On Fri, Sep 5, 2014 at 4:36 PM, Matt <matt.mailinglists@xxxxxxxxx> wrote:
> Tried it and CentOS 6 did not seem to find it. Anyone know of a USB
> 3.0 card that does work with Centos 6.x?
I've used a variety of no-name cards with the NEC (now Renesas)
uPD72020x series host adapter chips, and they've all worked fine.
I'd steer clear of the "no additional power connection needed" cards;
in my experience they can't supply the maximum power the ports may
require (5V@900mA per port, i.e., 4.5W per port, 18W total for a
four-port card). Proper USB 3.0 cards have a disk drive power
connector for the power required. In principle it's possible for a
PCIe USB host adapter to have a switching regulator to provide
sufficient USB power from the +12V supply rail, but, I have yet to see
one that does.
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