The Hitachi Travelstar E5K100 (HTE541040G9AT00) is a 2.5-inch hard disk drive with 40GB capacity, designed for mobile and external storage applications. It operates at 5400 RPM with an 8MB cache and connects via ATA-100 interface, supporting sustained data transfer rates typical of parallel ATA drives from this generation. The compact form factor makes it suitable for external enclosures, portable storage solutions, and legacy laptop upgrades. This drive is compatible with systems supporting standard 2.5-inch PATA/IDE interfaces and is commonly used in archival storage, legacy system maintenance, and portable backup applications where capacity requirements are modest and power consumption must remain low.
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