Used Canon W-E1 Wi-Fi Adapter in 'Excellent' condition
Canon W-E1 1716C001, Wi-Fi Mobile Adapter for EOS 7D Mark II, EOS 5DS, EOS 5DS R Cameras - Walmart.com
Amazon.com : Canon EOS 7D Mark II DSLR Camera with 18-135mm f/3.5-5.6 is USM Lens & W-E1 Wi-Fi Adapter (9128B135) + 64GB Memory Card + Case + Card Reader + Flex Tripod +
Canon offers SD card-shaped Wi-Fi adapter, EOS 7D II bundle: Digital Photography Review