Asus P2Z-VM P2Z-VM User Manual - Page 94
ASUS P2Z-VM User's Manual, Ultra DMA/33, USB Universal Serial Bus
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VII. APPENDIX Glossary VII. APPENDIX Ultra DMA/33 Ultra DMA/33 is a new specification to improve IDE transfer rates. Unlike traditional PIO mode, which only uses the rising edge of IDE command signal to transfer data, the DMA/33 uses both rising edge and falling edge. Hence, the data transfer rate is double of the PIO mode 4 or DMA mode 2. (16.6MB/s x2 = 33MB/s). USB (Universal Serial Bus) A new 4-pin serial peripheral bus that allows plug and play computer peripherals such as keyboard, mouse, joystick, scanner, printer and modem/ISDN to be automatically configured when they are attached physically without having to install drivers or reboot. With USB, the traditional complex cables from back panel of your PC can be eliminated. 94 ASUS P2Z-VM User's Manual