The WD400JB-00JJC0 is a Western Digital Caviar SE 40GB 3.5-inch internal hard drive designed for desktop and low-end server environments requiring moderate storage capacity. It features a 7200 RPM spindle speed paired with an 8MB cache buffer and ATA-100 (Ultra ATA/100) interface for sustained throughput up to 100 MB/s. This drive is compatible with legacy systems and older workstations that use standard parallel ATA connections, making it suitable for archival, backup, or as secondary storage in systems where SATA connectivity is unavailable. The 40GB capacity serves well in cost-constrained deployments or as a boot drive in minimal-footprint configurations.
This refurbished unit has been tested and guaranteed; available via quote from G5 Network Group.
