Thanks for contacting us. I am sorry for the delay in response. There are some situations where we will warranty a product purchased from an authorized reseller on eBay. If you have the seller information please contact us directly, so we can verify if the seller would be covered or not. Our contact info can be found in my signature. In most cases it would need to be a big name brand reseller who just has a site on eBay (for example Crucial has a US eBay store). In order to honor the warranty we would need a proof of purchase of the item in order to show when it was purchased and who sold it.