Stay Out, Warns Apple
Even the screws that hold the MacBook Air together are proprietary. To get through the 5-point Security Torx screws, iFixit had to file down a couple of flathead screwdrivers. Normal 6-point Torx screws hold down the inside of the little laptop.
Like many of the MacBook Air's internal components, the RAM is soldered to the logic board and not user-replaceable, so whatever amount you choose at purchase is what you'll live with throughout the MacBook Air's life. iFixit recommends getting 4 GB for that reason.
Decent speakers
The MacBook Air's stereo speakers pump out "mad wattage," iFixit says - probably one or two watts.
Why it's so thin
One chance for hacking
The low-end MacBook Air's 64 GB solid state drive is screwed to the logic board with T5 Torx screws and can be removed with relative ease. And it uses a mini-SATA connector, presenting an opportunity for hackers to fit more storage inside, but only if it can fit within the Air's 0.68-inch frame.
In Video: New MacBook Air Models Are Lighter, But Still Expensive