Description

Antec CSK Pro 850W Power Supply – ATX 3.1, 80 PLUS Bronze, Semi-Modular, PCIe 5.1 Ready

Overview

The Antec CSK Pro 850W ATX 3.1 is a robust and efficient power supply unit designed to support modern PC builds, including gaming systems and professional workstations. With compliance to the latest Intel ATX 3.1 standard and native PCIe 5.1 support, this PSU is equipped to power high-performance components, including next-generation GPUs like the NVIDIA RTX 40 series. Featuring 80 PLUS Bronze certification, it offers up to 90% efficiency, reducing energy waste and heat output. The semi-modular design allows for simplified cable management, making it an excellent choice for builders seeking performance, flexibility, and clean aesthetics.

Key Features

Power & Efficiency

• Output Power: 850W continuous stable output
• Efficiency Rating: 80 PLUS Bronze – up to 90% energy efficiency
• Standard Compliance: Intel ATX 3.1
• PCIe 5.1 Ready: Includes 12VHPWR (16-pin) connector for latest GPUs

Cooling & Performance

• 120mm Silent Fan: Designed for quiet and efficient cooling
• Thermal Manager: Smart fan control for optimal balance between cooling and noise
• High reliability under full load for gaming and productivity tasks

Design & Build Quality

• Semi-Modular Design: Allows the use of only necessary cables, improving airflow
• Durable Components: Built for long-term reliability and stable power delivery
• Compact ATX Form Factor: Fits in most mid- and full-tower cases

Advanced Circuit Protection – Antec CircuitShield™

• Over Voltage Protection (OVP)
• Under Voltage Protection (UVP)
• Over Power Protection (OPP)
• Over Current Protection (OCP)
• Short Circuit Protection (SCP)
• Over Temperature Protection (OTP)
• Surge and Inrush Protection (SIP)
• No Load Operation (NLO)

Connectors

• 1 x 24-pin ATX
• 2 x 8-pin (4+4) EPS for CPU
• 4 x 8-pin (6+2) PCIe for GPUs
• 1 x 16-pin 12VHPWR (for PCIe 5.1 GPUs)
• 6 x SATA
• 3 x Molex

Form Factor & Warranty

• Dimensions: 140mm (L) x 150mm (W) x 86mm (H)
• Form Factor: Standard ATX
• Weight: Approx. 1.95 kg
• Warranty: Backed by a 5-year manufacturer warranty

Why Choose the Antec CSK Pro 850W ATX 3.1 PSU?

• Compliant with ATX 3.1 and PCIe 5.1, ready for next-gen graphics cards
• 80 PLUS Bronze certified for energy-efficient performance
• Semi-modular cabling improves airflow and simplifies installation
• Built-in Thermal Manager and smart fan control for quiet operation
• Protected by Antec’s CircuitShield™ suite for safe and reliable use