PCIe to USB to PCIe

[Wolff, Nick]

On 9/4/15, 1:01 PM, "owner-freebsd-hardware at freebsd.org on behalf of
Michael Fuckner" <owner-freebsd-hardware at freebsd.org on behalf of
michael at fuckner.net> wrote:

>Hi,
>
>I don't see any active components, so I believe it is still PCIe (just
>via an USB Connector)
>
>Regards,
>  Michael!
>

Hello,

Definitely agree looks like normal pcie extender. It's just using a usb
3.0 cable for the reason that it¹s a very cheap cable that meets the
needed specs for pcie or at least is close enough to work ok. Lots of
things will cheat this way for example some cheap switches will use hdmi
cables as stacking cables.

Probably also doing some cheating in the pinout also to get it to all work
over 8/9 pins provided by usb 3.0. (Hardwiring certain pins in each board
for example there probably hardwire PRSNT#1.)