Can I just check that this needs 3 USB 3.0 PLUS 1 USB 2.0.I would say your RAM will be fine. Should come with everything you need to plug and play. Main stumbling block for most will be the gfx card with the current lack of supply due to miners:
Recommended/Minimum Specs:
Lifted from the Oculus support site: https://support.oculus.com/help/oculus/170128916778795/
I.e 4 USB ports?
I thought it was 1 X USB 3.0 for the Headset, 1 X USB 3.0 for the sensor and 1 X USB 2.0 for the Xbox One controller?