Bundle with 10 smart cards.

GSM Punch smart cards are a type of SIM card that are used in mobile devices or in smaller card readers to enable the use of different services. They are called “punch” cards because they have a small hole in the corner that can be used to punch out the card to fit into a different size SIM card slot. GSM stands for Global System for Mobile Communications, which is the most widely used standard for mobile telecommunications. These cards typically contain a unique identification number and other information that allows them to connect to a mobile network and provide services such as voice and data connectivity.