The ssd speeds are up to 550 MB/s read and 540 MB/s write and i've read some reviews on it and other users get around 400 MB/s read and write. the problem is the intel 6 series c200 (HM65 chipset) supports sata 3 6 gb/s, but i get the sata 2 3 gb/s speeds (200 MB/s read/135 MB/s write) i dont know why? Im having a bit of problem here, i bought mushkin enhanced chronos 120gb sata 3 6 gb/s SSD, so i installed it in my G53sw-a1, and installed a fresh windows 7 on it.