Seagate Barracuda ST8000DM004 internal hard drive 8 TB 5400 RPM 256 MB 3.5" Serial ATA III

What it is

The Seagate Barracuda ST8000DM004 is a 3.5-inch internal hard drive offering 8 TB of storage capacity. It runs at 5400 RPM over a SATA III interface, with a 256 MB cache buffer and a sustained transfer rate of 220 MiB/s. It is a traditional spinning-platter HDD designed for desktop and workstation use.

Who it's for

This drive suits desktop PC builders, workstation users, and IT teams that need high-capacity bulk storage at a lower cost per terabyte than SSDs. It works well for media libraries, backups, archiving, and secondary storage roles where raw speed is less important than raw capacity.

Why it's good

• 8 TB in a standard 3.5" form factor — fits any full-size desktop or workstation bay.
• 220 MiB/s sustained transfer rate — respectable throughput for a 5400 RPM drive handling large sequential files.
• 256 MB cache — larger buffer helps smooth out read/write bursts during heavy file operations.
• Low idle power draw (4.5 W) — keeps running costs down in always-on workstations or NAS-adjacent desktop builds.
• Proven Seagate Barracuda lineage — a well-established drive family with a long track record in commercial environments.

When to choose it

Choose the ST8000DM004 when you need a lot of storage for the money and access speed is not the priority. It is a good fit for a secondary data drive, a media storage volume, or a backup destination. If your workload demands fast random read/write performance — databases, OS drives, or heavily accessed project files — an SSD is the better call. This drive earns its place as affordable, high-capacity bulk storage.

Specifications

Need this for a build or an upgrade project? Request a Quote or Talk to an AV Specialist to confirm compatibility and availability.