hard drive - What kind of connector is this (WD Elements external HD opened)

I opened my WD elements in the hope of finding a SATA disk with a removable SATA-USB adaptor, but unfortunately it appears the USB is soldered on the board, and there's no SATA connector. There is, however, a connector with 12 (6 pins x 2 rows) I can't recognize. There's also another connector on the left side, with only two pins. Does anybody know what it is?