Antec CSK850 PRO 850W PSU 80 Plus Bronze Power Supply ATX3.1 PCIe5.0 - Semi Wired

Description

The Antec CSK850 PRO is an 850 W semi-modular power supply designed for modern gaming and high-performance PCs. Compliant with the ATX 3.1 standard and PCIe 5.1 ready, it supports the latest graphics cards through its native 12V 2×6 (12VHPWR) connector. Featuring 80 Plus Bronze efficiency and advanced CircuitShield™ protection, this PSU ensures reliable, efficient, and safe power delivery. Its compact design, quiet 120 mm fan with intelligent thermal control, and semi-modular cables make installation easy and improve system airflow. Backed by a 5-year warranty, it is a future-proof choice for demanding PC builds.

Full Specifications
Model: CSK850 PRO
MPN: 0-761345-20071-4
Form Factor: ATX 12V 3.1 semi-modular
Wattage: 850 W continuous
Efficiency: 80 Plus Bronze (up to ~90%)
ATX Standard: ATX 3.1
PCIe Support: PCIe 5.1 native 12V 2×6 GPU connector
Protection Features (CircuitShield™): OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Cooling: 120 mm silent fan with thermal manager fan speed control
PFC: Active PFC
Power Good Signal: 100–150 ms
Input Voltage: 200–240 V AC, 12 A max, 50–60 Hz
Dimensions (L x W x H): 140 x 150 x 86 mm
Net Weight: Approximately 1.95 kg

Connectors:
1 x 24-pin ATX main
1 x 16-pin (12+4) PCIe 5.1 (12VHPWR, up to 600 W)
2 x 8-pin (4+4) CPU EPS
4 x 8-pin (6+2) PCIe
6 x SATA
3 x Molex

Operating Temperature: 0–40 °C
Certifications: TUV, CB, RCM, CE, BIS, UKCA, KC
Warranty: 5 years