The good thing is, the card works with the EOS 100d quite well. What many users perceive as a wireless termination, is probably by design. The card transfers all images, while images are available, continuously. However, the WLAN deactivated after the last picture immediately. If you shoot now, after a short pause, another image, the connection is active again. But that always takes something ..... The annoying then already ... So active, inactive, active, etc. etc.