I added the Samsung 860 EVO 1TB mSATA Internal SSD (MZ-M6E1T0BW) to my four year old Dell XPS 8500. Desktop computing is now as much fun as using my iPad, but the PC can obviously do much more. It's like I got a brand new PC, but kept all my trusty software, settings and data files.The Dell XPS which originally came with Windows 8 and later upgraded to Windows 10 was running slow whenever the PC went looking for files on the old hard disk drive. This slow-pokieness was manifest with slow startups, mind numbing waits for Windows Explorer to open and loading large files into running programs. After installing the mSata, startup times are reduced by 75%, Windows Explorer pops, Microsoft Office purrs and I have even been surprised by the speed gain in applications and internet access (Edge).Installation was a breeze and greatly facilitated by YouTube instructional videos on mSata installs in the XPS 8500. The mSata drive did not come with the tiny M2 screws necessary to hold the card in the slot, but these were easily available on Amazon. I had one problem. I broke off the small plastic lever that helps hold the video card in place ( OOPS ), but this doesn't seem necessary so I haven't replaced it. While mSata slots are fairly obsolete now and have been replaced by better technology, they work fine and have double the bandwidth of a regular slot on the 8500's PCI bus. This means that all other things being equal, the mSata or equivalent slot will run much faster that installing a regular SSD drive in a PCI slot.The partition moving software that came with the drive looked fine, but I didn't use it. I used EaseUS Partition Manager 12.9 purchased on Amazon. There are many other partition manager software options for this job. I first used EaseUS to clean up unused partitions on the C: hard disk drive. You don't have to do this but it eliminated 300 GB of wasted space and created a full 1 TB C: partition.After partition cleanup on the C: hard disk drive, I had a clean 1TB partition. EaseUS was able to move the entire C: drive image onto the new mSata drive, rename the mSata drive as the C: drive and remapped the old disk drive version of the C: drive as drive H: so it is still accessible. All of this work was accomplished in a very straightforward manner by EaseUS. I now have a complete drive image backup on the H: hard disk drive and plan on using EaseUS to transfer the complete partition/image from the C: mSata drive to H: from time to time. Pretty simple local backup strategy. I also have everything backed up on the cloud.I would recommend spending the extra dollars to get a SSD drive large enough to store everything on the C: drive. Getting a smaller albeit less expensive SSD drive requires quite a bit of manual effort to move Windows to the SSD while keeping Windows data file libraries on a regular hard disk drive. ( Note: many have done this with 128 GB SSD drives and been happy with their results. ) With the larger 1TB mSata, I was able to move everything from the Dell XPS' 1 TB disk drive to the mSata all at once and automatically via partition manager software. Much less effort and chance for error.I have had this new mSata setup for a month without any problems. I'll update this review if problems arise.