Visiteurs depuis le 24/01/2019 : 16970 Connectés : 1 Record de connectés : 15 I think CAC stands for Common Access Card. I had one when i worked for the Defense Department. Usb Type-c Cac Reader For Macbook AirIt contains you photo a chip that stores information. It is used an an ordinary ID card and can be used as a special ID/Access card using the chip feature in the card. I had one connected to