AFAIK, the KEF KUBE 200 does not have a separate power supply, at least my KUBE 200 104/2 doesn't. OTOH, there appear to be versions of the KUBE 200 for various KEF speaker systems, so some KUBEs may have a separate power supply.
I saw a KEF Kube on another site and it had no power supply but in the rear picture of it I saw a jack in the back that looks like it accepts a 5 pin type of plug. It also said 102. Has anyone been able to confirm if KEF Kube does in fact require a power supply? Also if it says 102 on the back of it does that mean it is for the KEF 102 speaker line. Thanks