You will have to see if there are any SATA data and power cables in the machine already and if not you will need some - if it was a PCS machine all spare cables would've been provided anyway - those cables you showed are not the ones you need for itits not a pc specialist pc. i want to fit a SATA 2.5"
As above, we can't advise on competitor builds or self builds, you may want an open forum like Tom's hardwareiknow the port on the mother board. the issue is what power cable see pic above