Super-fast and durable SSDs are commonplace now, but the super-rugged dual Thunderbolt/USB-C SanDisk PRO-G40 SSD is pretty unique and several notches above the run-of-the-mill offerings, as Kevin Carter discovers. Update June 2025: Prices are significantly lower now than when reviewed, making the SanDisk Pro-G40 hard to ignore. Check prices and availability of the SanDisk PRO-G40 [affiliate links]   WEX Photo (UK)| Sandisk/WD Store (UK)| Amazon (UK) (Lowest price)   B&H Photo (US) | Adorama (US)| Sandisk/WD Store (US) Currently with big savings!Amazon (US)   What is it? Offering compatibility with both Thunderbolt 3 (40 Gbps) and USB-C 3.2 Gen 2 (10 Gbps), this slick-looking bus-powered NVMe SSD is a highly portable…