I bought this to save a few bucks off of a New in Box SSD. The SSD arrived at my home earlier than the original stated time. The SSD did not arrive in original manufacturers box nor with any paperwork. I believe the original manufacturer's 5 year warranty is still in place but not totally sure on this. The SSD was safely packed and in excellent like new condition. My goal was to upgrade one of my existing Samsung 850 250GB drives to a newer Samsung 860 500GB SSD. I was expecting this to be very easy as I had installed two 850s in two computers previously without incident. I found this not to be the case for this upgrade as Samsung's Data Migration software was displaying an error code. This left me wondering if the problem with either the new 860 SSD or the Samsung Data Migration software. After some troubleshooting I determined the problem to be Samsung's Data Migration software. It appears this migration software can be "finicky". You can be lucky and it will work great or its totally useless giving you a useless error code & no clues as to why the data migration process is failing. Nothing. Zero. PDF instructions and one line help are of no value. After some troubleshooting I determined I needed to purchase new cloning software to clone my existing SSD to the new 860 SSD. This was not Best Buy's fault as I would have had to do this even if I bought a New in Box product. I purchased the lifetime update version of the AOMEI BackUpper software. The AOMEI software allowed me to properly clone my existing drive to my new 860 drive without incident. I installed my new 860 drive and bingo, the beast booted up first time just fine and has been working fine for a few days. I scanned the new drive using the Samsung Magician Diagnostic Scan and it passed with flying colors. FYI, you'll get about a 10% improvement in performance. Samsung makes great SSDs along with their related Samsung Magician software (yes, Rapid Mode does gives you a boost) but....their Data Migration Software is not up to the same standard of quality. Be prepared that you "might" need to buy cloning software in addition to the Geek Squad Certified Refurbished SSD. Other than this glitch, I'm a happy customer. Hopefully I have provided some helpful feedback for some upgraders out there.