HP 574758-B21 is a 600GB 15000RPM SAS hard drive with 6GB/s serial interface, designed for enterprise server and storage arrays. The 3.5-inch form factor supports dual-port connectivity, enabling redundant paths and high-availability configurations in blade servers and SAN environments. Performance-oriented at 15K RPM, this drive suits transactional workloads, database servers, and I/O-intensive applications where throughput and low latency are critical. Compatible with HP ProLiant servers and EVA storage systems that support SAS 6GB/s drives; verify server or array specifications before purchase. Each unit is tested and guaranteed, available via quote.