What is Portable USB speed?
Portable USB speed (10 / 20 / 40 Gbps)
USB 3.2 Gen 2, Gen 2x2 and USB4/Thunderbolt.
Short answer
Gen 2x2 (20 Gbps) drives drop to 10 Gbps on most laptops and Macs.
Portable USB speed when buying a ssd, hard drive & memory card
USB 3.2 Gen 2, Gen 2x2 and USB4/Thunderbolt.
Why it matters: 10 Gbps (~1,000 MB/s) works almost everywhere; 40 Gbps enables editing straight off the drive.
Look for: Gen 2x2 (20 Gbps) drives drop to 10 Gbps on most laptops and Macs.
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