First I think is molex microblade.

if u still have the original fan u can clip off the connector. noctua 40mm fan comes with connectors they call OmniJoin adapter for splicing 2 wires together without soldering. so u can just splice the original fan connector on to the noctua fan and plug it directly in.

if u don't have the original connector i think your only option would be to just solder the wires directly on to the pins.

aaron158 wrote on 2022-12-06, 07:33:

if u don't have the original connector i think your only option would be to just solder the wires directly on to the pins.

That, or the other way around. Remove the socket and solder a new one (or just a pins header)

First image:
Molex picoblade 0533980367
https://www.digikey.com/en/products/detail/mo … 3980367/3263219

You need:
Molex 0510210300
https://www.digikey.com/en/products/detail/mo … 10210300/242843

and the terminal 0500798000
https://www.digikey.com/en/products/detail/mo … 00798000/467822

Second image:
This is a Molex mini-spox and you need : 0050375023
https://www.digikey.com/en/products/detail/mo … 50375023/280418

and terminal : 0008701039
https://www.digikey.com/en/products/detail/mo … 08701039/765268

Wow, thank you so much!! I guess I have some options to think about..

1. Re-solder a new header on board, although probably will be space limited and might not fit a bigger modern standard.
2. Cut the old wire and the noctua wire and use the connector they include (didn't know that's what some of the included parts were for but thanks for that info!!).
3. Buy a new connector to fit the existing header on the PCB and wire it onto the Noctua.

Decisions Decisions now 😀

SDumas wrote on 2022-12-06, 09:48:

First image: Molex picoblade 0533980367 https://www.digikey.com/en/products/detail/mo … 3980367/3263219 […]
Show full quote

First image:
Molex picoblade 0533980367
https://www.digikey.com/en/products/detail/mo … 3980367/3263219

You need:
Molex 0510210300
https://www.digikey.com/en/products/detail/mo … 10210300/242843

and the terminal 0500798000
https://www.digikey.com/en/products/detail/mo … 00798000/467822

Second image:
This is a Molex mini-spox and you need : 0050375023
https://www.digikey.com/en/products/detail/mo … 50375023/280418

and terminal : 0008701039
https://www.digikey.com/en/products/detail/mo … 08701039/765268

So I have one more request.. what would this fan header be? Been searching digikey but not exactly the easiest thing to find.. hopefully someone already knows 😉

Might have just found it... does this look right?

https://www.digikey.com/en/products/detail/js … nc/PHR-3/527357

That is the one Digikey. TE Connectivity also makes these CT series connectors. Found on Farnell.