As an Amazon Associate we earn from qualifying purchases.
- Best overall: Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply
- Best budget: Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply
- Best premium: Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply
- Best for a high-capacity build with side-mounted cables: Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply
- Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply suits high-power builds that benefit from 1000W capacity and iCUE monitoring.
- Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is the practical value pick for many gaming PCs with a 750W requirement.
- Both Corsair HX1000i and Corsair RM750x have fully modular cables, but their 250W capacity difference makes them suited to different builds.
- Corsair RM850x SHIFT and Corsair RM1000x SHIFT place cable connections on the side, so case clearance is essential.
- Choose a power supply by checking your graphics card needs, case fit, connector requirements, warranty and total system load.
Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply is the stronger choice for high-demand builds, while Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is the sensible fit for many mainstream gaming PCs. The 250W capacity gap, Platinum versus Gold efficiency ratings, and HX1000i’s iCUE monitoring are the main differences to weigh for Black Friday 2026.
We researched and compared specs, reviews and owner feedback across seven Corsair power supplies, focusing on useful capacity, efficiency, cables, monitoring and warranty. A bigger wattage number is not automatically better value: the right unit matches the processor, graphics card, case and upgrade plan. My pick for most people is the Corsair RM750x when 750W meets the build’s requirements; choose a higher-capacity model for a more demanding graphics card or added headroom.
How We Picked
- Compared rated output in watts against common gaming and workstation build needs.
- Checked 80 PLUS efficiency ratings as a useful point of comparison, not a guarantee of a specific electricity bill.
- Reviewed modular cable layouts, including the side-connector design on SHIFT models and case-clearance needs.
- Compared stated warranties and practical extras such as iCUE monitoring and modern GPU power connectors.
- Used manufacturer specifications alongside review coverage and owner feedback; no research claims are made.
Comparison Table
| Product | Best for | Rated output | Efficiency rating | Warranty |
|---|---|---|---|---|
| Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply | High-power builds with monitoring | 1000W | 80 PLUS Platinum | 10 years |
| Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply | Mainstream gaming PCs | 750W | 80 PLUS Gold | 10 years |
| Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply | 850W builds with side-connector clearance | 850W | 80 PLUS Gold | 10 years |
| Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply | 1000W builds with side-connector clearance | 1000W | 80 PLUS Gold | 10 years |
| Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply | 850W builds with standard cable access | 850W | 80 PLUS Gold | 7 years |
| Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply | Value-focused 750W builds | 750W | 80 PLUS Gold | 7 years |
| Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply | Workstations and enthusiast systems | 1200W | 80 PLUS Platinum | 10 years |
Best Picks Reviewed
#1
Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply
The Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply is the best premium PSU for high-demand builds that need 1000W capacity. The Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply's 80 PLUS Platinum rating and iCUE monitoring make it a feature-rich step up from a 750W Gold unit.
Best for: High-power gaming PCs and builds that benefit from monitoring
- Rated output
- 1000W
- Efficiency rating
- 80 PLUS Platinum
- Warranty
- 10 years
- 1000W output for demanding components and upgrade headroom
- iCUE monitoring offers visibility into power use
- Fully modular cables simplify cable management
- Costs more than a lower-wattage Gold model in most lineups
- Extra capacity is unnecessary for many standard gaming PCs
Is the Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply is a strong Black Friday 2026 choice for a high-power PC, offering 1000W, Platinum efficiency, fully modular cables and iCUE monitoring.
See today’s Black Friday price on Amazon
#2 · Top pick
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply
The Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is the best value PSU for mainstream gaming PCs that need 750W. The Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply's 80 PLUS Gold rating and fully modular design deliver a practical mix of efficiency and clean installation.
Best for: Mainstream gaming PCs with a 750W power requirement
- Rated output
- 750W
- Efficiency rating
- 80 PLUS Gold
- Warranty
- 10 years
- 750W capacity suits many gaming configurations
- Fully modular cables keep unused leads out of the case
- 10-year warranty supports long-term ownership
- Less headroom than 850W and 1000W alternatives
- No iCUE telemetry feature
Is the Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is a sensible choice for a compatible 750W gaming build, with Gold efficiency, fully modular cabling and a 10-year warranty.
See today’s Black Friday price on Amazon
#3
Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply
The Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply is the best PSU for builders who want 850W and a side-mounted cable layout. The Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply's 850W output adds capacity over the RM750x, while the SHIFT design needs a compatible case.
Best for: 850W builds with room beside the PSU for side connections
- Rated output
- 850W
- Efficiency rating
- 80 PLUS Gold
- Warranty
- 10 years
- 850W capacity offers more headroom than a 750W model
- Side connections can simplify cable access in compatible cases
- Fully modular cable design
- Side connectors require adequate case clearance
- Gold efficiency rather than Platinum
Is the Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply is a good fit for a compatible case and an 850W build. Check side-panel clearance and cable access before choosing the SHIFT layout.
See today’s Black Friday price on Amazon
#4
Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply
The Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply is the best PSU for high-capacity builds that favor a side-mounted connector layout. The Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply's 1000W output matches the HX1000i’s rated capacity, but the SHIFT model uses a Gold efficiency tier.
Best for: High-power builds in cases designed for side-mounted PSU connections
- Rated output
- 1000W
- Efficiency rating
- 80 PLUS Gold
- Warranty
- 10 years
- 1000W output for demanding PC components
- Side-mounted connections can help with cable routing
- Fully modular design
- Requires case clearance beside the PSU
- Does not offer the HX1000i’s Platinum rating
Is the Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply suits a high-demand build when the case supports side-mounted connections. The Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply's 1000W capacity and fully modular cables make it a useful alternative to the HX1000i.
See today’s Black Friday price on Amazon
#5
Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply
The Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply is the best PSU for buyers seeking 850W capacity in a straightforward modular design. The Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply's Gold efficiency and 850W rating suit builds that need more power than the RM750x provides.
Best for: Gaming PCs that need 850W without a side-connector layout
- Rated output
- 850W
- Efficiency rating
- 80 PLUS Gold
- Warranty
- 7 years
- 850W capacity adds room over a 750W unit
- Fully modular cables support tidy assembly
- Gold rating is a useful efficiency tier
- 7-year warranty is shorter than the RMx series warranty
- No iCUE monitoring
Is the Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply is a practical option for an 850W gaming build, with Gold efficiency and fully modular cables. Compare its 7-year warranty with longer-warranty Corsair alternatives.
See today’s Black Friday price on Amazon
#6
Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply
The Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply is the best budget-focused PSU for a compatible build that calls for 750W. The Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply's Gold rating and fully modular cables cover the essentials, while the shorter warranty separates it from the RM750x.
Best for: Value-focused gaming builds with a 750W requirement
- Rated output
- 750W
- Efficiency rating
- 80 PLUS Gold
- Warranty
- 7 years
- 750W output for many mainstream PC configurations
- Fully modular cables simplify cable management
- Gold efficiency rating
- 7-year warranty is shorter than the RM750x warranty
- Lacks the HX1000i’s monitoring features
Is the Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply is a sensible value-focused match for a 750W build. Gold efficiency and modular cabling cover core needs, while the 7-year warranty is shorter than the RM750x warranty.
See today’s Black Friday price on Amazon
#7
Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply
The Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply is the best premium PSU for workstations and enthusiast PCs that need 1200W. The Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply's Platinum efficiency and iCUE monitoring suit a high-capacity build with more demanding power needs.
Best for: Enthusiast PCs and workstations requiring 1200W
- Rated output
- 1200W
- Efficiency rating
- 80 PLUS Platinum
- Warranty
- 10 years
- 1200W output for especially demanding systems
- Platinum efficiency tier
- iCUE monitoring and fully modular cabling
- More capacity than most gaming PCs need
- Large-capacity premium positioning is excessive for basic builds
Is the Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply worth buying on Black Friday 2026?
Yes. Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply is a strong fit for a workstation or enthusiast PC that needs 1200W, with Platinum efficiency, iCUE monitoring and fully modular cables.
See today’s Black Friday price on Amazon
Which is better, Corsair HX1000i or Corsair RM750x?
Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply suits high-power PCs and adds iCUE monitoring. Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply fits builds whose requirements stay within 750W. Both are fully modular and carry 10-year warranties.
Choose by system power needs, monitoring preference and case fit.
Is 750W enough for a gaming PC?
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply suits gaming PCs that fit within its rated output. Check the graphics card maker’s recommendation and account for the processor and other components.
Consider an 850W or 1000W model when the build or planned upgrades need more capacity. Extra wattage alone does not improve performance.
What does 80 PLUS Gold or Platinum mean?
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply has a Gold rating; Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply has a Platinum rating. Platinum sits above Gold in the 80 PLUS efficiency hierarchy.
Compare efficiency alongside wattage, connectors, case compatibility and warranty. A higher rating does not make a unit the right fit for every build.
Are Corsair SHIFT power supplies compatible with every PC case?
Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply have side-mounted cable connections. Check case clearance around the PSU, side panel and drive cages before buying.
Choose a standard-layout model, such as Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply or Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply, if the case lacks room for SHIFT cables.
Which Corsair PSU is best for a high-power build?
Corsair HX1200i 1200W 80 PLUS Platinum Fully Modular ATX Power Supply offers the highest capacity in this guide. Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply and Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply are 1000W alternatives; the SHIFT model has side-mounted connections.
Match capacity and connectors to the components and planned upgrades. Check case compatibility before choosing a SHIFT model.
Buying Guide
Match wattage to your components
Check graphics-card guidance and account for the processor, drives and fans. Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply fits compatible 750W builds; Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply offers 850W.
Check the case before choosing SHIFT
Confirm that the case leaves room for the side-mounted connections and cable routing on Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply.
Compare Gold and Platinum efficiency
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply has a Gold rating; Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply has a Platinum rating. Compare ratings alongside wattage and features.
Think about monitoring and connectors
Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply includes iCUE monitoring. Match each model’s cable set and graphics-card connectors to the build.
Compare warranty and upgrade plans
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply carry 10-year warranties. Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM850e 850W 80 PLUS Gold Fully Modular ATX Power Supply carry 7-year warranties. Weigh warranty coverage against current needs and planned upgrades.
FAQ
Corsair HX1000i vs Corsair RM750x: which should I buy?
Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply fits a high-power build that benefits from 1000W and iCUE monitoring. Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is the practical pick when the PC needs 750W and does not need the HX1000i’s extra capacity.
Is the Corsair RM750x good for gaming?
Yes. Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply is a strong gaming-PC option when the processor, graphics card and other components fit its 750W capacity. Check your graphics card’s power guidance and the full system requirements before choosing.
Is the Corsair HX1000i a Platinum power supply?
Yes. Corsair HX1000i 1000W 80 PLUS Platinum Fully Modular ATX Power Supply has an 80 PLUS Platinum rating, 1000W rated output, fully modular cables and iCUE monitoring. The higher capacity is useful for demanding systems, but not necessary for every gaming PC.
What is the difference between Corsair RM750x and RM750e?
Corsair RM750x 750W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM750e 750W 80 PLUS Gold Fully Modular ATX Power Supply both provide 750W and Gold efficiency. The RM750x has a 10-year warranty; the RM750e has a 7-year warranty.
Are Corsair RMx SHIFT power supplies worth choosing?
Corsair RM850x SHIFT 850W 80 PLUS Gold Fully Modular ATX Power Supply and Corsair RM1000x SHIFT 1000W 80 PLUS Gold Fully Modular ATX Power Supply are useful choices when their wattage suits the build and the case supports side-mounted connections. Confirm clearance and cable access first.