PCchips M921 Series User Manual page 7

VGA
 This mainboard includes a 4xAGP slot that provides eight
times the bandwidth of the original AGP specification.
AGP technology provides a direct connection between the
graphics sub-system and memory so that the graphics do
not have to compete for processor time with other devices
on the PCI bus.
AC 97 Audio Codec
 The AC 97 Audio codec is compliant with the AC 97 2.2
specification, and supports 18-bit ADC (Analog Digital
Converter) and DAC (Digital Analog Converter) resolution
as well as 18-bit stereo full-duplex codec with independent
and variable sampling rates. Further features include
support for four analog line-level stereo inputs.
Expansion Options
The mainboard comes with the following expansion options:
 Three 32-bit PCI slots capable of Ultra DMA bus
mastering with transfer rates of 33/66/100 MB/sec
 A 4xAGP slot
 A CNR (Communications and Networking Riser) slot
Onboard I/O Ports
The mainboard has a full set of I/O ports and connectors:
 Two PS/2 ports for mouse and keyboard
 Two serial ports
 One parallel port
 One MIDI/game port
 Six USB ports (two backpanel ports, onboard USB headers
providing four extra ports)
 Audio jacks for microphone, line-in and line-out
1: Introduction
3