Improved electrical characteristics are key factors to the ZX series. Contact resistance has been lowered from the Mini-USB’s 50mΩ max down to 30mΩ max. Even after a 10,000 cycle test, the ZX series contact resistance only has a 10mΩ maximum rise. Additionally, current capacities have also been improved. Current capacity is 1A if just sending signals through contacts 1-5. However, by sending power and signals through the ZX series, current capacity is increased to 1.8A for pins 1 and 5 with a signal current capacity of 0.5A for pins 2, 3 and 4.