I needed a couple of these for the 3D printer I was hooking up, I could buy somewhere like Digikey or Mouser. But overall they were cheaper considering the premium shipping. I bought a microfit kit elsewhere but they didn't have a 4 pin 2x2 so I got these. They were genuine and the same quality as the ones in my kit. You will need crimping pliers for this. I used IWISS IWS-2820M AWG 28-20 (B078WNZ9FW) crimping machines and everything went fine.
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