At the time of buying this was the cheapest 512GB Solid state from a brand I recognize. It doesn't have as fast of write speeds as other drives that cost a bit more, but still much faster than a hard drive. These are great drives to speed up older computers without spending a ton of money. I used this one in a 2012 MacBook Pro, and it makes a HUGE difference in boot time and application responsiveness. If you want to get write speeds that max the speed of SATA3 you need to spend a bit more, but this is a great drive for the price!