is for some special sound cards with digital input. It's not used in 99% of all installations. Go for it.
Hello. I would like to expand the hard drive space on my computer by adding a 3TB SATA hard drive into my computer.
This is my first try inserting a new hard drive and I have never seen it being done before either. So far, I found my computer eligible to hold another hard drive i.e. it has the tray, the SATA port on the motherboard, and a spare power cable.
Now, I bought my hard drive and a SATA cable to go along with it, but I just realized I need a cable to convert the power port. Now, the youtube videos I've seen till now attach two wires. However, the hard drive I have has 3 ports.
I have taken a picture to make it easier to explain
I do know, that the one on the far right is for the power while the one next to it is the SATA port. However, I don't know what the one on the far left does.