WPK-MiniMicroSIMR is a waterproof Micro SIM to Mini SIMR extension cable kit for outdoor NB-IoT, 4G/LTE, or 5G applications. It has a high IP66 rating, which means that it is dust-tight and protected against water jets from any direction. This makes it ideal for use in harsh environments. WPK-MiniMicroSIMR extension cable has a push-push type of Micro SIM slot, which makes it easy to install and remove the SIM card. This is useful for applications where you need to be able to quickly and easily change the SIM card, such as for roaming purposes.