iPhone USB-C: the included cable caps you at 480Mb/s
iPhone 17, Air and 17e are USB 2 (up to 480Mb/s). Apple's support article lists only Pro models for 10Gb/s, and even those need a separate USB 3 cable rather than the one in the box.
Tag
#USB-C 3 posts
Reading USB-C Cable Ratings: 240W Says Nothing About Speed
A USB-C cable rated for 240W can still cap out at 480Mbps for data. Power ratings and data ratings are separate specifications carried by separate wires. Here is how to read e-marker requirements, speed tiers and length limits.
USB4 vs Thunderbolt 4 and 5: Reading the 40 and 80Gbps Specs
A USB4 logo does not guarantee 40Gbps — the specification's floor is 20Gbps. Thunderbolt 4 mandates 40Gbps and Thunderbolt 5 mandates 80Gbps. Here is what actually differs behind the identical USB-C port.