The SD to IDE Adapter converts SD/SDHC cards up to 128GB into a 40pin IDE interface, allowing legacy devices to access modern storage and helping extend system life. It provides a straightforward way to upgrade storage on older machines without drivers. Easy storage expansion for legacy systems: repurpose SD cards as IDE storage to aging drives and improve data access. Performance and reliability: 40pin IDE interface with multiword DMA and DMA host data transfer for stable, efficient data movement; no driver installation required. Power and compatibility: powered by 5V supply; normal operating voltage 5V ±0.25V; current under 200mA; compact form factor compatible with standard IDE connections. Target users and benefits: ideal for computer technicians, enthusiasts, and users upgrading storage on older devices; practical solution to extend hardware life. Use scenarios: 1) Rejuvenate an aging desktop by using an SD card as primary storage or boot medium; 2) Recover and archive data from legacy equipment to SDbased storage; 3) Quickly transfer OS images during repairs or diagnostics.