what's chip memory of the rfid blocking card ?
RFID blocking cards do not have chips or memory in the traditional sense. Instead, they are designed to block or interfere with the radio frequency signals used by RFID devices to communicate with contactless payment cards and other types of RFID-enabled cards.
The RFID blocking technology used in these cards typically consists of a thin layer of metal or other conductive material that creates a Faraday cage around the card. This cage blocks or attenuates the radio frequency signals used by RFID devices, preventing them from being able to read or access the information stored on the card.
In other words, the memory or data storage capacity of an RFID blocking card is not measured in bytes or any other traditional memory unit, as the card is not intended to store data or information. Instead, the purpose of the card is to prevent unauthorized access to the information stored on other RFID-enabled cards, such as credit cards or ID cards.