The ADT-Link R33G V1.4 PCI-E 5.0 Slot Power Measurement Adapter enables power monitoring of the PCI-E slot 12V, 3.3V, and 3.3VAUX power from an external PCI-E 6-pin source. The adapter is rated for PCI-E 5.0 (x16 lanes at Gen 5 speeds).

You can switch between external and slot power supply for the 12V, 3.3V, and 3.3VAUX rail by moving the jumpers from the left side to the right. In the left position, the power is supplied externally. In the right position, the power is supplied from the PCI-E slot. Note that the 12V is a double jumper and needs to be correctly positioned.