Hard Disk       Product Picture         Product Information   SKU # HDWD4000YR     Manufacturer Western Digital     Features  - RAID-specific time-limited error recovery improves compatibility with RAID adapters, and prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop hard drives. 1 million hours MTBF meets enterprise-class reliability standards, backed by an industry-leading five-year warranty. 16 MB cache provides a higher percentage of cache hits and significantly faster time to data than industry-standard 2 MB versions  - 1 million hours MTBF meets enterprise-class reliability standards, backed by an industry-leading five-year warranty.  - 16 MB cache provides a higher percentage of cache hits and significantly faster time to data than industry-standard 2 MB versions     Specifications    - Capacity 400GB  - Interface SATA  - Data Transfer 150 MB/sec  - Access Time 8.9ms  - RPM 7200  - Buffer 16MB     More Information