Use this product to convert SD card into 2.5inch 44pin IDE interface.There are two main control chips on this board, and there is an SD card socket on the back. | Compliance with SD specification Ver2.0, IDE/ATA-33 specification.Standard IDE interface interface: true-IDE mode, and supports DMA-33 transfer mode;The IDE interface is a 44-pin/2.0mm male connector. | The SD card can become an OS and application software that can directly start the device; Support DMA and ULTRA DMA mode, suitable for DOS, NT4, WINDOWS98SE, ME, 2000, XP, VISTA, MAC, Linux systems. | Installation method:First install the SD card into the product slot, and then connect the hard drive data cable to the interface of the notebook hard drive. It can be operated and used after the power-on test is normal. | Note: for soft routing, the size of the SD card should be within 1G. For example, if WIN98, WIN ME, WINXP, and the system are installed, the SD card capacity should be more than 2GB. If you require high speed, please choose a high-multiplier flash memory card.Maximum support 128G SD card.