The 45W MagSafe Power Adapter for MacBook Air from Apple can act as a spare or replacement power adapter for your MacBook Air. Identical to the adapter that is included with your computer, this is a great accessory to have if you use your MacBook both at home and in the office. There is no need to transport and crawl under your desk to plug your laptop in each time you change locations; simply leave an adapter plugged in at home and at your workplace and you will have easy access to power in either environment. Whether you would simply like the convenience of having an extra power adapter or if you have lost your original one, this is a great accessory for MacBook Air users to have on hand.
