most people dont know what they are missing with the expansion board and no acrylic case.
fyi put a piece of foam under the acrylic case and over the 8 pins on the right side. These pins stick up high enough that they can short out against wires or metal on the work bench… dont ask me how i know
go ahead and get them the price is going up all the time, im sure you can get a run to work
is the IO Expander Sold Out
how about this product to be modified?
I would love to buy some of these, but the link no longer works?
Hi there,
They do Work, I think they were going to Revise it, so it may be worth the wait if they improve on it. But it does work. 
also there are others albeit LARGER 
for sale
HTH
GL 
PJ
Ah, I see, interesting they revise so soon after release! Looks like you can’t buy them anymore (or at least that I can find). What else is for sale?
Thanks, Sam
Hi there,
Yea, just google “port expander arduino”
You get MORE than enough choices…
HTH
GL PJ