Introduction: SanDisk was founded by Eli Harari in 1988. The company is located in Milpitas, California and has offices and production facilities around the world, such as the European headquarters in Dublin, Ireland. SanDisk is the world's largest supplier of flash data storage products and plays an important role in developing many industry standards for flash technology. SanDisk's main business is to provide high-performance flash storage solutions, and the products produced by the company are widely used in computers, consumer electronics, and communication products. SanDisk's first flash product was launched in 1991, which used a 4Mbit flash chip jointly developed by SanDisk and ATT Bell Laboratories. The company's main products include: CF card, SD card, TF card, USB flash drive, Memory Stick, card reader, SSD solid state drive mp3。 SanDisk is a leading developer of flash memory cards for data storage and one of the first members of the Personal Computer Memory Card International Association (PCMCIA). Currently, SanDisk holds over 100 US patents and has signed cross licensing agreements with Intel, Sharp, Hitachi, Samsung, Toshiba, and SiliconStorage Technology regarding flash storage technology. In 1999, SanDisk released a product using 256Mbit flash technology. In May 2016, Western Digital officially announced a $16 billion acquisition of SanDisk.