How fast is the data transfer speed? The Thunderbolt 4 Pro Cable can transfer data up to 40Gbps with supported Thunderbolt devices and ports. Related articles Can this cable charge my device at a high wattage? Can I use this cable for non-Thunderbolt devices and accessories? Is the Thunderbolt 4 Pro Cable certified? What materials is the cable comprised of? Quick Guide & Instructional Manual Comments 0 comments Article is closed for comments.