Customer Ratings & Reviews

I been using this for a year now, truly amazing if you’re looking for external storage. Super fast

I needed a storage solution for my photography business. The external drive is fast and secure.

This is the fastest non-DIY external SSD I’ve ever used. When connected via Thunderbolt 3 or 4 ports (and cables), I’m pretty much getting the read/write speeds claimed by SanDisk/Western Digital. Am using this as additional storage for file portability between my 2019 MacBook Pro 16 and my 2020 M1 Mac Mini.

I use this as storage for my mini Mac 2 and iPad Pro. I do videos and cAn transfer files from one device to another to work on them. Love the portability and light weight. It is perfect for my needs. I would definitely recommend it.

when I first plugged it into the mac it wouldn't recognize it hmmm but kept trying eventually it worked

This is my second one, for my second laptop. They work as advertised on Apple MacBooks. I use them to store my photo library with full resolution versions synced to iCloud. This leaves plenty of room on my 1 TB internal SSDs for the rest, and room to operate at peak efficiency. That is, no penalty for lack of space.

Fast and reliable device! I tried all the other brands but nothing compares to this speed demon

This a very nice and fast hard drive. It works great with my iMac.

It works well as thunderbolt 3 external speeds on m1 MacBook.

Fast & excellent buy. Highly recommended esp. for mac users.

Great product and works great with iPhone 15 pro max.

A top-end SSD solution. It wasn't the manufacturer's fault that the iPhone 15 Pro Max rejected it as incompatible, but that was a disappointment. Although I had purchased it for that, re-purposing it as the external drive of my MacBook Pro to receive iPhone video was still a win. The real reason for four stars instead of five was that it gets quite hot even when sitting there quiescent doing nothing.

Works great! I can store a lot of things on it! Honestly

The equipment arrived on time, I haven't tested it 100% yet but everything seems to be going well.

Sandisk Professional PRO-G40 External hard drive is amazingly compact. The harddrive is very small and compact almost the size of a credit card but of course thicker. Thunderbolt option makes it even better. If you have larger file size such as videos this, make it worth the buy. The time of waiting all day to just transfer a large file from a hard drive to your computer is finally over. This being a solid state drive, and the fact that the product looks very well built almost like a tank just makes me feel comfortable that my files will be safe. This is also compatible with your windows PC but you must format the hard drive before using. One flaw but not a very big flaw is the cable it comes with, its just not long enough, it is only about 5 inches long. Other than that, set up was very simple plug and play. With 2 TB oof space, this offers more than enough available space to be on the go and work on your projects. As the name states it is a portable drive and for some it may be too small but if you are looking to have that compact, nice looking and fast hard drive this is the one for you. Like I said videos transfers are not a big problem any more with this hard drive and best of all you can work directly from it.

Love the protection against dropping my cell phone.

The SanDisk Pro-G40 external SSD is one of the best, if not the best, external SSD on the market right now. Its perfect for videographers, vloggers, photographers, or anyone else who wants high performance storage in a portable form factor that can attach to a thin/light laptop, like a MacBook Pro for Thunderbolt3 speeds. If you have a newer Intel laptop, you can also take advantage of the Thunderbolt3 speeds, otherwise, PCs over USB-C will fall back to USB-C speeds of 3.2 Gen2x1. Thunderbolt3 offers up to 40Gbps over USB-C, while USB 3.2 Gen2x1 offers only 10Gbps. In real world performance that's about 2700/1900MB/s Read/Write for TB3 and 1000/1000MB/s for USB-C. Pretty big difference so you'll want to make sure your laptop supports TB3 to make the most use out of this SSD. My MacBook Pro has TB3 so it supported the full bandwidth, the main difference for TB3 and TB4 is better minimums on TB4 but the max is still 40Gbps. The beauty of the SanDisk Pro-G40 however isn't just in raw transfer speeds, which are great, but the random I/O and read/write speeds are fantastic for using this drive as a scratch disk. That's really important for large files because storage is at a premium on MacBook Pros and you're not going to want to keep a lot of large files on your local laptop drives if you can help it. So for work flow, I typically connect my Mirrorless digital camera directly over USB-C to my MacBook Pro, then I'll manipulate the files using MacOS and copy over the video files I want to edit directly to the SanDisk Pro-G40. The files never stay on my MacBook. The transfer speed is as fast as the source (Nikon Z30 reading at 150MB/s from SD card), so pretty slow overall, but once it gets to the Pro-G40 that's a different story. From there, I can edit the video files using LightRoom, PhotoShop or Premiere and its all as silky smooth, responsive, and FAST. Its as if the files were on my local SSD o my MacBook Pro. This also saves a lot of Read/Writes on my local drive which can cause the SSD to wear over time, although I've never had a drive fail or lose capacity over this. But if you can offload that wear/tear to an external, why not? Once I'm done editing photos or videos, I can then upload the finished, much smaller edited files first over Wi-Fi to the cloud. Then I can either delete the RAW footage or transfer those to a NAS directly over USB-C as well. The build quality on the Pro-G40 is excellent as well, rugged and premium looking with silver accents and a rubberized finish on one-side so it doesn't mark up or scuff hard surfaces you set it on. The top side is metal and helps the drive stay cool by dissipating heat. The drive is heavy and water resistant and looks and feels amazing. Very good SSD and the 2TB storage is massive. This alone is like a $600 option on the latest MacBook Pro (2TB to 4TB) and you can use this drive again and take it with you if you upgrade again. You can also move it around from laptop to PC or NAS as mentioned so you don't have to deal with slower transfers over WiFi or even NIC (1Gbps vs. 10Gbps). So yeah the Pros far outweigh the cons!

I was in need of an SSD with a higher than 1TB capacity for use with my MacBook Pro for extended storage and file transfer. I was familiar with the standard SanDisk line of SSDs but was very curious about this Professional series and thought I'd try out the 2TB model. What an excellent decision. The SanDisk Pro-G40 SSD is a dream. First, It's comes pre-formatted in APFS, but can be reformatted for Windows usage as well. It's tiny, very solid, well-built but I truly love its 2700MB per second read speed and its 1900MB per second write speeds! My new MacBook Pro is Thunderbolt 4 ready and this SanDisk drive has Thunderbolt 3 built in, which provides up to 40Gbs transfer speeds...and I see it. I plugged it into my MacBook Pro with the included short Thunderbolt 3/USB 3.2 Gen 2 cable. I transferred 500GB of data from my older SSD to this new drive and it only took a few minutes. I was very pleasantly surprised! Since Im using this drive as an external where I store all my Photoshop/Illustrator and Dimension files, I need that speed. So far, I have had no issues with write/read speed to and from it and saving working files seems instantaneous now. It also is compatible with USB C speeds of 10Gbps in case your laptop/desktop is not Thunderbolt 3 capable. The drive is also tiny at 2.3"w x 4.3"l x .5"h. It's very light and is made from what appears to be aluminum. It's a nice dark slate color and the entire base and sides are rubberized, so there's no slippage or fear of it easily being knocked of my work surface. But, even if it does get knocked off, this drive can handle a 9' drop per SanDisk's specs. It's IP68 rated so it's highly dust and water resistant and it can handle up to 4000 pounds of crush pressure. This thing is a beast! The only gripe I have with this drive is the activity LED. It flickers constantly while it's on and is distracting as I work. I've since covered the LED with black electric tape and annoyance solved! My previous SSD drive had a solid lamp versus flickering and it never bothered me. Overall, I am extremely happy with this drive and if you are in the market for a heavy-duty, external drive that is extremely fast, this is a no brainer. I very highly recommend!

I only take 4K video these days (except for some 2K video from my Insta360 action camera) then edit and produce content as 4K video. I tested the SanDisk Professional - PRO-G40 SSD portable drive with using my Thunderbolt port on my MacBook Pro 14 M1 Max and Final Cut Pro, the drive is formatted as APFS out of the box. Simple copies and benchmarks confirmed the advertised performance around 1900 MB/s writes and 2700 MB/s reads. Also, I decided to test this drive on my Windows 11 Laptop, attaching it to my USB-C 3.2 Gen 2 port, which required me to format the drive as an NTFS volume. Of course, using USB-C didn’t provide the same level of performance as a Thunderbolt port, but the drive still performed competently and was faster than any storage device I previously attached to this system, doing almost a gigabyte per second read and 825MBs writes. Using the drive as a media source for DaVinci Resolve also produced good results, I usually transfer files to my onboard SSD, but in using this drive that was not necessary. The drive excels and really comes in handy to transfer files quickly or even use in real time to edit video source files or use as a destination drive when rendering video. The build quality of the SanDisk Professional - PRO-G40 SSD portable drive is quite rugged with a rubberized covering with an LED light indicating it is powered on and flickers with activity. Also, when traveling this portable SSD will come in handy, usually I try to upload video content to my Network Attached Storage drive at home or Cloud based storage, but often that is difficult as it is dependent on bandwidth at your travel location. Always having a large capacity portable drive is good and provides some redundancy for storing once in a lifetime travel footage. Pros: - Speed, Performance - Rugged build - 5-year warranty - Thunderbolt/USB compatibility - Formatted for Macs out of the box Cons: - None observed

Purchased this despite recent warnings about SanDisk (WD) drive failures. Turns out they were right. Drive is unusable - Cannot be reformatted. Thank god for backups.