Description

Antec Atom G850 850W Power Supply – 80 PLUS Gold, Semi-Modular, ATX PS/2, Silent Fan

Overview

The Antec Atom G850 is a high-performance 850W 80 PLUS Gold certified semi-modular power supply unit designed to meet the needs of gamers, PC builders, and creative professionals. Engineered for efficiency, stability, and durability, this PSU delivers reliable power to high-performance gaming rigs and workstations. Compliant with the ATX 12V 2.53 standard, the Atom G850 is compatible with modern motherboards and GPUs. Its semi-modular design provides a clean, flexible build, while the 120mm silent fan ensures quiet operation and optimal cooling.

Key Features

Power & Efficiency

• Rated Output: 850W continuous power
• Efficiency Certification: 80 PLUS Gold – up to 90% efficiency under typical loads
• ATX Version: 12V 2.53 compliant for modern systems
• Active Power Factor Correction (PFC) for better voltage regulation and power stability

Cooling System

• Fan: 120mm quiet fan for efficient cooling
• Thermal Manager: Advanced thermal control system with smart fan speed adjustment
• Low noise profile, even under load

Design & Modularity

• Semi-Modular Design: Reduces cable clutter and improves airflow
• Flat black cables for easier routing and a clean look
• Standard ATX PS/2 size fits most mid- and full-tower cases

High-Quality Components & Protection

• Built with DC-to-DC converters for stable output voltages
• Antec CircuitShield™ Protection Suite includes:
  • Over Voltage Protection (OVP)
  • Under Voltage Protection (UVP)
  • Over Current Protection (OCP)
  • Over Power Protection (OPP)
  • Short Circuit Protection (SCP)
  • Over Temperature Protection (OTP)
  • No Load Operation (NLO)

Connectors

• 1 × 24-pin ATX
• 2 × 8-pin (4+4) EPS CPU
• 4 × 8-pin (6+2) PCIe for graphics cards
• 6 × SATA connectors
• 3 × Molex connectors

Specifications

• Form Factor: ATX PS/2
• Dimensions: 140mm (L) x 150mm (W) x 86mm (H)
• Weight: Approx. 3.4 kg
• Operating Temperature: 0°C to 40°C
• Warranty: 5-Year Manufacturer Warranty

Why Choose the Antec Atom G850 850W PSU?

• Certified 80 PLUS Gold efficiency for energy savings and low heat output
• Semi-modular cable system provides a neat and efficient PC build
• Compatible with modern high-performance GPUs and CPUs
• Quiet and cool operation with thermal management technology
• Backed by Antec’s trusted 5-year warranty for long-term reliability