SanDisk Extreme PRO 240GB SATA 6.0Gb/s 2.5-Inch 7mm Height Solid State Drive (SSD)

So everything youve read about this drive is pretty much spot on- its really fast and its nearly a TB of storage. Just what I needed to put all my photos & videos on for doing my editing in Lightroom/Photoshop/etc. Its definitely worth going Thunderbolt over USB2/3 if youve got a Mac to eek out the full performance of this drive. That said, there is one problem- SSDs like this do not like being turned off for months at a time. Without power Ive noticed some data corruption of some of my files. Luckily nothing major, but it was bad enough that I wasnt able to recover the data and I had a few corrupted image files. Now I keep my two Extreme Pros in a cheap powered USB enclosure when not in use so they dont have this problem and Ive not seen any more corrupted files. This is a general issue with SSDs and not specific to these drives from what I can tell, so its just a limitation of the technology. This means these drives are NOT good for archival purposes which is too bad.

Great specs, but high price. Maybe worth it for the reliability, I am happy with this and will likely look into a larger capacity in the future I have usually had good experiences with this companies product and this was no exception. No crashes, but I would still recommend not relying on it %100 for backups.

I purchased the SanDisk Extreme Pro SSD 2-3 years ago, not a single hiccup. I purchased my 2nd in November 2015. I even purchased an Extreme Pro USB! This drive is GOOD. My computer starts up fast and with a 10 year warranty this company has your BACK. As a computer tech, I see everything from dead HDDs (hard drives) to HDD overload. When a customer wants fast and sustaining, I give recommend this drive. I had a terrible experience with the Samsung 850 EVO so for anyone trying to pick from the two, this one is the easiest and most reliable. The speed isnt even a question. My computers start in under 7 seconds, with an update 15 seconds. Thank you SanDisk, I sell your products, I buy ONLY your products. For anyone serious about speeding up their computer and looking for a reliable solution. A bang for your buck, THIS is it.

first time using this; before I was using their ultra2 cheaper units. biggest diff: the pro clocks in at about 550mb/sec for BOTH read and write! on the ultra2 its 500 or so on read but 350 or so on write. I will buy the pro, from now on. also, I avoid s*sung evo stuff and even their pro stuff, so this was one of my only choices for high end consumer grade ssd

AVOID!! I purchased 2 of these drives. The first failed within 1 week. SanDisk sent a replacement. The second (the original, not the replacement) then failed 4 months later. Thats 2 out of 2 failed! Usage was mostly just read. There is clearly something wrong with this model. Infuriating for such an expensive drive. I have several of SanDisks 480GB Extreme II drives and had no problem with those. But SanDisk has lost a customer. I am buying only Samsung from here on out. No problems with the Samsung 850 Pro 1TB and 850 Evo 1TB. Given the Samsung firmware fiasco with the 840 Evo, I was trying to avoid Samsung. But Samsung drives have never failed like this. UPDATE: now it is a year later 11/17/2015 2 out of 2 of the replacement drives also failed. Now today, yet another failed. Every single 960GB drive I have purchased, or have been sent as a replacement, has failed. These are running windows virtual machines on esxi (mostly read, not as server, are used as web browsers). I have never had this problem with any of the Samsungs or other brands I have used. This is totally unacceptable. I wasted $1,500 on these drives and untold hours having to reinstall, take the hardware down, etc. Never again.

Very happy with this drive. I recently converted an older Windows XP system over to Linux and I could tell that my hard drive was the choke point in performance. I managed to catch this beauty on sale for $120, and I was happily surprised to learn it came with a 10 year warranty - I guess that SSD drives have really improved their read/write cycle longevity. Anyhow, I moved my Linux install over to this drive and it truly flies now - faster boot time, and much faster application load times. Even Netflix desktop running under WINE works fast. I would recommend this as a boot drive for anyone. (Fantastic for compact home-theater PC builds) It also makes a great laptop/notebook drive, or to stick into an external USB drive case since their are no moving parts - much more drop resistant, requires less power, and generates less heat than a drive with a spinning platter.

My experience has been a terrific waste of my time and effort combined with some of the worst tech support I have encountered. The Samsung 850 Evo is quite a bit less expensive depending on whose listings you look at and about the same performance numbers (Toms Hardware). The Evo Pro is a little more expensive for the same capacities. Short version: tried to format it for HFS+ on my Macbook Pro running El Capitan. The drive ends up with a 200MB FAT volume (??), and an HFS+ volume. Ok, Ill bite, since it appears functional on the surface. NOPE. Cant copy files/folders to it (-36 error, did the dot_clean thing to no avail). The thing is read-only turns out. Cant reformat (input/output error). Have to use Windows Diskpart to clean it, since no OSX or Windows GUI alternatives can control much less modify the mystery FAT partition. Go back and format it as HFS+, and the merry-go-round starts all over. The several tech support people I interacted with via live chat had no clue whatsoever, regardless of the amount of technical info/data provided. A couple of them outrightly lied about escalating the issue, the one guy openly deriding my efforts to get it escalated, when he couldnt even identify what log files he wanted to have in order to do so. In no wise did my case get escalated, which ultimately was no surprise. Hope you all have more success than I did. Sending it back for a refund, and ordered an 850 EVO, pocketing the difference in cost.

This speeded up my 4 year old desktop enough that I have stopped looking for a replacement computer. I use it as my boot drive and for all the Windows and program files. And the good news is, when I finally do get a new computer, I can move this SSD to there and get even better results. (Note that my computer is old enough that it only supports SATA-2, which limits my retrieval speed to only 3.0Gb/s. You need a computer that supports SATA-3 to get the full 6.0Gb/s.)

UPDATE: After about a year, my new drive failed. My Mac would periodically grey screen after freezing ever since I installed this drive. In January it would grey screen a couple times a day. Actually what happened was that one window would freeze then eventually another and another and finally the entire screen would go grey, but the machine would track the mouse for a while longer. One day I noticed that I could not do an image backup and checking the logs it always failed on the same file: ta da! A read error on the disk was the only cause. I tried to access the file directly and it caused the freeze. The Extreme PRO had been causing the problem all along but had finally left a clue that showed it was the culprit. This was disappointing but the real fun occurred when I tried to fix it. First I downloaded a SMART utility to run on my mac and evaluate what was wrong. This was VERY difficult since it involved installing all kinds of packages on the Mac and actually compiling source code to install the linux utilities that scanned the SMART status. The SMART utilities showed that the drive had had about 20 bad blocks and thousands of power cycles - which I presumed was due to the Macs sleep function. I know that power cycles are bad for SSDs but I think I have the right to assume that a major manufacturer would have considered this. My first thought, as the SanDisk rep made in a comment to another bad review, was to upgrade the firmware. Unfortunately Im on a Mac and apparently SanDisk thinks Mac users dont matter, because their fancy SSD utility that updates the firmware only runs on windows. First I tried running it in a VirtualBox Windows machine, but it couldnt find the SSD. So I tried their process to build a flash drive image of their utility and after hours of trying I had to give up because the Mac would not boot from the flash drive, in all likelihood because the utility was designed for an older version of MacOS. I finally succeeded in burning an ISO to a CD with the Macs superdrive. Thank god my imac was old enough to have one! After nearly 12 hours of reading online knowledgebase notes, SanDisk support community postings and trying everything I could with my nearly 40 years of computer experience, I finally was was able to run the utility on the CD and update the Extreme Pro. By this time I was fuming at the waste of time, the poor attention to support materials, and the unmaintained utilities. Not to mention that one of the support articles said that OS X El Capitan was probably not compatible with the drive (ridiculous!) Once the firmware was updated, the drive started to work and has worked for the last few weeks without issue. However I no longer trust it. I would like SanDisk to replace it. However their return policy is ridiculous: you have to remove the drive from teh computer and take pictures of it and plead for a replacement, then wait while your drive is sent in and evaluated before they send you a new one. Once its out of the computer I cant run any tests on it, so theyll have to take my word for it but I bet they wont. And have you tried removing a hard drive from an iMac? Its a multi-hour procedure. Am I going to open the iMac twice to replace their drive when they send the replacement? Or, live without a computer for months while they decide what to do with my drive? Their support policies are ridiculous: Im going to have to buy another drive just to keep using my iMac while they fix my old one. OLD REVIEW: I replaced the hard drive in my 2011 iMac with this and it ZOOMS! I needed a kit from Otherworld Computing to do it (especially to get the screen off and adapt this drive to the Apple-specific connector.) Boot speed is up, used to take 2-3 minutes, now takes 20 seconds. The computer runs cooler too.

Seems to work great, plugged it into my Mac Pro with this adapter: