HPE ProLiant ML30 Gen10 Plus Maintenance And Service Manual page 176

The gray cable in the following diagram is the power fan-out cable.
Color Color Description Description
Orange 24-pin power supply cable
Blue 4-pin power supply cable
Gold Flexible Slot power supply sideband cable
Flexible Slot power fan-out cable connectors Flexible Slot power fan-out cable connectors
HPE ProLiant ML30 Gen10 Plus Server Maintenance and Service Guide 176