Sony VGX-XL2 User Guide (Computer Component) User Manual page 57

Below is the location of the main unit expansion connector.
Cables may be pulled out to open/close the cover if serial ATA cables with a
straight connectors are used. However, the use of serial ATA cables with a L
shaped connector areas is recommended.
7 Install the hard disk drive bay in the original location.
Note: Touching other parts when installing the hard disk drive bay can cause
damage.
VGX-XL2A Digital Living System 54