I have an Inspiron 9400.
I am upgrading the HDD & not sure if both SATA (i presume I have this) & SATA II are compatable?
also does the buffer make that much difference in terms of performace?
most are 8mb, but the Hitachi has 16mb?
Thanks - lastly will i notice a performace difference using the SATA II or not as they seem to be quite a bit more expensive generally?