Asus P7P55D PRO - Manual (Page 53)

ASUS P7P55D PRO 2-33
Chapter 2
3. JMicron ® JMB363 Serial ATA connectors (7-pin SATA_E1)
This connector is for a Serial ATA signal cable for a Serial ATA hard disk drive or optical
drive.
To enable hot-plugging, set the J-Micorn eSATA/PATA Controller item in the BIOS
setting to [AHCI Mode], and then reboot the system. See section 3.6.3 Onboard Device
Configuration for details.