The Western Digital Ultrastar DC HC310 4TB is a high-performance 3.5-inch enterprise-grade hard disk drive designed specifically for data center and server environments. Featuring a 6 Gb/s SATA interface, 7200 RPM spindle speed, and an ample 256 MB cache, this drive is engineered for continuous 24x7 operation with exceptional reliability. It utilizes Conventional Magnetic Recording (CMR) technology and a dual-stage microactuator for precise head positioning, enhancing data accuracy and integrity.

Optimized for demanding workloads with an enterprise-class workload rating of up to 550 TB/year, it supports a media cache architecture combined with a flash-based non-volatile cache that boosts write performance while safeguarding data during power interruptions. The drive's robust design ensures an MTBF of 2 million hours, making it ideal for cloud storage, big data platforms, NAS/DAS configurations, RAID arrays, industrial surveillance, and other mission-critical applications.

Physically, the drive measures 101.6 mm x 147 mm x 26.1 mm (width x depth x height) and weighs approximately 715 grams. With a power-efficient profile (~7W operating power) and a 5-year limited warranty, the Ultrastar DC HC310 series delivers a compelling balance of capacity, speed, reliability, and power efficiency for enterprise data storage solutions.

For detailed specifications and datasheet, visit the [Western Digital Ultrastar DC HC310 product page](https://www.westerndigital.com/products/internal-drives/data-center-drives/ultrastar-dc-hc310-hdd) or the [official datasheet PDF](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/data-center-drives/ultrastar-dc-hc300-series/data-sheet-ultrastar-dc-hc310.pdf).