Each ACER Aspire 5738Z power adaptor is 100% compatible with your original Laptop. Our ACER Aspire 5738Z AC adaptor is inbuilt with over-charge and over-discharge protection, over-current and short-circuit protection which guarantees safety of your ACER notebook while working or entertaining. 1.High temperature, high current impact, computer security,Quality laptop Charger customized for premium performance.