The Lenovo DCG ThinkSystem 4 TB 7.2K SAS hard drive (model 7XB7A00043-RFB) is an enterprise-grade internal storage solution designed for reliable data center operations. This 4 TB capacity hard drive features a 7,200 RPM rotational speed and SAS (Serial Attached SCSI) interface technology, providing robust performance for demanding server environments. The hard drive is built for 24/7 operation with advanced error correction capabilities and thermal monitoring functions to ensure data integrity under continuous workloads. With enterprise-class reliability standards, this hard drive supports high-transaction applications, database management, and virtualization workloads where consistent performance and data protection are essential. The SAS interface offers dual-port capability for redundancy and improved availability in critical systems. With a 3.5-inch (8.9 cm) form factor and standard enterprise dimensions, the hard drive seamlessly integrates into compatible server enclosures and storage arrays. Designed for data center deployment, it features vibration resistance technology and optimized firmware for multi-drive configurations. The 7,200 RPM speed provides balanced performance for both sequential and random access patterns while maintaining efficient power consumption. This storage solution meets enterprise durability and continuous operation requirements, making it suitable for mission-critical applications where data accessibility and reliability are top priorities.