Products Package Includes: 20 x AC Adapter 20 x Power Cord. Made of high quality aluminum alloy and plastic material, this AC Adapter PA-12 for Dell Inspiron 6400 6000 d600 1420 is extremely durable in use. Adopting advanced technology, this adapter is specially designed with built-in protection to protect your computer against unexpected power surge damages. Exquisite workmanship enables it to perform well on stability. With this power adapter, you can timely charge your laptop to keep it working all the time. It is compatible with universal brand and model. Have a try!…. 1. Low interference and noise. 2. Advanced technology and high quality. 3. High efficiency and reliability. 4. Short circuit and over voltage protection. 5. A durable and well-made laptop power adapter guarantees long term use. 6. Easy and safe to use. ;.