DXR2?? I haven't seen much of that card lately, mostly are now DXR3's. Didn't they stop manufacturing and support for that card?
They both have pass thru cables and works great with Nvidia cards. So far I tried using it (my DXR2 & DXR3 from my sisters pc) with TNT2, Geforce256, Geforce2 cards and works perfectly. It can make a good interpolation of VCD videos making it near DVD quality picture. (just my 2 cents)