I-O Data GA -RUSH6/PCI
A Voodoo Rush from I-O DATA. It has the name GA-RUSH6/PCI which indicates it's the PCI version with 6MB. This board is from Asia and quite uncommon in Europe or the USA. The layout of the PCB is nothing like the original Voodoo Rush (both single and dual-planar). It's much smaller and more efficient. It also looks more solid/modern than the original Voodoo Rush.
The board also has a 34 pin connector in which a SLI cable fits perfectly, however I don't think this is a SLI connector. The traces of this connector mostly run to the Alliance ProMotion AT25 chip indicating is doesn't have much to do with the 3dfx chips. I guess it's an ordinary feature (either VESA or VMI; Video Module Interface) connector. Technically the Voodoo Rush would be able to run in SLI as it's chipset is comparable with the Voodoo Graphics (SST-1).