Compare Power Supplies

Compare CORSAIR RM850x Shift 2025 vs Antec HCG-900

CORSAIR RM850x Shift 2025 and Antec HCG-900 are both power supplies with the same PCI-Express 6+2 Pin Connectors (4) and SATA Connectors (9). The main differences are in Wattage, Modular, PCI-Express 16 Pin 12VHPWR Connectors and EPS Connectors.

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CORSAIR RM850x Shift 2025

Antec HCG-900

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Brand

Corsair

Brand

Antec

Model

CP-9020299-NA
CP-9020299-EU
CP-9020299-UK
CP-9020299-AU

Model

HCG-900

Release Date

📅 November 2025

Release Date

-

* First availability for purchase, it may not correspond to the actual market launch date.

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Compatible PC parts

Graphics Cards ► Cases ►

Compatible PC parts

Graphics Cards ► Cases ►

Wattage

850 W

Wattage

900 W

Type

ATX

Type

ATX

Modular

Full Shifted

Modular

No

Efficiency

-

Efficiency

80+ Bronze

Output

-

Output

+3.3V@25A, +5V@25A, +12V1@40A, +12V2@40A, +12V3@40A, +12V4@40A, -12V@0.5A, +5VSB@3.0A

PCI-Express 16 Pin 12VHPWR Connectors

1

PCI-Express 16 Pin 12VHPWR Connectors

0

PCI-Express 12 Pin Connectors

0

PCI-Express 12 Pin Connectors

0

PCI-Express 6+2 Pin Connectors

4

PCI-Express 6+2 Pin Connectors

4

PCI-Express 6 Pin Connectors

0

PCI-Express 6 Pin Connectors

0

EPS Connectors

2

EPS Connectors

1

SATA Connectors

9

SATA Connectors

9

Molex Connectors

4

Molex Connectors

6

Length

160 mm

Length

180 mm

-

Options (1)

HCG-750
$239.03

Comparison and key differences summary

Reasons to buy the CORSAIR RM850x Shift 2025:

Fully modular power supply
+1 EPS connectors available

Reasons to buy the Antec HCG-900:

+50 Watts available
+2 Molex connectors available

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