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Corsair TBT100 Thunderbolt 3 Dock – 85W Charging, Dual 4k 60Hz Support, 2X HDMI, 40Gb/s ,USB-C Gen 2 (15W) x2, USB-A 3.1 (7.5W) x2, Gigabit Ethernet – for Mac and PC laptops

TLDR Review: Corsair TBT100 Thunderbolt 3 Dock

Item: Corsair TBT100 Thunderbolt 3 Dock
Author: ShopSavvy

By ShopSavvy Team

Published: February 17th, 2026

Pros

•Supports dual 4K 60Hz output via two identical HDMI 2.0 ports, perfect for high refresh rate monitors or professional setups.
•Provides solid 85W power delivery, enough to keep a 1nch MacBook Pro charged, enabling a true single-cable workspace.
•Includes a convenient power button on the dock to toggle power and allow the laptop to sleep without physically unplugging cables.
•Reliable video output to at least one external monitor without dropouts once proper cables are in use.
•Offers multiple ports (2x US Gen 2, 2x USB-A 3.1, Gigabit Ethernet) for connecting various peripherals efficiently.
•Works well as a central hub for remote work or productivity setups, streamlining device management.
•Maintains consistent performance over time, with no major stability issues reported when used correctly.
•Handles a 1440p display at 144Hz smoothly, showing capability for higher refresh rates beyond 60Hz.
•USB and Ethernet functions generally operate as expected with compatible setups.

Cons

•Strict cable compatibility: only specific Thunderbolt 3/4 US to HDMI cables work; standard USB-C to HDMI cables frequently fail to connect external monitors.
•Power button LED indicator is dim and easy to cover with fingers, and the power toggle requires a econd press, which can be unintuitive.
•The dock uses a large, bulky power adapter with a barrel plug and a cable disconnect point, which adds clutter and reduces convenience.
•Ethernet connection is unreliable for some users, frequently dropping within about 45 seconds of use via the dock (though direct laptop connections remain stable).
•Some users experienced defective units confirmed by customer support, mainly relating to power and network issues.
•The dock may not recognize the included Thunderbolt cable on certain machines (e.g., 2019 MacBook Pro), requiring users to purchase additional compatible cables.
•Does not fully deliver on charging for some compatible laptops despite the manufacturer’s claim, causing frustration.
•The dock design could benefit from being smaller and lighter, with an updated US power input instead of the large adapter.
•Slight heating during use, which while not excessive, may concern some users.

Bottom Line

The Corsair TBT100 Thunderbolt 3 Dock delivers excellent video performance, solid power delivery, and a versatile port selection for Mac and PC users needing dual 4K monitors and a streamlined workstation. However, it demands exact cable compatibility and has some reliability issues with Ethernet and charging on certain machines, which could be a dealbreaker if you want a truly plug-and-play experience. If you frequently rely on wired Ethernet or want a simpler power setup, you might want to compare alternatives or verify cable compatibility carefully before committing. If you value stable Ethernet connection and easier cable compatibility, exploring other docks with USB-C power input or less finicky video support might be worth your while.