Review on 🔌 Molex Micro-Fit 3.0 Dual Row Receptacle Plug with Terminal Sockets - Pack of 10 Complete Set by Scott Rao

They are supplied without assembly instructions. The pins are square so alignment is important. There are no instructions for Revain, nor on the manufacturer's website. Socket contacts do not remain in the housing when plugged in. I have no idea if it's defective or misassembled and there's no way to find out. Note that they are too small to use with solder and really need to be crimped with the right tool.