Power supply unit CORSAIR RMx Shift Series RM1000x 1000W ATX 24-pin 80 PLUS Gold, black, 140mm fan

CORSAIR RMx Shift Series RM1000x is a 1000 W ATX power supply designed for desktop PCs that require reliable, continuous power. It delivers up to 1000 W with 80 PLUS Gold efficiency and includes a 24-pin ATX motherboard connector. The unit supports 100–240 V AC input (47–63 Hz), integrates a 140 mm fluid dynamic bearing fan with Zero RPM Mode for low-noise operation, and uses 105°C-rated Japanese electrolytic capacitors and a resonant LLC topology with DC-DC conversion for stable output.

Advantages

The PSU uses fully modular Type-5 side-mounted connectors to simplify cable routing and reduce clutter. It includes a native 12V-2x6 GPU power cable with a dual-color connector for visual confirmation of a secure GPU connection. Cybenetics Gold certification ensures up to about 89% overall efficiency, lower power consumption, cooler temperatures and reduced noise. Additional features include a manual fan speed control knob for direct fan override, an ultra-flexible debossed-PVC cable kit with low-profile combs for tidy builds, and compatibility with ATX 3.1 and PCIe 5.1 standards.

Suitable for

• High-performance gaming PCs with modern GPUs (NVIDIA GeForce RTX 50 Series and similar)
• Workstations requiring stable continuous power
• Custom builds where compact cable management is important
• Systems that benefit from low-noise operation and manual fan control

Key specifications

• Wattage: 1000 W
• Efficiency: 80 PLUS Gold, Cybenetics Gold certified (approx. up to 89% efficiency)
• Form factor / Connector: ATX with 24-pin motherboard connector
• Input: 100–240 V AC, 47–63 Hz
• Fan: 140 mm fluid dynamic bearing, Zero RPM Mode
• Cabling: Fully modular Type-5 connectors; native 12V-2x6 GPU cable; debossed-PVC cable kit included
• Capacitors: 105°C-rated Japanese electrolytic capacitors
• Standards: ATX 3.1 compliant, PCIe 5.1 ready
• Color: Black

How to use

Install the RM1000x in a compatible ATX case following standard PSU mounting and grounding procedures. Connect the 24-pin ATX cable to the motherboard and use the fully modular Type-5 connectors to attach only the required cables for CPU, GPU and drives. Use the included native 12V-2x6 GPU cable for compatible graphics cards and verify the dual-color connector shows a secure connection. Adjust the manual fan speed control knob if you need increased airflow; otherwise allow Zero RPM Mode to keep noise minimal at low to medium loads.

Recommendations

For reliable performance, place the PSU so its fan has adequate clearance and ensure case airflow supports heat exhaustion. Use only the supplied Type-5 modular cables and follow GPU manufacturer guidance when connecting the 12V-2x6 cable. Periodically check cable seating and dust buildup to maintain cooling efficiency and longevity.