This is a Rotron Muffin Fan, model MU2A1, that is very quiet. This fits most 7" power amps & power supplies. It is used & in very good condition & fully guaranteed for 30 days. It is complete with chrome grill & power cord. Please go to comairrotron dot com & put in MU-2A1, & you'll see a whole spec sheet on this. Shipping is $7.00 for anywhere in the lower 48 states. International shipping will be thru the post office. Please go to usps dot com for their rates. Pay pal or cash is fine. You can call me at (602)

　　if you have any questions. Thanks.