MolexMicro-Fit 3.0 dual row (4 Circuits) Male & Female receptacle plug, w/Terminal sockets, (Pack of 5 Set)

I ordered these to make inexpensive 4-wire test cables for use with resistive temperature detectors, and I chose 24 AWG cables for good flexibility. I had some trouble with other connectors that were listed as suitable for 24 AWG wire, and I can usually get good results with crimped connectors, even if I'm not an expert. I chose these Micro-Fit connectors because they're a little smaller but still fine for my low-current application, and I immediately got good and consistent results. My first crimps were good, all 8 of 8, enough to complete two connectors so I could test them. The connections seemed mechanically sound and the wires felt firmly crimped in place. Electrically, the two mated connectors added roughly 4 milliOhms to the resistance of each circuit, and they all measured within 1 milliOhm of each other, which I found reassuring. These initial sample results are well within the Micro-Fit connector specs that I've found online and are certainly good enough for my purposes, so I'm comfortable thinking they will be quite robust.

Worked great for extending the cable for my Bambu Lab AMS Lite

They are compact. Wish I would have purchased a crimping tool to go along with it.

I have made many wire assemblies in my time, but these are some of the best and yet most difficult to do. There are a number of videos on You-tube, that will give you an idea on how to crimp the pins. I ran into a couple of problems, It is not obvious what the pin numbers are, as far as I can tell you can make any pin any number, just so you stay consistent. I found a diagram which made sense to me and used it. The second is which is the male socket, I found information on Molex.com and included a picture. Don't try these without the proper crimping tool, even with it you should purchase two packs of plugs if you plan on doing more than one. It took me 15 male pins before I got them correct (set of 4). You can also purchase just male or female pins.

The media could not be loaded. Was worried about it but it fit my sleep number bed finding wire was a little difficult to match ended up going to home depot and buying communication wire fixed bed love the way it was packaged very thoughtful all around happy

Needed a few of these for a 3d printer i was wiring up, i could have bought from somewhere like digikey or mouser. But these were cheaper overall when you factor prime shipping. I bought a microfit kit from elsewhere but it didn't have 4pin 2x2 so ended up grabbing these. They were genuine and same as the ones that came in my kit quality wise. You'll need some crimpers with these. I used IWISS IWS-2820M AWG 28-20 crimpers (B078WNZ9FW) and all went well.

There is absolutely no documentation on how to use these. And while trying to use them I completely butchered and ruined the wires of what I'm working on. This is complete fail of a product. Don't buy this!

These came connected, and I like that. it helps protect the connections when shipping in a bag. worth the money just wish I could find a complete set of more then just 5.