Otg Pen Drive MU-838Product DescriptionAdvantage:1. Professional ... 2000, Windows Vista, Windows 7 or aboveAccessoriesManual ,cd drive, USB cable, lanyard, keyring (optional)Data retention10 years Product ... sides. 2. Pre-loading files into the USB flash drive and autorun available. 3. Custom Shape, Color ... 6. What is the brand of your USB chip ?We usually use Toshiba, Samsung, Hynix ,Micron, Intel chip ...