I say use 4 X 1gb & hook into native Lan on three other servers, then use 3 X2 10 gb when Don't have any 1 gb for Gaming Server #1, with 1 gb thrown into Four or five when you want to crimp your style.Opps, also use flashlight to translate for two, 1 &10. I still think keep expensive opticals & Give Boss cheapo 1 gbif you can find cableing.
drashek

its the bottom right one since thers differently coloured heatsinks

Yeah, one is only gig-e, rest have the standard 10gig-e connectors.

As for site compatibility, every time I have found a bug on the page I flame (err, send off a message) saying what the issue is, last time it was the captcha not working in thermalferret 3 beta 3, all smooth sailing since that (beta 4 is working fine).

This is since the cards is one of supermicro's UIO slot cards

I thought it might have been bottom right board, as it looked like different connectors and may have 4 black isolating transformers indicating electrical rather than optical? 4 x 1Gb ?

The one with 3 heatsinks it's a 4 port Gigabit ethernet card not 10gigE

AOC-UG-i4
http://www.supermicro.com/products/accessories/addon/AOC-UG-I4.cfm

Third from the left.
Upside down.

i hereby claim three nothings, because i guess you meant the bottom left card, because of orientation (pcb in relation to slot cover) it would be "upside down" compared to the other cards....i guess the pcie wouldn't even touch the connector...anyways, pcie x8 is very nice for a nic ;)

p.s.: i've been reading the inq before it even existed and still it's crappy asp, crappy invalid html and some crappy ie-only crap. oh yeah and the captchas are most crappish of it all (don't work in opera e.g.) etc.etc.

AT adds: Someone with your typing skills shouldn't thorw tsones.

Is the card at the bottom left mounted upside down?

Is it the one on the far left that is mirror imaged compared to the others ???