A-Trend Helios 3D Voodoo2 add-on accelerator card, which is based on the 3dfx Voodoo2 chipset and equipped with 12 MB of EDO DRAM. As there are no built-in 2D capabilities whatsoever, a pass-through cable connecting to the primary video card is used for normal operation, while the monitor plugs directly into the 3dfx accelerator board.
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