DELL Thunderbolt Dock TB16 240W 452-BCNU

Dell TB16 Dock — Core Function

This Dell Thunderbolt Dock TB16 delivers a 240W adapter and a single Thunderbolt 3 connection to expand a compatible laptop. It adds Gigabit Ethernet, audio output, and multiple USB ports for peripherals. The unit supports up to three external displays at 60Hz, including one 5K panel at 5120x2880.

Suits Multi-Screen Users — Not for High-Watt Laptops

Professionals driving two 4K monitors or a single 5K display from a supported Latitude, Precision or XPS model gain a tidy single-cable desk setup. The three USB 3.0 ports (one with Power Share) and two USB 2.0 ports handle keyboards, mice and drives. Laptops needing more than 130W for full performance must keep their own charger connected, so buyers whose machines draw above that threshold should look elsewhere.

130W Host-Power Threshold Decides Fit

The critical specification is the 130W limit for host charging over the Thunderbolt 3 link. Systems rated above this level will not charge or run at peak speed through the dock alone. Check the laptop’s rated input power before purchase; if it exceeds 130W the dock still provides video and data but cannot replace the original power brick.