sidpost
Head-Fier
Digital cables like USB can be subject to noise from nearby electronics. You also have to take into account the quality and durability of the connection between the wire and the connector attached to the end.
This is pretty easy to see when you plug in different USB cables to the same charger and same cellphone at the same charge level and measure how long it takes to charge it up. While not the same, it will demonstrate the differences in cable quality.
Regarding Monoprice cables, they make some good ones and some pretty low-end ones. Comparing a $2 cable against a $20 is really an apples to peanut comparison IMHO.
This is pretty easy to see when you plug in different USB cables to the same charger and same cellphone at the same charge level and measure how long it takes to charge it up. While not the same, it will demonstrate the differences in cable quality.
Regarding Monoprice cables, they make some good ones and some pretty low-end ones. Comparing a $2 cable against a $20 is really an apples to peanut comparison IMHO.