An older case fan takes a four-pin peripheral power plug from the power supply, not a SATA power plug. Which connector is that?
Select an answer to reveal the explanation.
Short Explanation
You’re looking for the older four-pin power plug from the supply, not the L-shaped SATA power plug. That’s a Molex connector; SATA data, RJ45, and DisplayPort connectors don’t power the fan.
Full Explanation
Molex is the four-pin peripheral power connector used by older fans and drives. Since this fan takes a four-pin plug from the power supply rather than SATA power, Molex is the connector you need. A SATA data connector carries disk data; it is not a power plug for a fan. An RJ45 plug is for Ethernet, not a power lead from the supply. A DisplayPort plug carries video, and the power supply does not use it to feed case fans. Exam caveat: do not adapt a Molex plug onto a motherboard fan header if the fan is meant to connect to the supply; match the connector the fan actually has. For a practical check, connect the Molex plug and confirm the fan spins. Make sure you have not forced a SATA power plug onto it, and do not jumper the fan to a motherboard header it was not built for. Record the result on the ticket before closing it.