SanDisk Professional PRO-G40 Portable SSD 4TB (up to 3000 MB/s, Solid State Drive, Thunderbolt 3 (40Gbps), USB-C (10Gbps), Ultra-rugged IP68 dust/water resistance. Formatted exFAT)

Does the job amd lasts for years!

Good quality feel to this product. I have used it for a while now and it has performed exactly as I expected with no issues.

Probably the fastest portable drive currently available.Using it on a Mac Mini and it is nearly as fast as the inbuilt storage. Makes editing videos and photos super quick.The design is very sleek and it is small and very portable. It stays cooler than expected. The included cable is quite short but does the job.It is really expensive and only provides the top speeds with thunderbolt. If you have only usb 3.2 or don’t need the fastest available then there are much cheaper options available.

G-Drive Technology initially had a good history within the Audio/Creative community, boasting well build casing/caddies, high end prices but fantastic support.Since past decade, this product was then manufactured by Western Digital (which I was not a fan of personally). Of a drive this size it's not always cost effective to purchase a 5TB SSD or larger, which offers you better reliability, as it goes for portable drives.I purely purchase this on ascetics and rugged casing and wanted a change and felt a change to my 20+ use of Seagate (Which I regret now!). The drive was formatted Mac Journalised, however I noticed when both drives where connected the boot time on G-Drive was slower and in time now many issues, shuts my computer down when trying to move files and light flashes non-stop, not allowing you open folders.Please note I am not a basic user hence the in depth review, I believe there is a faulty batch of this drive, poorly tested circuit issue with the enclosure. However, Western Digital DO NOT QUALITY ASSURE their products. So if RMA in progress ( a return) the faulty Drive is NEVER TESTED or report on fault. Yes, they will replace within warranty period, but how can you be confident the problems won't arise again?CONCLUSION:1. SanDisk Professional SSD Drives are fantastic which is a product of Western Digital, better reliable (very expensive)2. Surprising the success of SanDisks portable SSD, Western Digital cleverly changed the name of G-Drives to SanDisk Professional within the past year. (Which also sold to Western Digital 2016)3. If you get another 5TB hard drive, same format, you will notice the G-Drive will boot slowly. This is with the same data on drive.4. The physical drive is most likely OK, but the enclosure is faulty, but I will lose all data because $8 Billion profit company can't afford test returns, to ensure batches of HDD are compliant, as they would have to recall them all.

I bought this so I could reformat and reset a cloud drive. Initially, the drive wasn't visible to windows or my cloud drive. I found a YouTube video which had a solution that involved deleting one of the partitions and resetting it. That worked and the drive was then visible. There were no included instructions that suggested I might have to do that.Once working it's very good and, I was able to back up around 4TB of data without difficulty.I've never bought a drive before that I had to do anything like I did though.

It was made for the Mac!Set up for Time Machine was simple.Remains gently warm.Recovery of an accidentally deleted folder was easy and quick.Perhaps a bit pricey, but you get what you pay for - a first class portable drive.

Great for use with Apple Mac Time Machine backups. More or less set itself up. Has the advantage of having an old fashioned spinning disc for storage which should prove a safer long term back up solution than a solid state disc.

Great item very robust have dropped it a couple of times still working perfectly definitely recommend it