A:Answer I don't know the specific of the Canon camcorder. But in general the following applies:
UHS-I is the first upgrade from the standard high-speed specification, offering transfer rates of up to 104 Mb/s. On the other hand, UHS-II takes it a step further with speeds of up to 312 Mb/s. The notable difference in UHS-II is the addition of a second row of pins, utilizing Low Voltage Differential Signaling (LVDS) technology to achieve higher transfer rates.
