4.5 mm barrel 90 w ac Adapter

The Dell WTTK1 is an external 90 W AC adapter for powering compatible Dell systems. It is also identified as part 450-AKVN and connects through one 4.5 mm DC jack.

Dell says it can power a compatible laptop while charging its battery from a wall outlet. The model-specific compatibility list includes selected Inspiron and Latitude laptops, OptiPlex desktops, and Wyse all-in-one systems; it does not cover every Dell device.

Its listed dimensions are 52 mm wide, 32 mm deep and 128 mm high, with a weight of 320 g. It can serve as an external power unit for a compatible system at home or at a desk.

Package contents: one 2 m power cable.