I'm not sure. It came out of my Gateway Laptop computer which was purchased a little more than a year ago. I just upgraded my ram so i have these extra.
I will ship for free in an envelope at the winning bidders discretion. If you want the protective casing, I have to charge a shipping fee. If I ship in an envelope without the casing, I can't be certain of the product not being damaged. As for free shipping after a certain amount of credits, no, I am not going by credits on this item. :)