Power supplies / Compare
CORSAIR RM1000x SHIFT (2025) vs Super Flower Leadex VIII Platinum PRO 1000W
Product A: CORSAIR
52 of 66 known
Lian Li SX Platinum 1000W
be quiet! Dark Power 14 1000W
Fractal Design Ion 3 Gold 1000W
Super Flower Zillion FP 1000W
CORSAIR RM850x SHIFT (2025)
MSI MAG A1000PLS PCIE5
be quiet! Pure Power 13 M 1000W
MSI MAG A1000GLS PCIE5
ASRock PRO-850G
MSI MPG A1250GS PCIE5 II
Montech Century II 1050W
be quiet! Pure Power 13 M 1200W
Change CORSAIR RM1000x SHIFT (2025)
Compare the Super Flower Leadex VIII Platinum PRO 1000W with
Lian Li SX Platinum 1000W
be quiet! Dark Power 14 1000W
Fractal Design Ion 3 Gold 1000W
Super Flower Zillion FP 1000W
CORSAIR RM850x SHIFT (2025)
MSI MAG A1000PLS PCIE5
be quiet! Pure Power 13 M 1000W
MSI MAG A1000GLS PCIE5
ASRock PRO-850G
MSI MPG A1250GS PCIE5 II
Montech Century II 1050W
be quiet! Pure Power 13 M 1200WProduct B: Super Flower
Leadex VIII Platinum PRO 1000W
46 of 66 known
be quiet! Dark Power 14 1000W
be quiet! Pure Power 13 M 1200W
CORSAIR RM850x SHIFT (2025)
Lian Li SX Platinum 1000W
Fractal Design Ion 3 Gold 1000W
Super Flower Zillion FP 1000W
be quiet! Pure Power 13 M 850W
MSI MAG A1000PLS PCIE5
be quiet! Pure Power 13 M 1000W
MSI MAG A1000GLS PCIE5
ASRock PRO-850G
MSI MPG A1250GS PCIE5 II
Change Super Flower Leadex VIII Platinum PRO 1000W
Compare the CORSAIR RM1000x SHIFT (2025) with
be quiet! Dark Power 14 1000W
be quiet! Pure Power 13 M 1200W
CORSAIR RM850x SHIFT (2025)
Lian Li SX Platinum 1000W
Fractal Design Ion 3 Gold 1000W
Super Flower Zillion FP 1000W
be quiet! Pure Power 13 M 850W
MSI MAG A1000PLS PCIE5
be quiet! Pure Power 13 M 1000W
MSI MAG A1000GLS PCIE5
ASRock PRO-850G
MSI MPG A1250GS PCIE5 II28 of 58 fields differ
- 22 different values
- 6 known for one only
- 21 the same
- 9 missing for both
Biggest differences
Each bar uses the scale of all 66 power supplies.
- SATA power connectorsA: 12B: 8CORSAIR has 4 more.
- Average noiseLower is betterA: 20.11dB(A)B: 27.89dB(A)CORSAIR is 7.78 dB(A) lower.
- Hold-up timeA: 24.8msB: 22.2msCORSAIR is 2.6 ms higher.
Size, drawn to scale
Front and side.
- ACORSAIR: 150 × 86 mm
- BSuper Flower: 150 × 86 mm
All 66 fields
Every value links to where we found it.


General
5 of 12 differ
Series
Model numbers
CP-9020300-NA, CP-9020300-EU, CP-9020300-UK1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026SKU CP-9020300-NA. The power table prints model RPS0222 and part no. 75-006528, which are not stored as model numbers.9Retailer pageamazon.com/dp/B0FPG9K6ZDRead 15 October 2026Item details: Model Number CP-9020300-NA.10Retailer pagepood.datafox.ee/corsair-2025-rmx-shift-srs-rm1000x-psuRead 15 October 2026Product code CP-9020300-EU.11Retailer pagescan.co.uk/products/1000w-corsair-rm1000x-shift-fully-modular-cybenetics-gold-pcie-51-single-rail-833a-140mm-fanRead 15 October 2026Scan lists CP-9020300-UK.
SF-1000F14SP, SF-1000F14SP(WH), SF-1000F14SP(T) BK1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Technical Specifications row Model No. prints SF-1000F14SP(T) for the 1000W. The Power Output table prints SF-1000F14SP. The (T) form is the maker's Japan listing name, see the Amazon Japan source.3Retailer pageamazon.com/dp/B0GCRFR47KRead 15 October 2026Item details: Model Number and Mfr Part Number SF-1000F14SP, Model Name Leadex VIII Platinum PRO.4Retailer pageamazon.com/dp/B0GCST94MBRead 15 October 2026Item details: Model Number and Mfr Part Number SF-1000F14SP(WH).5Retailer pageamazon.co.jp/dp/B0G5XDF7TTRead 15 October 2026Item details: Model Number and Mfr Part Number SF-1000F14SP(T) BK, Model Name LEADEX VIII PLATINUM PRO 1000W BK.
GTIN / EAN
840440483007, 840440485056, 8404404830219Retailer pageamazon.com/dp/B0FPG9K6ZDRead 15 October 2026Item details: UPC 840440483007 and Mfr Part Number CP-9020300-NA. The check digit is valid.10Retailer pagepood.datafox.ee/corsair-2025-rmx-shift-srs-rm1000x-psuRead 15 October 2026Datafox (Estonia) lists EAN 840440485056 for CP-9020300-EU. Comparateur-gamer.fr (France) lists the same EAN and part number. The check digit is valid.11Retailer pagescan.co.uk/products/1000w-corsair-rm1000x-shift-fully-modular-cybenetics-gold-pcie-51-single-rail-833a-140mm-fanRead 15 October 2026Scan lists manufacturer code CP-9020300-UK with GTIN 840440483021. The check digit is valid. This is the only source for the UK code.
Not available
Announced
Not available
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
€204.94Press articlepcgameshardware.de/Netzteil-Hardware-219902/News/Corsait-RMx-Shift-Gen-2-1485838Read 15 October 2026PCGH names a launch UVP of 204,90 euros for the RM1000x Shift (169,90 euros for the RM850x and 154,90 euros for the RM750x). The archived Corsair German page shows the same 204,90 EUR including VAT. No US dollar launch price is stored, because the archived Corsair US page shows $229.99 on 2025-11-05, Hardware Busters gives an MSRP of $210 excluding VAT and the current Corsair US page prints an original price of $209.99.5Maker product pageweb.archive.org/web/20251119233232/https://www.corsair.com/de/de/p/psu/cp-9020300-eu/rm1000x-shift-fully-modular-atx-power-supply-eu-cp-9020300-euRead 15 October 2026Archived copy of the Corsair German page for CP-9020300-EU from 2025-11-19, two weeks after launch. It shows a price of 204,90 EUR with no discount, including VAT, and a backorder notice.
Not available
Markets
Not available
Not available
Colours
Black1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026The product is the black unit. Amazon US titles it Black.9Retailer pageamazon.com/dp/B0FPG9K6ZDRead 15 October 2026Title: CORSAIR RM1000x Shift ATX 3.1 PCIe 5.1 Ready 1000W Power Supply - Black, 2025, NA.
Black, White1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026The product page has a COLOR selector. Black and white are confirmed by the Amazon listings.3Retailer pageamazon.com/dp/B0GCRFR47KRead 15 October 2026Title: Super Flower Leadex VIII Platinum PRO 1000W Power Supply, ATX 3.1, Black. The style list also offers the white 1000W model.4Retailer pageamazon.com/dp/B0GCST94MBRead 15 October 2026Title: Super Flower Leadex VIII Platinum PRO 1000W Power Supply, ATX 3.1, White. The bullets repeat the maker features: 120mm Ultra Silent Fluid Dynamic Bearing Fan and full modular braided texture ribbon cables.5Retailer pageamazon.co.jp/dp/B0G5XDF7TTRead 15 October 2026Title: LEADEX VIII PLATINUM PRO 1000W BK, Black.
Form factor
ATX version
ATX 3.11Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: ATX 3.1-certified and PCIe 5.1 compliant. Tech Specs: ATX12V Version 3.1.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Meeting ATX 3.1 and PCIe 5.1 standards.
PCIe CEM version
PCIe 5.11Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: ATX 3.1-certified and PCIe 5.1 compliant.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Meeting ATX 3.1 and PCIe 5.1 standards.
Modular cables
Fully modular1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: Fully modular, Type-5 connectors.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Fully modular, so builders can use only the cables they need.
Built by (OEM)
Great Wall6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026DUT Information: OEM/ODM Great Wall. Parts description: Manufacturer (OEM) Great Wall.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Manufacturer (OEM) Great Wall.
Power
3 of 9 differ
Rated continuous power
Full power rated up to
Not available
Not available
12V rail design
Single rail6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Power Specifications: one +12V column with 83.3 A and 1000 W.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Number of 12V rails 1.
Single rail1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026The Power Output table for SF-1000F14SP has one +12V column with 83.3A and 999.6W.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Power Specifications: one +12V column with 83.3 A and 999.6 W.
+12V max current
83.3A1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Power table: +12V 83.3A, 1000W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x power table, model RPS0222, part no. 75-006528: +12V 83.3A, 1000W.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Power Specifications table: +12V 83.3 A, 1000 W.
+12V max power
1,000W1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Power table: +12V 83.3A with 1000W listed beside the row. The Cybenetics report also prints 1000 W for +12V.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x power table: +12V 83.3A, 1000W.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Power Specifications table: +12V 1000 W.
+3.3V and +5V combined power
120W1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Power table: +3.3V 20A and +5V 20A with one 120W cell. The page layout does not tie the 120W to one rail. The Cybenetics report and Hardware Busters print it as the combined +3.3V and +5V power.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x power table: +3.3V 20A, +5V 20A and one 120W cell.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Power Specifications table: one merged 120 W cell for 3.3V and 5V, 20 A each.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Power 5V + 3.3V 120W.
+5V standby current
3A1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Power table: +5VSB 3A, 15W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x power table: +5Vsb 3A, 15W.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Power Specifications table: 5VSB 3 A, 15 W.
AC input voltage
Lowest100Highest240V1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Power table: AC input 100V-240V, input current 12A-6.5A, 47Hz-63Hz. A 200V-240V, 10A rating applies to Korea and India only.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x power table: AC input 100V-240V a.c., input current 12A-6A, 47Hz-63Hz.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Manufacturer-provided information: 100-240 Vrms, 6-12 A, 47-63 Hz.
Lowest100Highest240V1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Spec table: AC Input 100V~240V. Power Output table: 100-240V~ 15A 60Hz/50Hz.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Manufacturer-provided information: 100-240 Vrms, 15 A, 50-60 Hz.
Alternative low power mode (ALPM)
Yes1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Tech Specs: Modern Standby Yes. The Cybenetics report ticks ALPM compatible.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked. ATX v3.1 PSU Power Excursion is checked.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Alternative Low Power Mode support yes.
Yes1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Overview: Modern Standby Compatible. The Cybenetics report also ticks ALPM compatible.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Temperature and Compliance Info: ALPM compatible ticked. ATX v3.1 PSU Power Excursion ticked.
Certifications
2 of 5 differ
80 PLUS rating
Not available
Not available
Cybenetics efficiency at 115V
Cybenetics Platinum1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Spec table: Cybenetics Efficiency Level Platinum, overall efficiency 89% to under 91% at 115V. The overview image on the page shows the Cybenetics Platinum badges for 115V and 230V and the LAMBDA A- badges for 115V and 230V, which match report 2912.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Report 25PS2912A, Lab ID SF10002912, serial S2507199001, received Jul 8, 2025, tested Aug 8, 2025, issued Aug 19, 2025. The model name is Leadex VIII 1000W with no model number. The certificate shows the ETA Platinum badge at 115V. The cable list matches the maker's cable tab for the PRO 1000W. A second report, 2962 for SF-1000F14SP(E), has a different fan and cable set and is not used.
Cybenetics efficiency at 230V
Cybenetics Platinum6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026The Cybenetics database shows ETA Platinum at 230V.
Cybenetics Platinum1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Spec table: Cybenetics Platinum, overall efficiency 91% to under 93% at 230V.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026The certificate shows the ETA Platinum badge at 230V.
Cybenetics noise at 115V
A-1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026The Cybenetics Noise Level cell of the spec table is empty. The overview image on the page shows the LAMBDA A- badge for 115V.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026The certificate shows the LAMBDA A- badge at 115V. Average noise of 27.89 dBA is in the A- band.
Cybenetics noise at 230V
A-1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026The overview image on the page shows the LAMBDA A- badge for 230V.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026The certificate shows the LAMBDA A- badge at 230V. Average noise at 230V is 26.24 dBA.
Measured
10 of 10 differ
Average efficiency at 115V (measured)
Average efficiency at 230V (measured)
Light-load efficiency at 115V (measured)
Average power factor at 115V (measured)
Average noise at 115V (measured)
Noise at full load at 115V (measured)
Standby power with no load at 115V (measured)
Hold-up time (measured)
12V ripple at full load (measured)
12V load regulation (measured)
Cables and connectors
3 of 7 differ
Cables
ACORSAIR RM1000x SHIFT (2025)
| Connector | Connectors | Cables | Length to first plug (mm) | Wire gauge | Rated power (W) |
|---|---|---|---|---|---|
| ATX 24-pin (20+4) | 1 | 1 | 610 | 16-20AWG | Not available |
| CPU 8-pin (EPS, 4+4) | 2 | 2 | 650 | 18AWG | Not available |
| PCIe 8-pin (6+2) | 4 | 3 | 650 | 18AWG | Not available |
| 12V-2x6 | 1 | 1 | 650 | Not available | 600 |
| SATA power | 12 | 4 | 500 | 18AWG | Not available |
| 4-pin Molex | 4 | 1 | 450 | 18AWG | Not available |
Source1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Cable listing: 1 ATX 24-pin 610 mm, 2 EPS 4+4-pin 650 mm, 2 PCIe 8-pin (6+2-pin) 650 mm, 1 90-degree 12V-2x6 to 600W 12V-2x6 (12+4-pin) 650 mm, 1 600W 90-degree 12V-2x6 to 2x 8-pin PCIe (6+2-pin) cable with 2 plugs 650 mm, 4 SATA cables with 3 plugs each (500 mm to the first plug, 100 mm spacing, 700 mm total) and 1 PATA cable with 4 plugs (450 mm to the first plug, 100 mm spacing, 750 mm total). All lengths have a tolerance of 10 mm. PATA plugs are the 4-pin Molex plugs. The 12V-2x6 to 2x 8-pin cable is stored as a PCIe 8-pin cable with 2 plugs. It and the 12V-2x6 cable both plug into the native 12V-2x6 socket of the PSU, as Hardware Busters says the modular panel has one native 12V-2x6 header. The Cybenetics report and Hardware Busters list the 2x 8-pin cable as 2 cables with 2 connectors, which does not match Corsair's listing. Gauges come from the Cybenetics report.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026Included cables: 1x ATX 24-pin 610 mm, 2x ATX12V/EPS12V 4+4-pin 650 mm, 2x 8-pin PCIe 650 mm, 1x 90-degree 12V-2x6 to 2x 8-pin PCIe 650 mm, 1x 90-degree 12V-2x6 to 600W 12V-2x6 650 mm, 2x 3 SATA cable (3x with RM850x, 4x with RM1000x SHIFT) 700 mm and 1x 4 PATA cable 750 mm.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Cables and Connectors table: ATX 24 pin 610 mm 16-20AWG, 2 x 4+4 pin ATX12V 650 mm 18AWG, 2 x 6+2 pin PCIe 650 mm 18AWG, 2 x 2x 6+2 pin PCIe 650 mm 18AWG, 12+2 pin PCIe 655 mm (600W) 16-24AWG, 4 SATA cables with 12 plugs in total (505 mm + 105 mm x 2) 18AWG and 1 Molex cable with 4 plugs (405 mm + 105 mm x 3) 18AWG, no in-cable capacitors. The 16-24AWG range of the 12V-2x6 cable includes the sideband wires, so no gauge is stored for it. The 18AWG gauge of the PCIe cables is stored for the 2x 8-pin cable too. Corsair's lengths are stored, not the report's.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Page 2: the modular panel has twelve sockets including one native 12V-2x6 header, and all cables are debossed PVC.
BSuper Flower Leadex VIII Platinum PRO 1000W
| Connector | Connectors | Cables | Length to first plug (mm) | Wire gauge | Rated power (W) |
|---|---|---|---|---|---|
| ATX 24-pin (20+4) | 1 | 1 | 600 | 16-20AWG | Not available |
| CPU 8-pin (EPS, 4+4) | 2 | 2 | 700 | 18AWG | Not available |
| PCIe 8-pin (6+2) | 4 | 4 | 700 | 16-18AWG | Not available |
| 12V-2x6 | 1 | 1 | 700 | Not available | 600 |
| SATA power | 8 | 2 | 550 | 18AWG | Not available |
| 4-pin Molex | 4 | 1 | 550 | 18AWG | Not available |
Source1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026The Cable tab for the 1000W lists 20+4Pin x1, (4+4Pin) CPU x2, PCI-E 6+2Pin x4, Native 12+4 PIN VGA x1, 4 SATA x2 and 4 Molex x1. The cable drawings state 600 mm for the 24-pin cable, 700 mm for the CPU, PCIe and 12+4 pin cables and 550 mm to the first plug for the SATA and Molex cables. The 12+4 pin cable is the native 12V-2x6 cable. Gauges come from the Cybenetics report.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Cables and Connectors table: ATX 20+4 pin 600 mm 16-20AWG, 2 x 4+4 pin ATX12V 700 mm 18AWG, 4 x 6+2 pin PCIe 700 mm 16-18AWG, 12+4 pin PCIe 700 mm (600W) 16-26AWG, 2 SATA cables with 8 plugs in total 550 mm 18AWG and 1 Molex cable with 4 plugs 550 mm 18AWG, no in-cable capacitors. The 16-26AWG range of the 12+4 pin cable includes the sideband wires, so no gauge is stored for it.
CPU (EPS) connectors
2
2
PCIe 8-pin connectors
4
4
16-pin GPU connectors
1
1
SATA power connectors
12
8
4-pin Molex connectors
4
4
Cable style
Embossed or debossed flat1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Cable listing: Debossed cable type for every cable. Tech Specs: Cable Type Type 5. Stored as embossed, which covers debossed jackets.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Improved debossed-PVC cables with low-profile combs.
Not available
Fan
2 of 4 differ
Fan size
140mm1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Tech Specs: Fan Size MM 140mm.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026A quiet 140mm fluid dynamic bearing fan.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026DUT Information: 140mm Fluid Dynamic Bearing Fan (NR140HP).
Fan bearing
Fluid dynamic (FDB)1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Tech Specs: Fan Bearing Technology FDB. Overview: 140mm Fluid Dynamic Bearing fan with a magnetic dome structure. Cybenetics names the fan Corsair NR140HP, Fluid Dynamic Bearing.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026A quiet 140mm fluid dynamic bearing fan.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Parts description: Corsair NR140HP, 140mm, 12V, 0.33A, Fluid Dynamic Bearing Fan.
Fan mode
Semi-passive1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: Zero RPM Mode for near-silent operation at lower loads, with a manual fan override knob.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Zero RPM mode: the fan switches off entirely at low and medium loads. A rear-mounted knob adjusts fan speed.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026DUT Information: Semi-Passive Operation checked (selectable).7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Semi-Passive Operation yes (selectable). Corsair's fan knob explainer says the knob does not turn Zero RPM mode off and only sets the fan speed once the fan starts, so no fan mode switch is stored.8Maker product pagecorsair.com/us/en/explorer/diy-builder/power-supply-units/how-exactly-does-the-fan-control-knob-on-corsair-psus-workRead 15 October 2026Corsair explains that Zero RPM mode is on by default and the knob is an override that sets the fan speed when the fan does turn on. It does not turn the feature off. The product page words the knob as overriding Zero RPM mode, so the fan mode switch field is left empty.
Semi-passive1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Overview: Zero RPM with fan ECO Mode.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026DUT Information: Semi-Passive Operation ticked (selectable). The typical load table shows the fan at 0 rpm from 10% to 40% load at 115V.
Protection and parts
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Protections
Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026Safety and Protection section for the series: OVP on 12V, 5V and 3.3V, OCP on 3.3V, 5V and 12V, OTP, SCP and OPP (shuts off between 115% and 135% of rated power). UVP, NLO and SIP come from the Hardware Busters protection tests.6Measurementcybenetics.com/evaluations/psus/2873Read 15 October 2026Protection Features (Manufacturer): OPP, +12V OCP, OTP, SCP, surge protection and inrush protection ticked, fan failure protection not present.7Reviewhwbusters.com/psus/corsair-rm1000x-shift-atx-v3-1-psu-reviewRead 15 October 2026Protection Features page: OCP on 12V, 5V, 3.3V and 5VSB, OPP, OTP, SCP, UVP (90V full load and 80V no damage), NLO and SIP (surge MOV, inrush NTC and bypass relay) all shown. Fan failure protection is not present.
Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Spec table: OVP / OCP / OPP / SCP / UVP / OTP / SIP / LVP. LVP is the low voltage protection and is stored as UVP. NLO comes from the Cybenetics protection tests.2Measurementcybenetics.com/evaluations/psus/2912Read 15 October 2026Protection Features: OPP at 117.51%, +12V OCP, OTP, SCP to earth, UVP at full load 90V and no damage at 80V, NLO ticked and SIP shown (surge MOV, inrush NTC and bypass relay). Fan failure protection is not present.
All-Japanese capacitors
Yes1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: 105 C-rated 100% Japanese electrolytic capacitors. The Cybenetics parts list also shows 31 polymer capacitors from FPCAP, which the claim does not cover.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026105 C-rated 100% Japanese capacitors.
Monitoring and lighting
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Software monitoring
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Software
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Built-in power display
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RGB lighting
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Dimensions and weight
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Dimensions
Width150Height86Depth160mm(5.9 × 3.4 × 6.3 in)1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Tech Specs: Dimensions 160mm x 150mm x 86mm with no axis names. The quick start guide gives length 160 mm, width 150 mm and height 86 mm. Depth is 160 mm. The page weight of 3kg is a packed weight and is not stored.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026RM1000x specifications: length 160mm, width 150mm, height 86mm.
Width150Height86Depth125mm(5.9 × 3.4 × 4.9 in)1Maker product pagesuper-flower.com.tw/products-detail/LVIII-P-PRORead 15 October 2026Spec table: Dimensions 125mm(D) x 150mm(W) x 86mm(H).
In the box
None of 1 known
In the box
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Links
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Product page
Spec sheet
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Manual
www.corsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generation2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026Quick start guide of the RMx SHIFT Series 2nd generation. It covers the 750W, 850W and 1000W models. The page keeps no separate PDF.
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EPREL registration number
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Warranty
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Manufacturer warranty (source market)
10years1Maker product pagecorsair.com/us/en/p/psu/cp-9020300-na/rm1000x-shift-fully-modular-atx-power-supply-cp-9020300-naRead 15 October 2026Overview: 10-year warranty. Tech Specs: Warranty 10 Year. The page is the US shop.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-shift-series-2nd-generationRead 15 October 2026CORSAIR RMx SHIFT Series 2nd Gen provides a ten-year warranty.3Press releasecorsair.com/newsroom/press-release/corsair-launches-second-generation-rmx-shift-psus-with-updated-cables-and-12v-2x6-gpu-supportRead 15 October 2026Each unit includes a ten-year warranty.
Both are also in the API. Back to all power supplies.