The WD Ultrastar 4TB SATA Internal Hard Drive is an enterprise-grade hard disk designed for 24/7 operation in servers, NAS systems, and workstations. Built on Western Digital's proven HelioSeal helium-sealed platform, this 3.5-inch HDD delivers high capacity and reliability for business-critical storage workloads.

Key Specifications

• Capacity: 4TB
• Interface: SATA 6 Gb/s
• Form Factor: 3.5-inch
• Rotational Speed: 7200 RPM
• Cache: 256MB
• MTBF: 2.5 million hours
• Workload Rating: 550TB/year
• Operating Temperature: 5 to 60 degrees C
• Designed for 24/7 enterprise operation

Ideal For

• Enterprise servers and storage arrays
• NAS systems (Synology, QNAP, TrueNAS)
• Network video recorders and surveillance storage
• Cloud and data centre infrastructure
• Backup and archival systems

Why Choose Western Digital Ultrastar

• Industry-leading reliability with 2.5M hour MTBF
• Helium-sealed design for lower power consumption and reduced vibration
• Backed by full Australian manufacturer warranty
• Trusted by enterprise IT teams across data centres globally

Shipped from Tech Kingdom Australia with full WD manufacturer warranty. Free delivery on orders over $99. Same-business-day dispatch on metro orders before 2pm AEST. Need bulk pricing for a server build or NAS deployment? Request a quote or call 1300 797 866.