS may not be the right fit
- You only need straightforward personal file storage and sharing. A cloud drive may be simpler than buying and configuring a NAS. Managed cloud file storage can also replace some physical NAS duties.
- Your connection is unreliable or slow. Remote data accessed through a cloud mount or gateway depends on network connectivity. Caching may help with frequently used files, but it does not make uncached files available independently of the connection.
- You expect one NAS to protect itself. A NAS in one location does not protect against a site-wide event. Keep an off-site copy and make sure you can restore it.
- You treat sync as a full backup. Two-way synchronization can carry accidental or malicious changes to the other location. For recovery, use a backup workflow with versioning or recovery points suited to the risks you need to address.
- You assume cloud storage always costs less. The total depends on capacity, transfer, retrieval, retention, provider, plan, and usage pattern. Compare the costs for your actual workload rather than relying on a general claim that cloud is cheaper.
Choose the setup by the job you need done
| Need | Local NAS | NAS plus cloud gateway or sync | Managed cloud file storage |
|---|---|---|---|
| Local network file sharing | Core use | Core use plus cloud connection | Depends on the service and network |
| Local access to frequently used data | Provided by local storage | A local cache may provide it for cached data | Depends on the connection and service features |
| Capacity managed by a cloud provider | No; capacity is owned locally | Cloud capacity complements local storage | Yes; the provider operates the storage service |
| Off-site protection | Requires another destination | Possible, but requires a real backup job | Possible, subject to retention and recovery design |
| Administration | Maintain the NAS and its storage | Maintain the NAS and configure cloud integration | Less storage hardware to operate; access, cost, and service settings still need management |
This is a conceptual comparison, not a performance benchmark. Behavior varies by service, product, software version, and configuration.
Rank #4
- Entry-level NAS Home Storage: The UGREEN NAS DH4300 Plus is an entry-level 4-bay NAS that's ideal for home media and vast private storage you can access from anywhere and also supports Docker but not virtual machines. You can record, store, share happy moment with your families and friends, which is intuitive for users moving from cloud storage, or external drives to create your own private cloud, access files from any device.
- Smart Photo Backup & AI Album: Automatically back up photos and videos from your phone in real time and keep growing family memories organized with AI-powered photo albums. Semantic search, custom learning, and recognition of people, objects, pets, and similar photos help you quickly find the moments you want. Duplicate photo removal also helps keep your library organized—ideal for families and users with large photo collections.
- User-Friendly App & Easy Setup: Connect quickly via NFC, set up simply and share files fast on Windows, macOS, Android, iOS, web browsers, and smart TVs. You can access data remotely from any of your mixed devices. What's more, UGREEN NAS enclosure comes with beginner-friendly user manual and video instructions to ensure you can easily take full advantage of its features.
- More Cost-effective Storage Solution: 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 $629.99 for a NAS, while for cloud storage, you need to pay $719.88 per year, $1,439.76 for 2 years, $2,159.64 for 3 years, $7,198.80 for 10 years. You will save $6,568.81 over 10 years with UGREEN NAS! *NAS cost based on DH4300 Plus + 12TB HDD; cloud cost based on 12TB plan (e.g. $59.99/month).
- Your Data, You Control：No third-party clouds, no hidden access, UGREEN NAS provides a more secure and private data storage solution. It stores data locally on your private hard drives and does automatic backups. Thus, you can keep full control over it. The advanced encryption is TRUSTe certified in the United States and is awarded the first (and only) ETSI EN 303 645 certification mark for NAS products by TÜV SÜD Group.
How to decide what you need
- Name the job. Decide whether the main need is local file sharing, access from multiple locations, extra capacity, or an off-site backup. These needs can call for different products.
- Choose the storage arrangement. Use a local NAS when local network storage is important. Consider a gateway when you need cloud capacity but want applications to keep using a familiar storage interface. Consider managed cloud file storage when you want the provider to operate the storage service instead of running the storage hardware yourself.
- Plan access and caching. If users need local responsiveness, identify which files must be available locally and whether the chosen gateway caches them. Confirm what happens when an uncached file is requested or the internet connection is unavailable.
- Design backup separately from sync. Keep an off-site copy, select a backup workflow with versioning or recovery points, and test that files can be restored. RAID or bidirectional sync alone does not provide the same recovery history.
- Compare the full cost for your usage. Include storage capacity, data transfer, retrieval, and retention, using current prices for the provider, plan, and geography you expect to use.
What to verify before choosing a product
- Which file or block protocols it supports, and whether those match your applications.
- How local caching works, including what is cached and how much storage it uses.
- What users can access when the connection is unavailable.
- Whether synchronization is one-way or two-way, and what happens when files are deleted or changed.
- What backup versions and retention options are available, and how restoration works.
- Current compatibility, service limits, and plan terms for your product and region.
Product documentation describes intended capabilities, not independent comparative performance. For example, QNAP distinguishes its cloud mount from gateway functionality: a cloud mount does not provide protocol conversion or SSD caching, and its speed depends on the internet connection. Check the exact product documentation for the arrangement you plan to use: QNAP Cloud Storage Gateway, AWS cloud storage overview, Synology data backup, and Synology Cloud Sync.
Quick Recap
Best Value
- Secure private cloud - Enjoy 100% data ownership and multi-platform access from anywhere
- Easy sharing and syncing - Safely access and share files and media from anywhere, and keep clients, colleagues and collaborators on the same page
- Automated Backup Protection - Set-and-forget backups for Macs, PCs and mobile devices to multiple destinations including cloud and external drives
- Home Security System - Record and monitor your property 24/7 with support for multiple IP cameras and remote viewing
- 2-Year Warranty - Reliable hardware backed by Synology's expert customer support team and ongoing software updates
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.
Free tools Windows power users keep installed
One-click scans. No signup required.
