Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Who provides the "3 year warranty"?  According to HGST (I called them), there is NO warranty on drives removed from the Touro external drive.
Document: He said there is no warranty since they were removed from an external case. I thought the sealed bag with the desiccant meant it was new. He said it is easy to get the equipment to seal up a hard drive in a bag. Amazons web site shows these as new with a 3 year warranty...that is not the case. HGST Deskstar 3.5-Inch 4TB 7200 RPM SATA III 6Gbps 64MB Cache Internal Hard Drive (0F14681) (HDS724040ALE640)They are going back.
I purchased 2 of these drives at Microcenter and after reading another review here, I decided to call HGST and find out why the warranty was only showing 2 years instead of 3. Turns out, these drives were also removed from an external enclosure and repackaged. They are new and have never been used though, as the SMART data showed 0 power on hours. I have no issue with the drives themselves and they perform as expected. Just be careful and verify the drive has warranty.
I bought two of these drives on 10/21/13. After reading some reviews that Oceanside had sold drives that had no warranty (because they were taken from external drives which voided the warranty), I checked my drives' serial numbers on the HGST website ([...]). While my drive did have a warranty, it was NOT the three year warranty that was advertised. The website said my warranty expired in Oct 2015, thus giving me a two year warranty instead of three.
this is a drive pulled out of an external enclosure with no warranty should have spent the extra $5 at newegg and i would i have gotten a 3 year warranty. I blame amazon for this they should not let sellers tag something as OEM when it is a resale product that was modified and than sold as new I will never purchase another computer part from amazon I don't care what the price is
I called up HGST and asked them about it.I was expecting them to tell me that the drives were older drives that had been sitting around and to just use my receipt if I needed warranty service. That would have been fine if that was the answer. However that's not he answer I got. I was told that these drives were taken out of an external enclosure. Evidently drives that come out of an external enclosure are cheaper so people often take them out , repackage them and sell them for a gain.
Beware as another buyer commented about the drives and service from Oceanside. Received two drives today in cheap bubble wrapping and found out from HGST support they will not honor warranty on these drives if they fail. They are OEM repackaged and there are scratches on the side of the drives that appear to be previously removed from an enclosure or tight fitting drive bay. Can't understand how Amazon allows this 3rd party to sell these drives advertising a warranty and through their Prime service offering. I am sending back the drives.
I purchased and paid extra for this drive since it mentions that the drive comes with a 3 year warranty. (I was going to use this drive on a critical system and I figured a  drive with a 3 year warranty would be less likely to fail. )I purchased the drive in late December 2012 and received the drive on January 4, 2013. The drive came with a June 2012 manufacturing date.
I have used many of these drives and now have 6 installed here at my house - 3 each of 3tb and 4 TB .. Quiet, quick, run decently cool and the single failure I had, HGST replaced quickly with zero problems. Sooner or later most everyone has a drive go bad and then the service is the thing - HGST was A1. I will definitely buy more of these when needed.
If you're going to buy this hard drive from Oceanside Store, make sure you check the warranty through Hitachi when you receive it. The product description states a 3 year warranty, but the drive you get will almost certainly have a shorter warranty than that through the manufacturer and through Oceanside Store there is also a 1 year seller warranty.
*** Unfortunately, this review is not about the performance of the Hard Drive. I wasn't even able to install them and test them out - Keep Reading ***I had my suspicions about the great price on this hard drive but I figured I would try it out and see if I was wrong.When I received my hard drives I looked at the serial numbers and decided check the warranty. Even though the drives had an April 2013 manufacturing date on them they were only showing a 2 year warranty.
Answer: Dear D. Fredriksen ,If you want to buy this product you should be buy also the warranty , for 3 years i think it costly 21.90$ . The warranty not free .Best Regards,Morshed .