Amazon.com: Seasonic PRIME FANLESS PX-450, 450W , Full Modular, ATX12V & EPS12V, True Fanless Design, Perfect Power Supply for situations that demand silence from the equipment. : Electronics
Seasonic PPRIME FANLESS TX-700 Power Supply Rated 700W ATX 12V 100-240V PFC 140mm Gaming PC Power Supply For Intel AMD Computer - AliExpress
proSilence Fanless PSU
Seasonic 520W Platinum Fanless PSU - computer parts - by owner - electronics sale - craigslist