Samsung860 PRO SSD 256GB - 2.5 Inch SATA III Internal Solid State Drive with MLC V-NAND Technology (MZ-76P256BW)

Purchase with confidence.

I'm very pleased with this Samsung 860 Pro 1TB SATA SSD from Samsung. I got a pair it to upgrade a client's tower from 3.5in hard drives and breathe new life into the system's performance. I also took the opportunity to run a little performance testing. It did well.I used crystaldiskmark to benchmark drive performance. It tests with and without command queuing. Since all current operating systems I use (Windows 7 and later, Linux and Mac) all enable command queuing by default I'll focus on those results.The drive does great with sequential reads/writes. I got reads of about 558MB/s and writes of about 512MB/s. Most SSD drives do fairly well on sequential read/write operations. With this drive the difference is only about 10% for queued vs unqueued.This 860 PRO drive did better than many other drives with random reads at about 300MB/s and writes at about 207MB/s. Unqueued reads were about 36MB/S (almost 1/10th the queued rate!) and writes were about 65MB/s (about 1/3 the queued rate). Command queuing makes a big difference with random access and makes this drive stand out for this use.The 2.5in SATA form factor works well with the Dell 2.5in to 3.5in adapters that fit into the existing drive caddies making 3.5in drive replacement a breeze.An important factor for me and my clients is reliability. SSD's have come a long way since they were introduced some years ago. The Samsung Pro series has better reliability and higher write specs than their EVO models. They also have slightly larger sizes in powers of 2 rather rounded down to the nearest decimal value.In conclusion, this Samsung 860 SSD is one of the faster ones I've used, especially on random reads/writes with queuing enabled. This drive was perfect to upgrade my client's system. The old mechanical drive is now retired and their previously fairly fast tower just flies now! With this sort of result I love these drives for upgrades. Definitely 5 stars.

I've been using SATA3 SSDs for years. Those include the Plextor M6 Pro / Plextor M6S / Samsung 850 Pro / Samsung 860 Pro and Transcend SSD 360S. Among them, Plextor M6 Pro and M6S were the first ones for me and they have been impressive, although I had to replace my first M6 Pro due to initial recognition failure. After replacement the Plextor SSDs seemed to work flawlessly. Recently I'm using Samsung 850 Pro and 860 Pro at my workplace and on my laptop. They have been working flawlessly without any kind of event until now. Recently I purchased Transcend 360S and installed it onto my old laptop with SATA2 interface. Initially it seemed to work nice but after less than a week of use, my old laptop occasionally freezes up and I had to wait for more than tens of seconds to work with it again. And it was my first experience in which I regretted my purchase of SSD.I think Samsung SSDs are one of those having the greatest compatibility to various systems and quality and durability. As I do not want to get disappointed as time goes on, I may go further with those Samsung SATA3 SSDs. Compatibility? Its just Okay for Samsung. A lot of reviewers protested they are compatible with various systems they have / Reliability? There are a great number of people that say they purchase only Samsung SATA SSDs. / Speed? While speed is always next to reliability for me, my test result was best with Samsung SSDs, followed by Plextor MLC SSDs. / Price? Recently the prices for Samsung SSDs are decreasing suddenly and significantly. And I think the price itself may mean nothing unless the SSDs are compatible, reliable and fast enough.I'm thinking of purchasing a number of Samsung 860 Pro SSDs to store my music and movie files and as frequent backing drive. I think it is also good for Samsung to let the customers know whether they are buying an MLC NAND SSD or a TLC one, while there are a number of brands who does not give important information about their product to the customers. What else to say??

My Macbook Pro was taking 10 minutes to boot up and thereafter would take at least 5 minutes to open apps, such as iTunes, Word, Excel, Spotify, etc. Typing outgoing emails in Outlook would begin the lagging cursor after more than 10 emails were in a chain. I was about to drop nearly $2,000 on a new Macbook Pro, when someone suggested that I upgrade my hard-drive to a SSD drive. I received it in two days (ordered on a Friday night and came on Sunday afternoon). I used Apple's Disk Utility App to erase/format the new Samsung SSD and SuperDuper! app (I had to download it) to clone my old hard-drive using Sabrent 2.5"SATA Hard Drive/SSD to USB 3.0 Adapter (EC-SSHD). After about 5.5 hours of letting SuperDuper clone the new SSD, it was ready to install. Took the screws out the bottom of the laptop, removed the old hard-drive carefully, and used a pair of vice scripts needle nose pliars to remove the side posts off the old hard-drive. Be very careful doing this (supposed to use a very tiny star head, but unless its steel, it's not going to stand up to these screws - this was the hardest part). Put the mounting posts in and hooked up the Samsung SSD (dont tear the thin tape cable), and screwed the 4 screws to secure the hard-drive. Next, replace the bottom of the laptop and turned on. MY MACBOOK BOOTED UP IN LESS THAN 15 SECONDS. APPS TAKE LESS THAN 3 seconds to open now. INCREDIBLE. And I saved nearly a couple thousand dollars for now by not buying a brand new macbook. Very pleased. I just hope that it's a reliable piece of hardware, but it has a 5-year warranty. Definitely recommend!