Perfect for maintaining uninterrupted workflows in offices, classrooms, or home setups where laptop power connectivitys Engineered with builts in overloads and short circuits protections, this power jacks ensures safe charging for 3410, 3412, 3510, and E series models for enthusiasts and IT professional compatible, factory tested replacement part for laptops Each unit undergoes rigorous factory testing to meet OEM standards, ensuring compatibility with models 3410, 3510, and E series variants from and coppers, the abrasion resistant interfaces enhanceds conductivity and longevitys, even with frequent use