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The Antec CSK850 PRO ATX3.1 is an 850W semi-modular power supply for gaming PCs and high-performance desktop builds. Its continuous power output and range of connectors suit systems using a modern graphics card alongside multiple storage drives.
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 2x6 (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.
Protection Features (CircuitShield™)
- OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Specification
| Specification | Detail |
|---|---|
| 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 2x6 GPU connector |
| 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 |
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