I have several NEC cards here from testing, from different manufacturers, but no difference is noticeable.
NEC chip card use D720100A or D710101 chips.
I have tried to use a USB PCI card with NEC D720100AGM chip in both a Mediator and a G-Rex without success. I do not know if the GM added to the NEC chip makes a difference though.
Comparing PCIInfo output from the USB card I have, and the PCIInfo output from a Spider USB card reveales that the main ID string is different between the two cards, so most likely this is the reason for it not to work. Would have been nice to have a 10 EURO USB card for my Mediator.
