Avalue ENX-PNV - Manual (Page 26)

ENX-PNV
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1.7.8 SATA Data Connector (SATA1&2)
These connectors are for the SATA signal cables to link SATA hard disk drives.
SATA 1&2
1.7.9 SATA Power Connector (SATAPWR1)
This connector is for the provided SATA power cable. This power supply cable is designed
to fit this connector in only one orientation. Find the proper orientation and push down firmly
until the connector completely fits.
 This 2x2P connector is for SATA power supply, plugging-in an
ATX 2x2P power cable from PSU will damage this motherboard .