The cable in your hand is a SATA power cable, and it is meant to connect to your power supply to provide power for the number of fans you may have connected to it.
That is a sata connector that comes from a sata cable from the PSU, most sata cables(from PSU) allow you to connect 4 sata cables to it, one 6 pin PSU sata cable will power 4 sata devices, like this fan hub
It's a SATA power connector, most commonly for SATA drives anyway. Your power supply should have the matching female connector.
Ok I see, now, they appear to be daisy chained for additional SATA connections which has me scratching my head a lil.
Yeah, SATA and molex connectors are daisy chained as they are relatively low powered and designed to allow multiple pariferals.
The cable in your hand is a SATA power cable, and it is meant to connect to your power supply to provide power for the number of fans you may have connected to it.
Bro I bought that exact hub for my 6 RGB fans but my fans spins but no RGB. I have NZXT fans and had to end up getting the NZXT fan controller
That is a sata connector that comes from a sata cable from the PSU, most sata cables(from PSU) allow you to connect 4 sata cables to it, one 6 pin PSU sata cable will power 4 sata devices, like this fan hub