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Corsair RM850x 850W 80+ Gold Fully Modular PSU

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Verified Hardware
100% Stress-Tested
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Express Delivery
Island-wide 48h
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Warranty Backed
6 Months Replacement Warranty
TESTED GRADE A Condition: Tested Used (Full original modular cables included)
★★★★★
5.0 (15 verified reviews) • ✔ In Stock (5 available)
⚡ LIMITED TIME OFFER
Ends in: 02d : 14h : 45m : 30s
LKR 22,500 LKR 29,000 SAVE LKR 6,500

Tier-A premium power supply with 100% Japanese 105°C capacitors, Zero RPM silent fan mode, and 80 PLUS Gold efficiency for power-hungry GPUs like RTX 3080/4080.

Warranty: 6 Months Replacement Warranty
Delivery: Island-wide insured courier with door-to-door tracking
Payment: Cash on Delivery, Bank Transfer, or Koko / Mintpay Installments
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Detailed Component Specifications

Continuous Power 850 Watts Clean Steady Power Delivery
Efficiency Certification 80 PLUS Gold (Up to 90% Efficiency)
Modularity 100% Fully Modular Flat Black Cables
Fan Bearing 135mm Magnetic Levitation Fan with Zero RPM Mode
Protection OVP, UVP, SCP, OTP, OPP Protections

Real-World Performance Test Results

Tested on 1080p / 1440p resolutions with high graphics settings in our Colombo benchmark laboratory.

Voltage Regulation Stability 99 FPS / Pts
Silent Operation Rating 98 FPS / Pts

Multi-Point Hardware Verification Checklist

  • Thermals: 60-min FurMark stress test with zero throttling
  • CPU / VRM: Cinebench R23 all-core stability passed
  • Memory: MemTest86 4-passes zero errors
  • Storage: CrystalDiskInfo 100% Health (Zero Bad Sectors)
  • Cleaned & Repasted: Arctic MX-6 high-performance thermal paste
  • Warranty: 6 Months Replacement Warranty included
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