USB - Wikipedia, the free encyclopedia
Type Bus Production history Designer Compaq, DEC, IBM, Intel, Microsoft, NEC and Nortel Designed January 1996; 20 years ago (1996-01) Manufacturer ... 4: one power supply, two data, one ground (pre-3.0); 5: (pre-3.0 micro-USB) 9: (USB 3.0); 11: (powered ....