CORSAIR
CORSAIR RM850e | 850W Fully Modular ATX 3.1 Power Supply (80 PLUS Gold, PCIe 5.1, Low-Noise)
CORSAIR RM850e | 850W Fully Modular ATX 3.1 Power Supply (80 PLUS Gold, PCIe 5.1, Low-Noise)
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The CORSAIR RM850e Power Supply is a high-performance PSU built for modern gaming rigs and professional workstations. With ATX 3.1 certification, PCIe 5.1 support, and Cybenetics Gold efficiency, it delivers stable, efficient, and ultra-quiet power for next-generation hardware.
Key Features
• 850W continuous power output for high-end gaming and productivity systems
• Fully modular design for clean and efficient cable management
• Native 600W-capable 12V-2x6 GPU cable included
• ATX 3.1 certified with PCIe 5.1 compatibility
• Cybenetics Gold-certified efficiency
• Ultra-flexible embossed cables with low-profile combs
• Compact 140mm PSU size for easy installation
Next-Gen Ready Performance
• Designed for modern GPUs including RTX 40/50 series
• Native 12V-2x6 connector ensures stable high-power delivery
• Handles transient GPU power spikes efficiently
• Strong +12V rail delivering full 850W output
Efficient & Quiet Operation
• Up to ~89% efficiency reduces heat and power loss
• Cybenetics A-rated noise ensures near-silent performance
• 120mm rifle bearing fan with optimized fan curve
• Zero RPM mode for silent operation at low loads
Fully Modular Cabling
• Connect only required cables for a clean build
• Flexible embossed cables improve cable routing
• Supports multiple GPUs and CPU configurations
• Enhances airflow and system aesthetics
Advanced Design & Reliability
• Resonant LLC topology with DC-DC conversion
• 105°C-rated industrial-grade capacitors
• Supports Modern Standby for fast wake times
• Stable voltage delivery for demanding workloads
Connectivity
• 1× 24-pin ATX cable
• 2× EPS (4+4) CPU connectors
• 1× 12V-2x6 (12+4) GPU cable
• 3× PCIe 8-pin (6+2) connectors
• 6× SATA connectors
• 2× PATA connectors
Technical Specifications
• Power Output: 850W
• Efficiency: Cybenetics Gold
• Noise Rating: Cybenetics A
• ATX Version: 3.1
• Fan Size: 120mm (Rifle Bearing)
• Modular: Fully Modular
• Dimensions: 140 × 150 × 86 mm
• MTBF: 100,000 hours
• Weight: 2.93 kg
Warranty
• 7-Year Manufacturer Warranty
• CORSAIR world-class support included
Why Buy from Mustafa Computers
Mustafa Computers is an authorized partner of CORSAIR in Pakistan, offering genuine products, competitive pricing, and nationwide delivery.
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Shipping Policy
Shipping Policy
Free Delivery within Lahore: Available on orders above PKR 10,000 (selected items only).
Other Cities: Free delivery on orders above PKR 15,000. Standard courier charges apply otherwise.
Delivery Time: 3–5 business days (subject to courier and destination).
Couriers: We use TCS and Postex. Bulky items may be shipped via city-to-city cargo, with self-collection for cheaper delivery.
COD Orders
- Available on selected items only, up to PKR 19,000.
- 4% government tax applies on COD payments.
- Orders PKR 19,001–100,000 require 50% advance.
- Orders above PKR 100,000 require full advance or in-store pickup.
- Full advance may be required for certain items below PKR 19,000.
Return Policy Warranty
- 7 Days Return Warranty for defective or incorrect items.
- Products must be in original packaging with all accessories and documentation.
- No return for “change of mind”, software, or consumables (e.g., cartridges, toners).
Warranty Claim
- Warranty coverage is as per manufacturer or Mustafa Computers’ terms.
- Company may repair, replace, or issue a credit note for valid claims.
- No warranty for electrical damage, cartridges, or printer heads.
- Warranty void if item is physically damaged or packaging/accessories are missing.
- Check warranty applies to used items only.
- For international warranty, customer bears freight charges.
Customers must ensure they receive the warranty card and invoice at purchase. (Some items are valid by invoice only.)