10 Best Nas Devices 2025 in the United States

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 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 Synology DS1522+ 5-Bay DiskStation NAS is a robust and feature-rich network attached storage solution. With a total storage capacity of 20TB, spread across five bays with 4TB WD Red Plus drives, it offers ample space for storing large amounts of data. The AMD Ryzen R1600 processor combined with 8GB of RAM ensures efficient performance, capable of handling demanding workloads and supporting multiple concurrent users. This makes it particularly suitable for small to medium-sized businesses or advanced home users who require reliable and fast data access and management.

The device also supports various RAID configurations, which adds an extra layer of data redundancy and protection, crucial for safeguarding important information. Connectivity is well-covered with four RJ-45 1GbE LAN ports, allowing for fast and secure network integration. The software suite provided by Synology is comprehensive, offering features like data synchronization, remote access, and backup solutions, which can be easily managed via an intuitive interface.

However, one potential drawback is the power consumption and the physical size, which might be a consideration for users with limited space or those concerned about high energy usage. Additionally, the device's weight of nearly 17 pounds could make it less portable if relocation is required. Despite these minor concerns, the Synology DS1522+ is highly rated by users for its reliability and performance, making it a strong contender in the NAS market.