AOpen AK77-333 - AGP (Accelerated Graphic Port) Expansion Slot

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The AK77-333 provides an AGP 2x4x slot. The AGP 2x4x is a bus interface targeted for high-performance 3D graphic. AGP
supports only memory read/write operation and single-master single-slave one-to-one only. AGP uses both rising and falling
edge of the 66MHz clock, for 2X AGP, the data transfer rate is 66MHz x 4bytes x 2 = 528MB/s. AGP is now moving to AGP 4x
mode, 66MHz x 4bytes x 4 = 1056MB/s. This AGP expansion slot is for 1.5V AGP card only.