A:Answer You can use the camera without a sd card, and receive notifications, and use motion tracking about activity, but unless you subscribe to kasa care cloud storage or use the sd card you will not be able to see anything outside of real-time monitoring. I like that it has a sd card for storage rather than paying a monthly fee to kasa if I want to review footage that I might be missing. I also understand that there has been continuing problems with kasa monitoring and that is why kasa now offers sd card storage so that they can eventually end the kasa storage program rather than fix their on-going problems.