Athena Computer Power AP-RRP4ATX6508 500W IPC Mini-Redundant

I've owned 2 of these. Most people will need to REMOVE the modules and then use a screwdriver to REMOVE the extra mounting strips of metal around the face of the supply. Otherwise, it's 1/4" too wide to fit most cases.Noise is very good. Almost can't hear it under low to medium loads.#1 was bought 4 years ago and has worked perfectly 24x7 for 4 years. #2 was bought 6 weeks ago and had a module become flaky after a week. Dealing with athena warranty is ok, but has been SLOOOOOW. Once an RMA approved (2-3 days), it still took a few more days to ship the module.For the record, the bad module did NOT cause the supply to go down. The module went offline and the alarm sounded.