Internal Hard Drive Western Digital 12TB 3.5 inch Serial ATA III WD120EAGZ

Western Digital 12TB 3.5" Serial ATA III WD120EAGZ is a 3.5-inch internal hard drive designed for desktop computers and office systems. With 12 TB capacity, 7200 RPM rotational speed and a 512 MB buffer, this WD Blue drive offers dependable storage and good sustained performance for everyday computing and storage-heavy tasks via the SATA III interface.

Advantages

The drive combines a large 12 TB capacity with a 7200 RPM spindle speed and a 512 MB cache to support fast sequential transfers and responsive access for typical desktop workloads. Its 3.5-inch form factor and SATA III interface make it compatible with most desktop PC bays and motherboards. The WD Blue series is positioned for reliable office and web application use, providing a balance of capacity and performance for primary system drives or additional bulk storage.

Suitable for

• Primary desktop storage for home and office PCs
• Mass storage for media libraries, backups and archives
• Office applications and web-based workloads

Key specifications

• Model: WD120EAGZ
• Capacity: 12,000 GB (12 TB)
• Form factor: 3.5"
• Interface: Serial ATA III (SATA III)
• Rotational speed: 7200 RPM
• Cache (buffer): 512 MB
• Weight: 0.75 kg

How to use

Install the drive into a free 3.5-inch bay in your desktop PC or compatible enclosure, connect to the motherboard using a SATA III data cable and to power via the PSU SATA power connector. Configure the drive in the system BIOS/UEFI if required, then format and partition the disk within your operating system before use. For best performance, connect to a SATA III port and ensure proper mounting to reduce vibration.

Recommendations

Use this WD Blue 12TB drive as a primary desktop drive or as bulk storage for large media collections and backups. Maintain regular backups, ensure adequate cooling and mount securely to maximize drive longevity and consistent performance.