Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year Warranty

Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year Warranty

Vendor: ANTEC
SKU: 0-761345-20071-4
Barcode: 0761345200714
Availability: In stock
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£76.99
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Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year Warranty

Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year Warranty

£76.99

Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year Warranty

£76.99

Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Gaming Power Supply

The Antec CSK850 PRO delivers professional-grade power performance for enthusiast gaming rigs and high-performance workstations. This semi-modular ATX 3.1 power supply features native PCIe 5.1 support with a dedicated 12V-2x6 connector, ensuring seamless compatibility with next-generation RTX 40-series and future graphics cards requiring up to 600W power delivery.

Engineered with Antec's advanced CircuitShield™ protection suite and 80 Plus Bronze efficiency certification, this 850W PSU combines reliable power delivery with intelligent thermal management. The whisper-quiet 120mm fan automatically adjusts based on system load, while semi-modular cabling optimizes airflow and simplifies installation in compact builds.

Technical Specifications

  • Power Output: 850W continuous, ATX 12V 3.1 standard
  • Efficiency Rating: 80 Plus Bronze (up to 90% efficiency)
  • Form Factor: Semi-modular ATX design
  • Input Requirements: 200-240V AC, 50-60Hz, 12A maximum
  • Dimensions: 140 × 150 × 86mm, 1.95kg weight
  • Operating Range: 0-40°C ambient temperature
  • Power Good Signal: 100-150ms response time
  • Certifications: TUV, CB, CE, RCM, BIS, UKCA, KC approved

Key Features

  • Next-Gen GPU Ready: Native 16-pin PCIe 5.1 connector supports RTX 40-series cards
  • CircuitShield™ Protection: Complete safeguard suite (OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO)
  • Intelligent Cooling: Thermal manager controls 120mm silent fan operation
  • Comprehensive Connectivity: 24-pin ATX, dual 8-pin CPU, 4× PCIe, 6× SATA, 3× Molex
  • Semi-Modular Design: Reduces cable clutter and improves system airflow
  • Active PFC: Enhanced power factor correction for stable performance
  • 5-Year Warranty: Premium manufacturer backing for peace of mind

Shipping Information

All orders placed before 2:00pm (Monday to Friday) are dispatched the same day. Orders placed after 2:00pm, on weekends, or on bank holidays will be shipped the following business day.

Your order will be carefully packed and shipped from our UK warehouse. You’ll receive tracking details as soon as your parcel is on its way.

Returns

If you change your mind, we accept returns within 30 days of delivery on most new, unopened items. Simply contact our friendly support team to start your return—it's quick and hassle-free.

Your satisfaction is our priority. If you need any help or have questions about your order, please get in touch with our support team.

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