Yes. The USB4 C-to-C Cable works with the entire iPhone 15 lineup for data, video output, and charging. Data speed depends on the model. The iPhone 15 and 15 Plus use a USB 2.0 connection, so they transfer data at up to 480 Mbps. The iPhone 15 Pro and Pro Max support USB 3.2 Gen 2 speeds up to 10 Gbps.