DELL Latitude 2100 2110 2120 Red Bottom Base Cover W4JN2

Genuine Dell OEM replacement cover

This is an original red base bottom cover assembly built for the Dell Latitude 2100, 2110 and 2120 netbooks. It carries Dell part number W4JN2 and includes the battery latch shown in the photograph. The part arrives new and matches the factory finish for a direct swap. It is not a universal shell and will not fit other laptop families.

Passive thermal design with no moving parts

The cover forms the underside of the chassis and relies on its metal shielding and vent pattern to dissipate heat from internal components. No fan or active cooling is attached to this piece, so it adds no acoustic noise and draws no power. Airflow depends entirely on the system’s existing fan and heatsink arrangement. Builders who need integrated active cooling must look elsewhere.

Sustained load behaves like the original chassis

Under prolonged workloads the cover warms at the same rate as the factory part because the material, thickness and vent layout are identical. It does not throttle performance, nor does it introduce new hotspots beyond what the stock design permits. Long-term durability matches OEM expectations for a static structural component.