Canon has introduced a Wi-Fi adapter shaped remarkably like an SD card, designed to bring wireless connectivity to dual card slot cameras like the EOS 7D II and 5DS/R. The W-E1 adapter will be sold bundled with the EOS 7D II as well as separately, and will work with previously purchased 7D II and 5DS/R models once a firmware updated is applied.
Though it looks like an SD card, the W-E1 doesn't include any storage, so the camera's available CF card slot will need to be used. When used with the EOS 7D II the card can transfer stills and MP4 video files; with the EOS 5DS/R only still images can be transferred.
The W-E1 will be available in early September for $50. A new Canon EOS 7D II kit with the W-E1 and the EF-S 18-135mm F3.5-5.6 IS USM lens will go on sale in October for $2,449; a body-only kit with the adapter will cost $1,849. Firmware to enable use of the card with previously purchased 7D II units will be available in early September, followed by one for 5DS/R owners will in November.