Hauppauge NOVA-S and NOVA-S-PLUS cards

[softfoot]

I currently have a NOVA-S-PLUS card running under NPVR and am looking for a second PCI tuner.

The NOVA-S-PLUS card has served me well but I can find the older NOVA-S cards that are significantly cheaper :-)

Would NPVR support one of each in the same machine ??

I am not interested in the radio feature - only in recording FreeSat - is there any significan differences in
the h/w of the NOVA-S over the NOVA-S-PLUS ?? (eg issues/bugs/performance)

Looking at pics of the card the "voltage capability" slots in the PCI connector are different (not a problem in my system).

Anything I need to watch out for ??

TIA
Dave