As the title states, I have two items for sale and both work just fine.
The Green box came out of a 92 E36 318i. It works perfectly fine and I tested it in my E30 M42. It is
unopened- 40 obo shipped 
The blue box works great and this is a pic of one identical to it, my other one, it just got a little degreaser on the case and took off the numbers but this is the exact same thing and works perfect. If it really makes a difference I will pull the other one out of the car. I opened it just seeing if it had a chip but it did not.
SOLD