ISO 3166-2 geocode for Argentina. This is used as an international standard for shipping to Argentina. Each Argentinian province has its own code with the prefix AR.. For example, the code for the Province of Buenos Aires is ISO 3166-2:AR-B.
The USB 2.0 interface can be a limit due to signalling and command overhead as well as spacing between packets. I have a fast SSD connected by USB 2.0. The drive is much faster than the interface (by more a factor of 10). Read Speed maxes out around 33 MB/s and Write Speed at 17.5 MB/s. Write Speeds are almost 50% slower due to a verify-read after the write and the fact that the USB signal is half-duplex as another answer mentions.
Sequential read and write speeds, as youâd get from a big file transfer, are the most important general measurements. 1  Most of the USB 3.0 flash drives on Amazon hover around that 100 MB/s write speed mark, so cresting the 200 MB/s mark is damn fast as of mid-2013. All my old USB 2.0 flash drives had write speeds of about 10-15 MB/s. We considered our previous USB 3.0 pick from early 2012 to be fast with 85 MB/s write speeds. Most of the USB 3.0 flash drives youâll see on Amazon hover around that 100 MB/s write speed mark, so cresting the 200 MB/s mark is damn fast as of mid-2013.