To me that “JST” is a type of (Splice)! And I never met a splice that didn’t need more work than just, ... JST doesn’t put pin 1 markings at the same end across all their series: ...

The 4-pin pinout is valuable specifically on a SH-type connector, though, having it on a pin header doesn’t help as much. That said, extra ground pins are always cool to have! Report comment ...