Verified November 3, 2026

Thunderbolt 4

Thunderbolt 4 is useful for compact travel desks where one USB-C-shaped connection may need to handle charging, storage, peripherals, and multiple displays. It is especially relevant when comparing docks and laptops that must reliably support higher-bandwidth workflows than basic USB-C accessories.

Entry type: High-bandwidth USB-C docking, display, and charging reference

Specifications and details

Reference TypeConnectivity standard
Primary ConnectionUSB-C
Power Output100 W
Display CapabilityUp to two 4K 60 Hz displays or one 8K 60 Hz display
Pass-Through ChargingYes
Travel RoleSingle-cable dock and display expansion
Relevant Power Level100 W
Applies ToLaptop or Tablet; Hub or Dock; Portable Monitor; Cable or Adapter; Peripheral
Battery Air Travel StatusNot Battery-Related
Power DirectionBidirectional; Source Output; Device Input
Data Bandwidth40 Gbps
Required Cable CapabilityThunderbolt-certified required for full Thunderbolt 4 behavior; USB devices and cables fall back to the lowest common capability

Last verified: November 3, 2026

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