Is the PSU Corsair RM850x Shift WH CP-9020274-NA a reliable power supply?

The Corsair RM850x Shift White power supply is described as reliable due to its use of 100% industrial-grade, 105°C-rated Japanese electrolytic capacitors and a ten-year warranty.

Does the PSU Corsair RM850x Shift WH CP-9020274-NA fit well in a Corsair 6500D case?

Both are ATX, so yes it will fit.

Questions & Answers: CORSAIR RMx Shift White Series, RM850x Shift White, 850 Watt, 80 PLUS GOLD, Fully Modular Power Suppl

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CORSAIR RMx Shift White Series, RM850x Shift White, 850 Watt, 80 PLUS GOLD, Fully Modular Power Suppl

Innovative positioning for the modular connections on the side of the PSU means easier access to connections and simpler, cleaner cable management.
Fully modular, CORSAIR Type 5 Gen 1 micro-fit PSU cables, so you only connect the cables your system needs while taking up less space.
A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance, low noise, and superior reliability.
Compliant with the ATX 3.0 power standard from Intel®, supporting the PCIe Gen 5 platform and resisting transient power spikes.
100% Industrial-grade, 105°C-rated Japanese electrolytic capacitors deliver unwavering power and reliability.
Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency.
80 PLUS Gold certified for up to 90% efficiency and Cybenetics-certified for lower power consumption, less noise, and cooler temperatures.
Supports Zero RPM fan mode for near-silent operation at low to medium loads.

$149^.99 –