Corsair RM1000x Shift 1000W 80 Plus Gold ATX PSU

Corsair RM1000x Shift 1000W 80 Plus Gold ATX PSU

Brand: Corsair | Category: UPS & Power Protection

SKU: CORS-CP9020253NA | Part #: CP-9020253-NA | MPN: CP-9020253-NA

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About the Corsair RM1000x Shift 1000W 80 Plus Gold ATX PSU

The Corsair RM1000x Shift is a 1000W fully modular ATX power supply distinguished by its side-mounted modular panel, which relocates all cable connectors to the side of the unit rather than the front face. This design significantly reduces cable management complexity inside space-constrained cases, allowing installers to route modular cables along the chassis floor or side wall without sharp bends that can impede airflow or stress connectors. The unit holds an 80 Plus Gold efficiency certification, delivering up to 90% efficiency at 50% load under 115V AC input, and operates on a single +12V rail architecture that simplifies power delivery calculations for high-TDP components common in professional workstations.

Built on a fully modular platform, the RM1000x Shift allows technicians to attach only the cables required for a given system configuration, reducing clutter and improving thermal performance within the chassis. The unit incorporates Corsair's Zero RPM fan mode, which keeps the 135mm rifle-bearing fan completely stopped under low-to-moderate load conditions, extending fan service life and eliminating noise in thermally stable environments. The ATX 3.0 native specification support, combined with a dedicated 12VHPWR connector, makes this unit directly compatible with current-generation PCIe 5.0 graphics cards without the use of adapter cables, a meaningful reliability consideration for GPU-accelerated workstation deployments.

The RM1000x Shift carries an Intel ATX 3.0 specification compliance, supports universal AC input ranging from 100V to 240V at 50–60Hz, and includes comprehensive protection circuitry covering over-voltage, under-voltage, over-current, over-power, over-temperature, and short-circuit conditions. These protections reduce the risk of cascading hardware failures in continuously running workstations and editing suites. The unit is well-suited for enterprise workstation refresh programs where standardized, high-efficiency power supplies are being deployed across a fleet of graphics-intensive or compute-intensive systems.

Ideal for

  • Workstation fleet refresh deployments requiring standardized 1000W Gold-efficiency PSUs with simplified modular cable management in mid-tower and full-tower chassis
  • GPU-accelerated workstations running PCIe 5.0 graphics cards, leveraging the native 12VHPWR connector to eliminate adapter-related power delivery risks
  • Video production and 3D rendering workstations with high sustained GPU and CPU loads, where single-rail +12V architecture ensures stable power delivery without per-rail current limits
  • Noise-sensitive professional environments such as recording studios or broadcast editing suites, where Zero RPM fan mode eliminates PSU fan noise during moderate workloads
  • Space-constrained rack-adjacent workstation builds where side-mounted modular connectors allow cleaner horizontal cable routing and improved chassis airflow
  • Enterprise IT environments operating multi-region deployments, benefiting from the universal 100–240V AC input range that removes the need for region-specific power supply SKUs

Technical specifications

ManufacturerCorsair
Manufacturer Part NumberCP-9020253-NA
ModelRM1000x Shift
Rated Output Power1000W
Efficiency Certification80 Plus Gold
ATX SpecificationATX 3.0
Modular DesignFully modular with side-mounted connector panel
AC Input Voltage Range100–240V AC
AC Input Frequency50–60 Hz
Power Factor CorrectionActive PFC
+12V Rail ArchitectureSingle rail
Fan Size135mm rifle-bearing fan
Fan ModeZero RPM mode (fan off at low-to-moderate load)
Native GPU Power Connector12VHPWR (PCIe 5.0 compatible)
Form FactorATX
Protection FeaturesOVP, UVP, OCP, OPP, OTP, SCP
Dimensions200mm x 150mm x 86mm
ColorBlack

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Technical Specifications

BrandCorsair
CategoryUPS & Power Protection
SKUCORS-CP9020253NA
Part NumberCP-9020253-NA
ConditionNew
Manufacturer Part NumberCP-9020253-NA
ModelRM1000x Shift
Rated Output Power1000W
Efficiency Certification80 Plus Gold
ATX SpecificationATX 3.0
Modular DesignFully modular with side-mounted connector panel
AC Input Voltage Range100–240V AC
AC Input Frequency50–60 Hz
Power Factor CorrectionActive PFC
+12V Rail ArchitectureSingle rail
Fan Size135mm rifle-bearing fan
Fan ModeZero RPM mode (fan off at low-to-moderate load)
Native GPU Power Connector12VHPWR (PCIe 5.0 compatible)
Form FactorATX
Protection FeaturesOVP, UVP, OCP, OPP, OTP, SCP
Dimensions200mm x 150mm x 86mm
ColorBlack