ขยายบทความเพิ่มเติม

Other characteristics

Data transfer rate at the inner zone ranges from 45 MB/s to 3.0 GB/s, while the transfer rate at the outer zone ranges from 74.0 MB/s to 111.4 MB/s.
Power consumption has become increasingly important, not just in mobile devices such as laptops but also in server and desktop markets.
One interesting development in this area is actively controlling the seek speed so that the head arrives at its destination only just in time to read the sector, rather than arriving as quickly as possible and then having to wait for the sector to come around.