Name that old Sonder freehub!

Hi,

I have a set of old Sonder Love Mud Hobo 29"ers and although they are not the most flash wheels in the world they work well and seem pretty much indestructible. I would however love to upgrade the freehub to a 12 speed but I am having great difficulty in identifying the freehub or make of the hubs used by Sonder.

I have previously contacted Alpkit for advice and they were unable to give me any useful information as they don't sell them any more (this was a bit of a surprise as they have always been really helpful in the past) so I am now hoping that the great and good of the STW forum may be able to help. 

This photo of the freehub was actually grabbed from the STW review of these wheels (Thanks STW). Does anyone recognise it?

Thanks for any light that anyone can shed on this.