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.
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#케이블 4 posts
Laptop-to-TV cables: what 4K 120Hz actually requires
Getting 4K 120Hz from a laptop to a TV depends on the ports at both ends, not just the cable. Calculating bandwidth per resolution shows exactly where 18Gbps and 48Gbps diverge.
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.
HDMI 2.1 vs 2.0: 4K 120Hz, 8K and Choosing the Right Cable
To run 4K 120Hz gaming, 8K or VRR you need HDMI 2.1 — and a certified Ultra High Speed cable. Bandwidth is 18Gbps versus 48Gbps. Here is the required bandwidth computed by resolution and refresh rate.