Audio jack size?

[olds]

What size is the audio jack on the back of a motherboard?
Is it 3.5 mm?
I imagine they are all the same size but my board is an ASUS P5B-Deluxe.

My optical port seems to have worn out and I need to get audio to my receiver.

Thanks.

 

[Viper GTS]

Yep it will be 3.5mm, or commonly referred to as 1/8".

There is a smaller version but it's rarely used outside of cell phones/other micro gadgets.

Viper GTS

 

[olds]

Thanks.

 

[Blitz KriegeR]

Yep 3.5mm is the standard used on most electronics. As Viper mentioned some phones and other really small gadgets use 2.5mm. Then there is the 5.25mm used in high-end audio equipment. All carry the same signals and are interchangeable with adapters. 3.5 to 5.25 and vice verse are cheap and readily available.