SanDisk Professional PRO-G40 ThunderBolt 3 Dual Mode Portable SSD Review – Unbelievable 3.1GB/s Data Transfer Speeds

REPORT SUMMARY AND FINAL THOUGHTS

The SanDisk Professional PRO-G40 is marketed as a ‘dual-mode’ SSD with listed top performance of 2700MB/s read and 1900MB/s write data transfer speeds, however, we have done significantly better than these rather conservative specs.  Our testing demonstrates speeds of 3118MB/s read and 2657MB/s write which is probably the best way to catch out attention…especially when this is the best ThunderBolt 3 speeds we have seen to date.  Conversely, this device still performs very well as a USB 3.2 device with speeds of 1090MB/s read a 1070MB/s write.

The grey anodized aluminum and silicone IP68 rated exterior with the reinforced Type-C port of this SanDisk Professional PRO-G40 Portable SSD is beyond reproach.  It is an amazing build.  Its performance coupled with a limited 5-year warranty simply makes things all that much better.  The rather high price of the PRO-G40 is as can be expected for what SanDisk hopes is the best in the business.  The only way we think SanDisk could have improved things would have been with a longer Type-C connector.  Editor’s Choice!

 

SanDisk Professional PRO-G40 Portable SSD Ratings

Product Build
Performance
5-Year Warranty
Price and Availability

Highest ThunderBolt 3 Speeds!

The SanDisk Professional PRO-G40 Portable SSD is a dual mode SSD that provides the highest performance we have ever seen from ThunderBolt 3, and equally fast USB 3.2 performance. It has a flawless build, is IP68 rated and comes with a 5-year limited warranty.

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