Welcome to our store! Special Design: This Raspberry Pi dual system dual memory card slot board is designed for gamers who frequently switch between two systems. For example, switch from Raspberry Pi OS to Ubuntu OS. Plug and Play: Enjoy plug-and-play system switching, eliminating the need to swap 2 different memory cards, simplifying your experience. Easy to Use: Simply flip the micro switch to change systems instead of swapping memory cards. Dual Memory Card Support: The memory storage expansion board can install dual memory cards, supporting 2 systems and fitting most memory card slots. Wide Application: This memory card protection module is suitable for Raspberry Pi 3B+3B 2B B+, offering practicality and convenience for your work. Item Type: Memory Card Protection Module Material: PCB Type: Voltage Regulator Applicable: Suitable for Raspberry Pi Dual Memory Card Converter Includes: 1 x Memory Card Protection Module