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SanDisk's Pro-G40 Is an 'Ultra-Rugged' Portable SSD

SanDisk's most rugged portable SSD offers both Thunderbolt 3 and USB 3.2 Gen 2 interfaces.

 & Matthew Humphries Former Senior Editor

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SanDisk today launched its most rugged portable SSD yet, which will survive being immersed in water, dropped from height, and crushed.

The Pro-G40 SSD is referred to as "ultra-rugged" due to its IP68 dust/water resistance rating. It can also handle 4,000lb of crush resistance, and drops of up to 3 meters without your data being at risk. The NVMe SSD contained inside is combined with an aluminum core to pull away heat and a "pro-grade" enclosure for protection.

Dual-mode compatibility allows the Pro-G40 to be accessed using either a Thunderbolt 3 40Gbps connection, or a USB 3.2 Gen 2 10Gbps connection through a single port. SanDisk includes a cable that supports both interfaces so connecting it should never prove problematic.

In terms of data transfer speeds, you can expect to achieve up to 2,700MB/s reads and 1,900MB/s writes using Thunderbolt 3, and 1,050MB/s reads and 1,000MB/s writes using USB 3.2 Gen 2.

The Pro-G40 SSD is available to order now direct from Western Digital in either 1TB or 2TB capacities and measures 4.37-by-2.28-by-0.47 inches. Delivery time is estimated at up to four weeks for both portable drives, though. The 1TB model costs $299.99, while the larger 2TB model is $449.99. Both drives will work with Windows 10/11 and macOS 10.13+ and include a five-year limited warranty.

About Our Expert

Matthew Humphries

Matthew Humphries

Former Senior Editor

My Experience

I started working at PCMag in November 2016, covering all areas of technology and video game news. Before that I spent nearly 15 years working at Geek.com as a writer and editor. I also spent the first six years after leaving university as a professional game designer working with Disney, Games Workshop, 20th Century Fox, and Vivendi.

I hold two degrees: a Bachelor's degree in Computer Science and a Master's degree in Games Development. My first book, Make Your Own Pixel Art, is available from all good book shops.

My Areas of Expertise

  • PC components and system building
  • Raspberry Pi
  • Software development
  • Storage technology
  • Video games and gaming hardware

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