Using this microSD card adapter is easy. First, find the SD card slot on your Raspberry Pi. Slide the adapter into that slot. Then, insert your microSD card into the adapter. To remove the microSD card, just push on the edge that sticks out. Remember, the microSD card and Raspberry Pi aren't included with the adapter. Before using it with a case, check if it fits well. Some cases may need modifications. This adapter is best for stand - alone boards, Pi Dish, or VESA mounts. It won't fit in a PiBow case and isn't suitable for an Adafruit Pi Box. Keep it clean and dry. If you have trouble with the push - push mechanism, don't force it. If you want a more versatile option, we have a 'short' adapter that works in Pi cases and MacBooks.