Quote:
Originally Posted by John F
Faster charging. Faster file transfer. Less confusing when inserting the USB-C connector. It is the new standard.
I think, I am no expert on USB stuff.  |
Something like an ereader might not be faster anything.
A tablet may or may not have faster charging. No faster if Android MTP.
The reason is it's the latest thing. Only some things need it, like a Video screen with only USB-C. Then the laptop needs not only USB-C, but the video out on it also. Not all laptops with USB-C have the video signal.
Also only the programmable chargers for things that need more than 5V use the USB-C power signalling. USB-A to micro-USB chargers can do 2A, but laptop ports rarely more than 1A, the DC voltage and/or resistors on the host charger USB-A tells the device what current is available, the device doesn't program voltage or current on USB-A.
Also USB-C ports on a gadget can be USB 1.1 (or slower), USB 2.0 or USB 3.0 speed.
You can't tell what a USB-C port on anything does without an analyser or the things specification. This was true for micro-USB too, looking at the port didn't tell if it charged at 100mA or 2A and what settings in the USB-A meant what current (because different makers used different schemes above 0.5A). Or if it could be a host instead of slave (USB2go), or if as slave: Serial, mass storage, photo or MTP, if a master if it supported MTP, mass Storage, HID, Serial or whatever.
USB-C optionally adds video, optionally adds more than 5V power and optionally adds serial port for power control and optionally adds swapping Host and Slave mode. In Slave mode an Android tablet with USB-C might be still MTP (slow) and same charge time as the prior model with micro-USB, and no video out in Master mode, if it even has a master mode at all.
I'd hardly expect a Libra2 with USB-C to be much different to micro-USB Libra. Just as many gadgets with Mini-USB were much like the next model with Micro USB.
I have things that are USB-B, USB-B 3.0 (extra pins, but works with USB-B plug), mini-USB, micro-USB, Micro-USB 3.0 (extra pins) and USB-C. All work with the USB-A 2.0 Host ports on laptop. The 7200 RPM SATA HDD in a USB case using USB-B with a separate power cable is really fast. Anything with MTP is slug slow.
A brand new Lenovo Yoga ARM tablet has USB-A to USB-C cable and a USA-A charger just like a micro-USB Lenovo tablet charger 3 years ago. Same 2A & 5V.