Supermicro CSE-101i How loud is it?

[chilipepperz]

From the pics, I see a little fan. That makes me very scared to run this little case

the Supermicro CSE-101i has

• 1 x 6cm 4-pin high performance cooling fan(s)

SC101i | Mini-ITX | Chassis | Products | Super Micro Computer, Inc.

Is there any way to run that at a low speed?