ASUS ROG Strix 850G 80 PLUS Gold power supply, modular - 850 watts, black [NEAS-008] from WatercoolingUK
Corsair RM850 (2021), RM Series, 850 Watt 80 Plus Gold Fully Modular ATX Power Supply (Triple EPS12V Connectors, Low-Noise Operation, Zero RPM Fan Mode, 105°C Capacitors, Modern Standby) White : Amazon.co.uk: PC