USB
The European Standardisation Bodies CEN, CENELEC and ETSI (independent of the OMTP/GSMA proposal) defined a common External Power Supply (EPS) for use with smartphones sold in the EU based on micro-USB. 14 of the world's largest mobile phone manufacturers signed the EU's common EPS Memorandum of Understanding (MoU). Apple, one of the original MoU signers, makes micro-USB adapters available - as permitted in the Common EPS MoU - for its iPhones equipped with Apple's proprietary 30-pin dock connector or (later) Lightning connector.
How many mobile phone manufacturers signed the EU's common EPS (MoU)?
14
14 of the world's largest mobile phone manufacturers signed the EU's common EPS Memorandum of Understanding (MoU).
MoU