Mechanical Storage

IDE HDD
Integrated Drive Electronics (IDE), also referred to as PATA (Parallel ATA) in the embedded market is still the most common form of HDD. These are available in capacities ranging upwards from 80GB and also in 2.5” and 3.5” form factors. 

SATA HDD
Serial ATA (SATA) is an evolutionary replacement for the Parallel ATA physical storage interface. There are a growing number of devices that have inherited this latest technology because of the improved transfer rate. Available in capacities ranging from 40GB with extended service/temperature variants.