What external SSD should I get for a MacBook Air?

Regarding the MacBook Air: Get the Samsung T7. It’s the best balance of speed, price, and reliability, hitting around 1,050 MB/s read and write over USB 3.2 Gen 2—more than fast enough for big files and gaming. It’s small, tough, and doesn’t need an external power brick. Unless you’re doing pro video work, you won’t notice the difference from Thunderbolt speeds.