10 Best Nas Devices 2025 in the United States

The QNAP TVS-h1688X-W1250-32G is a high-performance NAS designed for users needing large storage and fast data access, such as media professionals or small businesses. It offers a total of 16 bays (12 for 3.5-inch drives and 4 for 2.5-inch drives), providing plenty of space to build a large storage pool. The Intel Xeon W-1250 6-core processor with 32GB ECC RAM (expandable up to 128GB) ensures smooth multitasking and reliability, especially useful for heavy workloads or virtualization.

Two 10GbE ports and four 2.5GbE ports offer excellent network connectivity, allowing fast data transfers and multiple users to access the NAS without slowdown. The device supports RAID configurations, which help protect data against drive failures. It also includes HDMI output and multiple USB ports for added versatility. Running QNAP's QuTS hero operating system, it offers advanced features like snapshots and data integrity checks.

The NAS is quite large and heavy, so it may require dedicated space and sufficient cooling. It comes diskless, so you'll need to buy hard drives separately. This NAS is well-suited for users who prioritize speed, capacity, and advanced features, but it might be more than needed for casual home use.

The BUFFALO TeraStation 5820DN is a strong choice for businesses needing reliable, large-scale data storage. It comes with 8 bays and 4 pre-installed 20TB hard drives, offering a total of 80TB raw space. With RAID 5 configured by default, you get around 54TB usable storage that balances speed and protection, and you can switch to RAID 6 for even better redundancy or RAID 0 for maximum capacity without protection. The device includes built-in 256-bit encryption and two-factor authentication, making it a secure option for sensitive data. It supports snapshot backups that help you recover files quickly without interrupting work, which is handy against ransomware threats.

Connectivity is excellent with a native 10GbE port, meaning fast data transfers without needing extra hardware upgrades. The NAS is compatible with Windows, Mac, and Linux, and integrates with popular cloud services like Dropbox and Microsoft Azure for added backup flexibility. It runs on a stable, business-focused system designed to handle heavy workloads smoothly. The device is relatively large and weighs nearly 24 pounds, so it’s best suited for a fixed office setup rather than portable use.

This NAS is ideal for medium to large businesses needing secure, high-capacity storage with fast network access and robust backup options. It includes a solid 3-year warranty with optional extensions and 24/7 support, providing added peace of mind.

The Asustor Lockerstor 12RD is a powerful NAS device designed for users needing substantial storage and high performance, such as small to medium businesses or tech enthusiasts managing large amounts of data. It supports up to 12 drive bays, giving plenty of room for expanding storage, which is great if you expect to grow your data needs. The Intel Atom C3538 quad-core CPU paired with 8GB of DDR4 RAM (expandable up to 128GB) provides solid processing power for multitasking and running virtual machines or Docker apps, making it suitable for more advanced business tasks.

Connectivity is strong with two 2.5GbE ports and two 1GbE ports, which can be combined for faster network speeds up to 5 Gbps, and there's room to add a 10GbE card for even faster connections. It supports multiple RAID configurations and VMware, Citrix, and Hyper-V virtualization, adding to its versatility for business environments. Features like ACL and Active Directory support improve security and user management, which are important in professional settings.

On the downside, this is a bulky 2U rackmount device weighing over 25 pounds, so it's mainly suited for server rooms rather than casual home use. It's also diskless, so you must purchase hard drives separately, and its price and complexity may be overkill for average home users or those with simpler storage needs. The Asustor Lockerstor 12RD stands out as a robust, expandable NAS solution ideal for business users who need reliable performance, high capacity, and advanced networking features.