Here is the best picture of it:
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(http://i.ebayimg.com/images/g/sHwAAOSwEeFU~2ey/s-l1600.jpg)
Definitely has mechanical switches.
Something else to note is that all boards of that model are MX blues. That is also the only model which uses mechanical switches.
Show Image
(http://i.imgur.com/w3F4Kxp.jpg)
Show Image
(http://i.imgur.com/996vglF.jpg)
Show Image
(http://i.imgur.com/53a7e68.jpg)
Ooooo it works!! Always wanted to see one of those network sniffers in action. Do you have any plans for that?