longer cord to charge the phone with?

[ichibans13]

The length of the cable will not affect the current running through it, when its just a few feet of difference. It is what the cable is capable of carrying that matters.

You wouldnt lose too much to notice with just a few feet of extension. Now if you were trying to run a miliamp of current across 100 miles of cable, then you probably would never get your phone charged.

For example, cables that are considered "critical length" are cables that carry RF (radio frequency), and its due to the amount of loss across the length of the cable. That's more "gee-whiz" information than anything really.

[scudder]

never heard that there were 1.2 and 2.0 cables, surely a cable is a cable, someone explain what the diference would possibly be please as I would think any copper wire was able to support 2.0 and would not be rated?

[ichibans13]

USB 2.0 supports 480Mbit/s where as 1.0 is 1.5Mbit/s at low speed and 12Mbit/s at high speed.

I've never heard of a 1.2 USB. There was a 1.1 but that was released shortly after the 1.0 and there wasnt much of a difference.

[scudder]

Thanks ichi, regardless of my typo and speeds of USB, I was enquiring about cables as it was implied earlier in the thread that the cable would make a difference and I was unaware that the cable type would make any odds.

[ichibans13]

Oh, well no problem.

I could only assume that since the 2.0 supports higher data transfer, maybe then it allows the iPhone to charge at a faster rate? I know that length will not cause any issues.