eSATAp is also known as eSATA/USB combo port. Its up to 5X faster than USB and compatible with all USB devices. eSATAp can be found in many notebooks. eSATA can also be found in NAS. As 99% of the machine have SATA, you simply use a Delock bracket to implement eSATAp. ZERO drivers installation. No need to tweak BIOS to AHCI or OS registry. Easy & economical. This makes eSATAp a true cross platform solution for MAC, PC & Linux. For more information visit: http://en.wikipedia.org/wiki/ESATAp