Model: WS5220DN04W5
from $999.99
Storage: 2 x 2TB
2 configurations available
The Buffalo TeraStation WS5020 IoT 4TB 2-Bay NAS Server is a robust network-attached storage solution designed for reliable data management in professional environments. Pre-configured with two 2TB hot-swappable SATA III HDDs in a RAID 1 array for immediate data redundancy, it offers a total storage capacity of 4TB. Powered by an Intel Atom C3338 Dual-Core processor and 8GB of ECC DDR4 memory, this server runs on Microsoft Windows Server IoT 2025 for Storage Workgroup Edition, providing a familiar and secure platform for file sharing, backup, and data synchronization across various Windows and macOS systems. Its connectivity options include a 10GbE port, two Gigabit Ethernet ports with link aggregation support, and two USB-A 3.0 ports, making it suitable for businesses requiring secure, high-performance data storage and accessibility.
Buy based on the software ecosystem (e.g. Available from $999.99.
NAS (Network Attached Storage) devices run 24/7, making power consumption a steady, though low, cost. The real ongoing expense is replacing hard drives as they fail or filling empty bays to expand storage.
Common Failure Modes
Hard drive failure is the most common issue, which is why NAS uses RAID redundancy to prevent data loss. Fan failures and power brick deaths are the primary hardware issues for the enclosure itself.
Buy based on the software ecosystem (e.g., Synology DSM) and the number of drive bays you need for redundancy and future expansion. CPU power matters greatly if you plan to run media servers like Plex.
The NAS enclosure itself can last a decade. However, the hard drives inside are consumable and typically need replacing every few years depending on workload.
The Buffalo TeraStation WS5020 IoT 4TB 2-Bay NAS Server (2 x 2TB) is available at bhphoto, starting at $999.99.
NAS (Network Attached Storage) devices run 24/7, making power consumption a steady, though low, cost. The real ongoing expense is replacing hard drives as they fail or filling empty bays to expand storage.
See all NAS Devices
Compare the full selection with specs and pricing.
Links may earn Covala Shopping a commission at no extra cost to you. Prices last verified at time of page load. As an Amazon Associate, Covala Shopping earns from qualifying purchases.