Date: Tue, 8 Sep 2015 23:18:40 +0000 From: "Wolff, Nick" <nwolff@oar.net> To: Michael Fuckner <michael@fuckner.net>, Dieter BSD <dieterbsd@gmail.com>, "freebsd-hardware@freebsd.org" <freebsd-hardware@freebsd.org>, "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org> Subject: Re: PCIe to USB to PCIe Message-ID: <D214E40E.26398%wolff.261@osu.edu> In-Reply-To: <55E9CE6A.2040306@fuckner.net> References: <CAA3ZYrBM_FtCGy1MG6LXY1tA-vNsx=xjYE3EpSQzXouEPxrBfA@mail.gmail.com> <55E9CE6A.2040306@fuckner.net>
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On 9/4/15, 1:01 PM, "owner-freebsd-hardware@freebsd.org on behalf of Michael Fuckner" <owner-freebsd-hardware@freebsd.org on behalf of michael@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 it=B9s 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.)
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