SanDisk 1TB Extreme Portable SSD

Product Description

The ruggedized SanDisk Extreme Portable SSD delivers high-speed transfers with up to 550MB/s read speeds. This makes it perfect for saving and editing hi-res photos and videos. With an IP55 rating, it also stands up to rain, splashes, spills and dust.(1) | 1GB = 1,000,000,000 bytes; 1TB=1,000,000,000,000 bytes. Actual user storage less. | Based on internal testing; performance may be lower depending on drive capacity, host device, OS and application. 1MB=1,000,000 bytes. | (1) IEC 60529 IP55: Tested to withstand water flow (30 kPa) at 3 min.; limited dust contact does not interfere with operation. Must be clean and dry before use. | (2) Up to 2M (6.5’) on a concrete floor | (4) Shock-resistant (up to 1500G) and vibration-resistant (5g RMS, 10-2000 HZ), Non-Operating Temperature (from -20 degrees Celsius to +70 degrees Celsius), Operating temperature (from 0 degrees Celsius to +45 degrees Celsius) | (5) Password protection uses 128-bit AES encryption and is supported by Windows 10, Windows 8.1, Windows 7 and macOS High Sierra, Sierra or Mac OS X El Capitan

Features

• High-speed transfers with up to 550MB/s read speeds let you move hi-res photos and videos faster (Based on internal testing; performance may be lower depending on drive capacity, host device, OS and application.)
• Ruggedized, water- and dust-resistant (IP55-rated) (IEC 60529 IP55: Tested to withstand water flow (30 kPa) at 3 Minch; limited dust contact does not interfere with the operation. Must be clean and dry before use.)
• Shock-resistant solid state core for greater durability (Shock-resistant (up to 1500G) and vibration-resistant (5g RMS, 10-2000 HZ), Non-Operating Temperature (from ‐20°C to 70°C), operating temperature (from 0°C to 45°C))
• Compact and pocket-sized
• For PC and Mac users
• Built by SanDisk, a technology leader and pioneer of the modern day SSD, to deliver superior performance
• Order with your Alexa enabled device. Just ask "Alexa, order SanDisk External SSD."

Top Reviews

Amazing drive, but you MUST format it
by Zenon Sommers (4 out of 5 stars)
November 10, 2018

The drive itself is amazing. It's tiny, light, and fast as hell, truly living up to the promised 550 MB/s.

That said, if you plan to use this drive for anything other than movies, music, and pictures, you need to format it before using it. This is especially true if you plan to use the drive to back up your phone or computer. Out of the box, the drive is formatted with exFAT and an allocation size of 1 MB. That means that any file less than 1 MB takes up 1 MB of space. 1 MB may not seem like much on a 250 GB-2 TB drive, but with the myriad of small files that show up on backups taking up 1,000x more space than normal, it adds up. See the attached pictures for a small text file taking up 2,700x more space than it actually is and a 177 GB backup taking up an extra 73 GB on the drive.

I mention this because it's an easy fix. According to the command line, the sector size on the drive is 512 bytes, meaning there is no reason to have an allocation size that large. All you need to do is format the drive as exFAT and select a smaller allocation size than 1 MB. Microsoft recommends 128 KB, but you could go as small as 4 KB or as large as 256 KB and still be far more efficient than the factory 1 MB allocation size.
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5 years of travel photos loss
by Long (1 out of 5 stars)
September 26, 2018

This drive is terrible. It was stable for the first month of use, but now, my Lightroom Profile won't load, can't transfer photos off of it.

Every action you do with the drive, whether it be transferring files on, transferring files off, it'll hang randomly. I bought the 1 TB Hard Drive and I can't transfer 5 GB without it hanging at 2-3 GB's and just freezes completely (see attached for error).

Can't open up Lightroom cause the Portfolio freezes before it fully opens. Every hard drive I have on my computer works, except for this one.
5 years of travel photos loss. I am never buying SanDisk again, sticking to Samsung SSDs from now on.
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Corrupts files and data after a couple of months of use
by G. Hutcheson (1 out of 5 stars)
October 24, 2018

I've been a sandisk fan for many years buying many terabytes of memory in many forms. I started with them in photography and came to rely on their quality over other brands. I didn't mind paying a premium, because protecting my data and files was far more important.

This is the first time I've had a serious problem and it's an insidious one. After a couple of months of ownership, I am having a problem with it corrupting a file when I save it, with no message or error notice. Come back a few hours later and the file is either missing data or is altogether unreadable and all my work is lost.
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The best USB SSD drive that you can buy! Don't look at anything else!
by Ronald Epstein,Top Contributor: Amazon Echo (5 out of 5 stars)
June 26, 2018

In short, I needed an SSD to back up my MacBook Pro. In the past, I used a spinning hard drive for backup using SuperDuper software and the process was painfully slow. Often, for about 500GB of data, the backup and restore took up to an hour.

With an internal SSD on my MacBook Pro it made perfect sense that the destination backup should also go on an SSD drive where transfer speeds would significantly increase. One more thing to consider: spinning hards drives have a much higher failure rate than SSD drives. I can't begin to tell you how many spinning backup drives I have purchased in the past that have ultimately failed.

SSD is the future and the fact that prices have dramatically decreased on these drives gives no-one an excuse for not buying them.

I did a lot of research on various SSD drives before selecting this SanDisk 1TB drive. My first choice was a Samsung in a colorized metal case. The reviews, however, led me to believe that there were some major issues with the Samsung drives as they included embedded software that was difficult to remove. This is not something anyone wants when buying an SSD drive.

Reading the reviews on this SanDisk Extreme, it was easy to see that this would fit perfectly for my needs. The reviews across the board were very positive. No embedded software. This particular SSD has been rated as one of the very fastest USB drives available on the market as of this date.

Upon arrival, I was astonished at how small this drive actually is. I mean, it's absolutely tiny. You can fit it into your jeans pocket and you would not feel it. We really have come a long way in external SSD drive portability.

I am not particularly happy with the covering on this drive. It's a dust magnet. The second I placed it on my table it had already collected airborne dog hair. However, on the plus side, this thing is so rugged that you can drop it from just about any height and it won't break. So, I guess that is more important than anything else.

It was nice to see that the drive includes a USB-C cord with USB-A adapter. The cord also securely fits the drive without any wiggle. The only thing negative I have to say about the cord is that it's too short.

I am including in my photos the result of a recent backup of my MacBook Pro via SuperDuper software. You can see that about 425GB of data was backed up in 30 minutes time. With a spinning drive, that would have taken 2-3 times longer. This drive is really super fast!

This drive does come formatted for Windows. If you buy it for your Mac, you need to go to DISK UTILITY (in your applications folder), select the SanDisk drive, then click on ERASE. You will want to format the drive in OSX Extended Journaled. The format takes seconds to do. You are then ready to transfer data to the drive.

By far, this is the best SSD drive I have ever owned. Do not hesitate to consider this above any other.
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Reformatted to NTFS for large number of small files and it's perfect!
by couture fan (5 out of 5 stars)
August 13, 2018

When I purchased this it came in ExFAT format and I tried to copy one of my 16GB folders, which contains 750,827 Files, and 20,483 Folders. The drive could not copy this entire 16GB folder onto the 500GB drive. After reading a little bit about ExFAT and smaller files, I reformatted to NTFS, which took all of two seconds to do. I was then able to copy all my files (130GB) onto the Sandisk 500GB drive without any problems. In fact, this thing FLIES! I love it and hope that it lasts for years.
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Super fast and super portable. - UPDATED
by HeyJoe! (5 out of 5 stars)
May 15, 2018

Super fast and super portable. Using the 1TB version, I'm getting an average 470 MB/s write and 515 MB/s read with a 2016 MacBook Pro over USB-C. The drive weighs absolutely nothing. The hole in the top is perfect for a carabiner to fit through and hang from a tab in my backpack.
2 gripes:
1. I wish the USB-C to USB adapter was permanently tethered to the cable, and that the cable had a way to clip to the drive.
2. Good-luck ever getting the warranty registered on this thing. The San-Disk warranty registration page is AWFUL. I tried to register it for almost an hour in a few different browsers and it kept telling me S/N doesn't match product. I bought it directly from Amazon as the seller or I'd worry that it was a knock-off. They make great products, but their website UX leaves a TON to be desired. Ended up reading on-line about several other people having this same issue with the site.
2/7/19 UPDATE:

Still love this thing - In fact, I also got the 2TB version. It is fantastic for dumping video footage on a shoot or other fast transfers. I always buy a few cheap 4 or 5 TB WD or Hitachi portable drives (currently in the $120 or less range) for redundant back-ups when I have 10x as much time available to back-up at leisure. No matter what - if it is data I need to keep, I always have redundant backups. (EVERYTHING can fail - or get lost - or stolen...) This drive, however, wins for convenience, speed and portability. Usually about every month I erase and replace about 750GB worth of data on this and about 1.3TB on the 2TB version. They have both performed reliably and been a huge time saver when I'm working on the road an under time crunches.
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Extremely Fast but Very Expensive
by Tony A (5 out of 5 stars)
February 11, 2018

Pros: EXTREMELY fast and very small ... It blows away all my other external drives ...

Cons: Very expensive and this SSD runs hot while running large file transfers ...
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Drive didn't work on my system, Windows 10 reports errors, fatal hardware error.
by Thomasdoc (3 out of 5 stars)
March 12, 2018

I have returned this 1TB SSD because it is not working on my computer system. I believe it has a design flaw because the replacement unit similarly didn't work. Initially, the SSD works after being fully formatted as NTFS and then bitlocker encrypted. CHKDSK reports it as ok without errors. HOWEVER, once it is used to move data between two computers (synchronize files), it is suddenly reported by Windows 10 as having errors, which Windows wants to correct. Then, CHKDSK reports multiple errors on the drive. Then the drive stops being recognized alltogether wiht fatal hardware error. Several hours, reformats, etc. later, same problem. Both SSDs that I had (first unit and replacement unit) showed the same problems. No solution. I lost at least a day worth of data. This is unfortunate because the drive is small, lightweight, and waterresistant. Unfortunately, if it doesn't work it's useless to me. I am pretty computer savy (I build my own systems), so I am fairly certain that I did what could be done to get it to work. This drive may perform better on other computer systems.

Note: I had a 500 GB SSD for many years which worked flawlessly on all my systems, with bitlocker encryption on. Furthermore, I have now purchased another 1TB SSD from another well known SSD manufacturer, which works perfectly without a hitch. Last, my previous experience with SanDisk was good. I have had SanDisk micro SDs for many years which worked well.
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doesn't support new mac file system APFS - update
by Gatesbuster (3 out of 5 stars)
October 5, 2018

I bought this drive to backup my macbook pro which is running now mojave; it doesn't support APFS; it only support HFS. I also bought a samsung T5 and was able to format to APFS to the contrary of the sandisk. So it is definitely not a good disk for mac system

Actually I was able to format this disk to the newer Mac APFS format, but not until a couple more emails with tech support. Otherwise no easy instruction to find on SanDisk web site.
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This unit is very fast and it is a high ...
by JM (5 out of 5 stars)
April 13, 2018

This unit is very fast and it is a high quality and reliable product. I was not able to register the product on the website. The serial number was not recognized. I may call SanDisk to know why.

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