2 In 1 Dual TF Card Adapter Shield This is a 2 in 1 micro SD/TF card switcher for the Pi development board enable you MCU to run two two different systems easily. On-board micro slide switch to interchange the two different system instead of changing the different system micro TF card, simplify your operation and save your time. It’s really easy to use. It’s based open source, with access to free software and downloads to help you with your project. Note: Please power off when changing the system, then continue to operate the switch, if not under the power off status, it will damage the system. Description: 100% Brand New & High Quality Warranty: 24 months Brand Name:OKYSTAR,ODM&OEM Delivery time: Within 1~5 days after payment Transport way: DHL/FedEx/UPS/TNT Or EMS Payment term: TT/Westernunion/Moneygram/Alipay/Paypal Package:Standard Anti-static Poly Bag, Retail Box or Customized packaging Application:DIY electronic project,STEM education,geeks,engineers,starters,etc. Package Include: 1 x TF Card Adapter Shield