Elitegroup Z87H3-A4 (V1.0) - Manual (Page 29)

Chapter 2
25
Z87H3-A4 USER MANUAL
About mSATA Connector
Your motherboard features one Mini SATA slot, you can install a Mini SATA (MSATA)
card into it.
Refer to the illustration below for proper installation:
1 Insert a Mini SATA (MSATA) card into the MSATA Slot.
2 Lower the handle and tighten the screws.
The SATA6 connector will become unavailable when mSATA connector is
installed.