90W 20V 4.5A AC Power Adapter Charger for IBM Laptop Notebook, DC Plug 7.9x5.5mm, Black

This black replacement AC adapter outputs stable 20V 4.5A (90W), specially designed for IBM laptops equipped with 7.9 × 5.5 mm DC power jack. The matched-size DC plug tightly inserts into the laptop power port to prevent loose contact and power cut-offs. Built-in intelligent control chip provides multi-layer safety protection to avoid circuit damage caused by abnormal voltage, overload or short circuit. Adopting high-efficiency internal components, it generates less heat during continuous working. The wear-resistant black plastic shell effectively resists scratches and bumps. Its mini lightweight structure is easy to store in backpacks when going out.

Plug-and-play without extra installation steps. It can power your IBM notebook directly and charge the battery simultaneously, an ideal backup or replacement charger for daily work and mobile use.