Seasonic VERTEX GX-850 850W 80 PLUS Gold Fully Modular ATX 3.0 PSU

The Seasonic VERTEX GX-850 is an 850 W fully modular ATX power supply with 80 PLUS Gold certification, built for high-performance PC builds that need efficient, stable power delivery. It includes an ATX 3.0 16-pin PCIe Gen 5 (12VHPWR) cable and a premium hybrid fan control for quiet operation.

Key Features

• 80 PLUS Gold certified efficiency
• Fully modular design with flat black cables
• ATX 3.0 with 16-pin PCIe Gen 5 cable (12VHPWR)
• 135 mm fluid dynamic bearing fan
• Premium hybrid fan control
• Tight voltage regulation on 12 V, 5 V and 3.3 V rails (±3%)
• Gold-plated high current terminals (MB, CPU and PCIe)

Specifications

• 80 PLUS: Gold
• Cybenetics efficiency level: TBA
• Cybenetics noise level: TBA
• Form factor: Intel ATX 12 V
• Dimensions: 160 mm (L) x 150 mm (W) x 86 mm (H)
• Fan size: 135 mm
• Fan control: Premium hybrid fan control
• Fan bearing: Fluid dynamic bearing
• Fan life expectancy: 50,000 hours at 40 °C, 15%–65% RH
• Modularity: Fully modular
• Cable type: Flat black cables
• Operating temperature: 0–50 °C (derating from 100% to 80% from 40 °C to 50 °C)
• MTBF at 25 °C (excluding fan): 150,000 hours
• AC input: Full range, 100 V–240 V, 11–5.5 A, 50 Hz–60 Hz
• Protection: OPP, OVP, UVP, OCP, OTP, SCP
• Safety and EMC: cTUVus, TUV, CB, CCC, BSMI, EAC, CE
• Environmental compliance: Energy Star, RoHS, WEEE, ErP Lot 6, REACH
• Warranty: 10 years

Power Output

• +3.3 V: 20 A (125 W combined with +5 V)
• +5 V: 20 A (125 W combined with +3.3 V)
• +12 V: 70 A (840 W)
• -12 V: 0.3 A (3.6 W)
• +5 VSB: 3 A (15 W)
• Total continuous power: 850 W