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Bewinner 300W Power Supply Module for Mini-ITX and 1U Case PC PSU DC 12V Input 300W Computer Power Supply Module with 24Pin Connect/AUX/SATA Cable : Amazon.co.uk: Computers & Accessories
NEW Genuine Cisco Catalyst 4948 PWR-C49-300AC 300 Watt AC Power Supply
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HEC HEC-300AR-PT 300 Watt Power Supply | eBay
Generic Power Supply LPD2-300W 300W ATX Power Supply Unit / PSU | eBay