Qi2 is the updated wireless charging standard co-developed by Apple and WPC, adding magnetic alignment (based on MagSafe

Qi (Wireless Power Consortium) wireless charging uses inductive coupling at 110-205 kHz between transmitter and receiver

Apple Watch uses a proprietary magnetic inductive charging connector that aligns automatically with the back of the watc

Fitbit fitness trackers use proprietary magnetic charging clips or pogo-pin cables specific to each product generation.

Garmin GPS devices and fitness trackers use various proprietary multi-pin magnetic charging connectors. The spring-loade

Samsung Galaxy Watch and older Galaxy phones used a proprietary magnetic pogo-pin charging connector before transitionin

Microsoft Surface Pro keyboard connector is a 5-pin magnetic pogo-pin connector on the bottom edge of Surface Pro tablet

Apple Smart Connector is a 3-pin magnetic pogo-pin connector on the side of iPad Pro models providing power and data for

SDIO (Secure Digital Input/Output) uses the same physical SD card connector to interface peripheral devices such as Wi-F

miniSD was a smaller SD card format used in mobile phones from 2003-2008 before microSD made it obsolete. The 11-pin con