SanDisk Professional Pro-G40 SSD

USB and Thunderbolt connectable ; Exceptional transfer speeds ; Tough enclosure

Expensive ; No USB-A cable ; Maxes out at 2TB

When connected via Thunderbolt, it offers blistering speeds and acceptable performance over USB. However, regardless of that, given the price, unless you have some serious cash to burn, this isn’t an impulse purchase.

Headline performance on Thunderbolt ; USB connectable ; Ultra-resilient design

Super-expensive ; Limited capacities ; No USB Type-A adapter included

An excellent durable external drive that delivers blistering speeds over Thunderbolt and decent performance over USB. Irrespective of that, given the price, unless you have money to burn, it’s hard to recommend when there are cheaper drives with...

Blistering speeds over a Thunderbolt 3 connection ; Extremely rugged ; Handsome design ; Thunderbolt 3 cable included

High cost per gigabyte ; Tricky to reformat for Windows use ; Slower over a USB-C connection

The Mac-centric SanDisk Professional Pro-G40 SSD, an external drive with sizzling speeds via Thunderbolt 3, is built to withstand anything the elements can throw at it.

Dizzying transfer speeds ; Rugged and durable grippy build ; Small size ideal for portability

Expensive for its storage size

It's not the biggest SSD out there, and it certainly isn't the cheapest, but the Sandisk Professional Pro-G40 might just be one of the fastest. With frightening transfer speeds, faster than even the maker itself claims, the Pro-G40 is an ideal workflow...