Asus M2N-VM SE - Manual (Page 18)

1-6 Chapter 1: Product introduction
S/PDIF.digital.sound.ready. .
This motherboard provides convenient connectivity to external home theater audio
systems via coaxial and optical S/PDIF-out (SONY-PHILIPS Digital Interface) jack.
It allows to transfer digital audio without converting to analog format and keeps the
best signal quality. See pages1-33 for details.
ASUS.Q-Fan.2.technology. ...
The ASUS Q-Fan 2 technology smartly adjusts the speed of CPU, chassis, and
power fans according to the system loading to ensure quiet, cool, and efficient
operation.
ASUS.MP3-In™.. .
A convenient interface between computers and MP3 players, the ASUS MP3-In™
feature enables MP3 players to connect to PC speakers even when the PC power
is off, which means that users can enjoy the sound quality from PC speakers
without additional stereo equipment cost. (Refer to the ASUS MP3-In™ quick
installation guide for details.)