On 2015-10-13 19:54, Anton Aylward wrote:
On 10/13/2015 01:42 PM, Greg Freemyer wrote:
I think the real reason is simply money. They put better parts in SSD than in thumb drives. Even the USB3 Sandisk thumb drives I buy are "slow".
No, there is some "technology" behind it.
- SATA and eSATA are 'star wired' whereas SB are bus wired.
In theory, yes. But, one, it is irrelevant when you are testing with a single device on the machine. And two, most modern computers do not implement an USB hub, but actually separate interfaces on each socket. Easy to test: read from one flash device on one use port, write to an external rotating disk on another port. It does not go at half the usb rated speed, but at near the rated speed.
- SATA and eSTAT are autonomous devices whereas USB are CPU controlled.
Depends on what controller you have. There is a cheaper one that is as you say, and another, more expensive one, which is autonomous. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)