Antec
Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply
SKU: CSK850 PRO
Why We Chose This
We selected the Antec CSK 850W Pro for its excellent balance of price and performance. It's one of the few PSUs at this price point that offers ATX 3.1 and PCIe 5.1 certification with a native 12V-2x6 connector, making it a perfect match for RTX 40 series GPUs. The semi-modular design and 80+ Bronze efficiency provide great value for budget-conscious builders who don't want to compromise on safety or compatibility.
Antec CSK 850W Pro: 80+ Bronze, ATX 3.1 & PCIe 5.1 semi-modular PSU with native 12V-2x6 connector for RTX 40 series GPUs.
Free delivery on orders over R3,000
Specifications
Product Description
The Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply delivers a robust and efficient power solution for modern gaming and professional builds. With ATX 3.1 and PCIe 5.1 certification, it's fully compatible with NVIDIA GeForce RTX 40 Series GPUs via the included 12V-2x6 cable. The 80 PLUS Bronze rating ensures up to 90% efficiency, reducing heat and noise while saving on electricity costs.
Key Features
- 850W continuous power with 80 PLUS Bronze efficiency (up to 90%)
- ATX 3.1 & PCIe 5.1 certified with native 12V-2x6 connector for RTX 40 Series
- Semi-modular cabling for easier cable management
- CircuitShield™ protection suite: OCP, OVP, UVP, SCP, OPP
- Quiet 120mm fan with intelligent thermal control
Why You'll Love It
Whether you're building a high-end gaming rig or a workstation, the CSK 850W Pro offers the reliability and future-proofing you need. Its semi-modular design simplifies installation, while the robust protections keep your components safe. Enjoy stable power delivery and peace of mind.
📋 View full supplier specifications →
The Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply offers a powerful blend of efficiency, performance, and reliability, making it an ideal choice for modern gaming and professional PC builds. Certified for ATX 3.1 and PCIe 5.1 standards, this PSU is designed to meet the rigorous demands of cutting-edge hardware, including seamless compatibility with NVIDIA® GeForce RTX™ 40 Series GPUs via its 12V-2x6 PCIe 5.1 GPU cable. With its 850W of Continuous Power and 80 PLUS® Bronze certification, the CSK Pro delivers up to 90% energy efficiency, ensuring a cooler, quieter, and more cost-effective system.
Engineered for durability and safety, the CSK Pro features Antec’s CircuitShield™ suite of industrial-grade protections, including safeguards like OCP, OVP, UVP, SCP, OPP, OTP, SIP, and NLO, providing robust defense against potential electrical issues. Its 120mm silent fan, paired with the Thermal Manager low voltage fan control system, optimizes airflow and temperature management, allowing for quiet and stable operation even under heavy loads. The compact design of this PSU makes it compatible with a wide range of PC cases, offering versatility for diverse build configurations.
The semi-modular cable system of the CSK Pro enables a streamlined setup, reducing cable clutter and enhancing internal airflow for improved system cooling. This thoughtful design not only ensures better organization but also contributes to a cleaner overall aesthetic. Backed by Antec’s 5-year warranty, the CSK 850W Pro delivers exceptional value and reliability, making it a top-tier choice for users seeking high-quality power delivery for their advanced systems.
Features:
- ATX 3.1 & PCIe 5.1 Compatible
- 80 Plus® Bronze Certified
- 120mm Silent Fan
- Thermal Manager
- Better cable management and airflow
- Compact Size
Specifications:
- Modularity: Semi-Modular
- Output Capacity: 850W
- Input Voltage: 200-240 V
- Input Current: 5A Max
- Input Frequency Range: 50Hz
- PFC: Active PFC
- Power Good Signal: 100-150ms
- Protection: OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
- Regulatory: TUV / CB / RCM / CE / BIS / UKCA / KC
- Fan: 120mm Silent Fan
- Certifications: 80 Plus Bronze 230V EU
- Connectors:
- 1 x 24 (20+4) pin MB
- 1 x 16 (12+4) pin PCIE 5.1 12V-2x6 (600W)
- 2 x 8 (4+4) pin CPU
- 4 x 8 (6+2) pin PCI-E
- 6 x SATA
- 3 x Molex
- Product Dimensions: 29.65 x 20.3 x 13.0 cm
What’s In The Box:
- Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply - Black x1
Frequently Asked Questions
Is this PSU compatible with RTX 4090?+
Yes, it includes a native 12V-2x6 cable for RTX 40 series GPUs, but for an RTX 4090, a 1000W unit is recommended for optimal headroom.
What is the difference between ATX 3.0 and ATX 3.1?+
ATX 3.1 improves on transient response and includes the updated 12V-2x6 connector for better compatibility with newer GPUs.
Is the cabling fully modular?+
No, it's semi-modular. The 24-pin and CPU cables are fixed, while GPU and peripheral cables are detachable.
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