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Thunderbolt is the brand name of a hardware interface for the connection of external peripherals to a computer.It was developed by Intel in collaboration with Apple. [7] [8] It was initially marketed under the name Light Peak, and first sold as part of an end-user product on 24 February 2011.
Intel is further detailing its next-gen Thunderbolt spec, which will support 80 Gbps transfers and up to 120 Gbps for video.
Thunderbolt 3 Gen 2 and Gen 3 and the USB4 Gen 2 and Gen 3 modes use very similar signaling. However, Thunderbolt 3 runs at slightly higher speeds, called legacy speeds, compared to rounded speeds of USB4. [34] It is driven slightly faster at 10.3125 Gbit/s (for Gen 2) and 20.625 Gbit/s (for Gen 3), as required by Thunderbolt specifications.
Not all of these devices actually offer Thunderbolt 4. Surface Laptop 5, Surface Pro 8-9 and Surface Laptop Studio are the only four devices with TB4/USB4 support. Devices older than these models are not supported on the Surface Thunderbolt 4 Dock, notably the Surface Book 2 (which has a USB-C port that does not support Thunderbolt connectivity ...
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[1] [2] The device was announced on October 12, 2022, alongside the Surface Pro 9 and Surface Studio 2+. [3] Key differences from its predecessor include newer Intel Alder Lake processors, support for Thunderbolt 4 , the removal of AMD configuration options, and the replacement of the Ice Blue fabric finish option with the Sage metal option.
The device is the first Surface Pro to include two USB-C ports with Thunderbolt 4. Like previous models, the built-in kickstand unfolds from 0 degrees to 165 degrees. [8] The 51.5 watt-hour battery offers system runtime of up to 16 hours.
Both devices no longer suffer from battery drain during heavy workloads, which was a problem occasionally observed with the last generation. Much like the previous generation, Microsoft has opted to forego Thunderbolt 3 due to overall security concerns with the protocol.