A very nice alternative to the brand that prevailed until now on the market for SD WiFi cards! The only small problem is the absence of instructions in French, but honestly even in English it is so basic that it's easy to set up. Download the app "transcend" on iPhone, iPad and android devices, configuration in seconds, you can upload one or multiple photos at once. Fast loading, effective writing speed. No disappointment on this map ... I was afraid of not being able to configure the unloading of my photos as near a Wifi modem or router, but no, it's great my 550D becomes a wifi point anywhere. Perfect for my use, I can do a photo shoot on the outside (to the customer, not the studio) and present on tablet directly after the result. Besides I suddenly hot annotate changes to be made in post production, the desired alterations or modifications ... Of course we would times faster loads but saw the first wireless cards, it may simply mean that a sacred progress was made! In short, a purchase that avoids lots of handling and significant time saving during photo sessions provided to anticipate some download time ...