We have tested the adapter with a Class 10 128GB card and found it fully functional and compatible with the HERO3+. At 1080 x 60fps, 9 hours of video was recorded on the SD card in one continuous sequence. The GoPro detected when the card was almost full and stopped recording, as it should.
The 128GB card was also capable of executingSuper One Button Mode scripts, so the various CamDo products which require a script would operate with that card.
SD card Adapter allows the use of larger memory capacity class 10 SD cards such as 128GB, 256GB, and 512GB. It is likely that larger SD cards will also be compatible and we look forward to feedback from our customers.
The ribbon cable folds around to the back of the camera where the SD card can lie flat against the camera back inside the housing, allowing for a fully waterproof solution.
Will the adapter fit in the GoPro Standard Housing?
The only limit to inserting the adapter in the standard HERO3+ and HERO4 housing is the plastic reinforcement for the microSD insert. It is easy to trim that back slightly so that the microSD ribbon cable will fit. Simply peel back 1/8 inch of ribbon cable from the plastic and snip off a bit of plastic with diagonal cutters.
The ribbon can then be fed through the O-Ring slot and the SD card taped to the outside of the housing behind the camera.
Are there other WiFi adapter SD cards?
Yes. Some example WiFi SD cards available at Amazon are: