First: praise for the so quick Amazon purchase and delivery. This is a power supply: simple TOPP. The installed fan runs very quietly. Since the device came with a very detailed user guide, one has no problems with the wiring of components. You simply can not do nothing wrong. I am thrilled by the price. I mean, you can determine as low buy no other "modular power supply of 750 watts." This modular Inter-Tech CPM 750-watt power supply, I would buy again.