A teardown video by ChargerLAB shows all the details and specifications of Apple's new Thunderbolt 4 Pro Cable.
Apple formalizes 8-pin 'Ultra Accessory Connector' for switching headphones from Lightning to 3.5mm, USB-C
Apple Further Restricts Upgrade Options on New iMacs
USB-C head-to-head teardown
Apple Thunderbolt Display Teardown - iFixit
Mac Pro 2019 Teardown - iFixit
StarTech Thunderbolt 4 Dock supports 8K displays - 9to5Toys
CalDigit Thunderbolt 4 Element Hub - 4X USB4 Ports, USB 3.2 Gen2 10Gb/s, Single 8K or Dual 4K Displays, 60W Charging, 0.8m Cable : Electronics
Teardown of Zikko Thunderbolt 4 Cable (0.8m)
Video shows teardown of Apple's Thunderbolt 4 Pro Cable - 9to5Mac