$55
I ordered this on this website about 2 months ago:
However, the shipping process was too slow and I only received the product recently. By the time I received it, I have obtained something similar.
I did not open the package so the item is completely new! For people who want to buy, you can either pick it up from Stanford campus or I can ship it to you (I will cover the shipping cost).
Please do not message this poster about other commercial services.