10 Pairs 1.25 mm JST 2 Pin Micro Electrical Male and Female Connector Plug with 80mm Wire Cables

I needed to change a fan's connectors to JST 1.25mm from 2.54mm, so I got these. They turned out great; I was able to solder the wires to the fan and it worked like a charm. I'm still a newbie at electronics, but I'm glad I was able to get done with what I needed. I can't wait to do more things with these!

Have not used this product yet. The connectors were smaller than I thought they would be. My ruler shows 1.25 millimeters to be about an half an inch. These are a lot smaller. However, that does not mean they will not function properly and will be installing these on LED's very soon.

They all worked and multimeter tested perfectly. They were simple to add for installation of replacement parts, without the inconvenience crimping pins and making connectors. So value and quality of performance is without question.

Good quality adapters

Fits correctly with 12VDC mini fans. Polarity colors on wires correctly matched.

You spend half your time just trying to get the things to connect to each other. These three pin connectors--both male and female--don't go together really at all. You end up forcing the connections so often, but so often that doesn't work. You're not supposed to have to use such force around delicate electronics anyway. Then, because these things are so poorly made, you end up throwing so many into the trash. The connections you do end up making can at times prove somewhat untrustworthy 'cause you can jiggle the connectors around a bit at times and their connection is lost.Don't use these without testing them first. You have to test each and every one, to make sure they fit together and that their electrical connections are good. You might have to go through a fair amount just to find connectors that are solid enough to use in your testing rig. Also, if you buy these, plan to buy a few packs extra to compensate for those you'll throw away.I bought one pack earlier and those at least worked. I had a hard time connecting the things together then, but the electrical connections worked for the most part. This pack, my second, is intolerable.I'm going to have to rip out some of the connectors I already made in my model; I'm going to have to throw all the adapters I just made like y adapters and also extensions into the garbage.I've used hundreds of connectors like this, the two-pin variation from a different brand, and those offered absolutely no problem.Avoid these, at least the three-pin variation.

Male and female plug in wire connectors. For whatever you need them for they worked

My fault for not paying enough attention to the size. But also I had a high failure rate. I did not get continuity through about a third of them.I wound up buying a larger connector and had no continuity issues.