Pros: This hard drive runs very efficiently and quietly. It uses very little energy and for the price, this hard drive is fantastic.

Cons: For most old computers, you're going to have to get a molex power to SATA converter. It took me a while to find. Other than that, the hard drive is perfect for the average person.

Pros: none

Cons: makes every other program LAG. It's BEYOND terrible. I can't even do tasks without having to postpone what I am doing to wait for the programs to start responding again. Computer is MUCH faster without it.