Molex 2510 (PC fan connector): I feel like I'm going crazy trying to find these connectors on Digikey / Mouser (I can only find them on AliExpress). Seems like a super common
Wholesale 3amper 3pins Molex 2510 Awg 28 to 22 Connector Power Connector Contact Connector molex through hole header 2mm pin header From m.alibaba.com
2510 Connector Molex 2.5mm Pitch KK 3 Pin Electronics- %sitename
Molex 2510 2 Pin Connector for PCB (KR2540) - China 2 Pin Connector, Molex 2510 Connector | Made-in-China.com