The documentation says that it is SL type, but my google-fu is failing to find the exact slim 4 pin kind... What is that connector?
The Molex SL4 is on the Interface side, not on the BlackBox: https://www.molex.com/en-us/products/part-detail/50579404?display=pdf The BlackBox 4X side is a "Dupont" 4 pin: Amazon.com Per DirtyPCBs.com : Frequently called a DuPont connector, even in Chinese, but the current common version seems to be compatible with TC Connectivity's AMPMODU IV series.... It's the most bog standard thing in the market.