Type: TF Card AdapterCompatible With: For 3B+, 3B, 2BFeatureInstall TF card, support 2 system for aboard.Suitable for mostly case which has a TF card slot.Double -TF card slot board for a system, design for players who need frequent task-switching between two systems. for example, change Raspbain OS to Ubuntu OS.Plug and play with a -slide switch to switching the system instead of changing 2 different -TF card, simplify your operationCompatible with 3 Model B / 2B / Pi Zero / Zero W.Note: Please turn off your , then change the system, switch when on will damage your system in the TF Card. and High QualityMaterial: PC+MetalColor as shownPackage Contents:1 x TF Card AdapterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store