The card has an 8-pin PCIe auxiliary power connector. The card can operate without AUX power connected, however card power will be reduced, including the QSFP modules which will be limited to 3.5W.
Depending on your server or computer, an additional PCI Express auxiliary power cable or adapter might be needed. Consult your computer documentation for additional information.
Note: This 8-pin connector is not compatible
with an ATX12V/EPS12V power cable source. Ensure that the appropriate PCIe auxiliary power source is available, not an
ATX12V/EPS12V power source. For more details see Answer Record 72298.
For card installation and connecting the PCIe AUX power cable, see the Alveo UL3422 Installation Guide (UG1643).