![]() “Passive” Thunderbolt 3 cables reduced in data-transfer rate as they got longer. Thunderbolt 4 cables include a small number 4 underneath the lightning bolt logo. ![]() Like Thunderbolt 3, Thunderbolt 4 ports and cables show the small lightning bolt logo, which helps to differentiate TB4 from USB4 and older USB-C 3.2 ports. Intel VT-d direct memory access (DMA) protection to prevent physical DMA attacks.Wake the computer from sleep by touching the keyboard or mouse when connected to a Thunderbolt dock. ![]() 100W PD charging on at least one computer port (up to 240W when certified PD 3.1).Support for docks with up to four Thunderbolt 4 ports.PCIe at 32Gbps for data-storage speeds up to 3,000MBps.Support for two 4K displays or one 8K display.Previously, 2m cables could not be used with USB-C monitors-a limitation rectified by Thunderbolt 4. It can also be used with many devices other than displays, unlike video cables. Buying a USB-C display means you can use a Thunderbolt 4 cable that’s much thinner than a DisplayPort or HDMI cable. ![]() TB4 can also support high-resolution displays up to 8K (7,680-x-4,320) or any USB-C monitor. That’s why we recommend Thunderbolt 4 cables even if you don’t yet own a TB4 computer. ![]()
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