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Antec CSK850 PRO ATX Power Supply, 850W, 80 PLUS Bronze, Semi-modular

 

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Antec
Part no 0-761345-20070-7
Ascent part no 774892
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Introducing our CSK Pro ATX3.1 semi-modular power supply, designed with quality, efficiency, and performance. The CircuitShieldTM suite of industrial-grade protections ensure the power delivered to your system is safe and reliable in any environment. Advancing with ATX 3.1 & PCIe 5.1 compatibility, featuring 80 PLUS® BRONZE certification, and coming with Antec’s 5-year warranty, CSK Pro ATX3.1 provides you the impressive price-performance ratio.

ATX 3.1 & PCIe 5.1 Compatible
Our new CSK Pro ATX3.1 power supplies are certified for ATX 3.1 compliance, meeting the high standards for reliability and power efficiency, and ensuring the utmost level of quality and performance. The included PCIe 5.1 12V-2x6 GPU cable enables seamless compatibility with the latest graphics cards, such as the NVIDIA® GeForce RTX™ 40 Series.

80 Plus® Bronze Certified
Delivering up to 90% efficiency, CSK850 Pro ATX3.1 gives you a cooler and quieter system, powered by the guaranteed 850W of Continuous Power.

5-Year Warranty
Antec commits a 5-year warranty and offers our quality tech support and customer service.

120mm Silent Fan
The whisper-quiet 120mm fan provides high airflow with the durability and longevity that is a Antec signature.

Thermal Manager
Thermal Manager, an advanced low voltage fan control for optimal heat & noise management, allows your PSU to stay at the optimal temperature.

Better cable management and airflow
Semi-modular cable system allows users to use only the necessary cables and eliminates cable clutter that can obstruct and compromise airflow.

Compact Size
Compared to large power supplies on the market,
it is smaller in size and can be used with a wider range of computer cases.

SPECIFICATIONS
Model CSK850 PRO ATX3.1
Safe Model V5000A209A-23
Type ATX 12V 3.1
Dimension  140(L)*150(W)*86(H)
Modular Semi-Modular
Warranty 5 years
Input Voltage 200V-240V
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
Output Capacity 850W
Operation Temperature 0~40°C
Regulatory TUV / CB / RCM / CE / BIS / UKCA / KC
Fan 120mm Silent Fan
Certifications 80 Plus Bronze 230V EU
Connector 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
Box Dimensions 296.5(L) x 203(W) x 130(H) mm
Net Weight 1.95 Kg
Gross Weight 2.47 Kg
UPC# 0-761345-20070-7 CSK850 PRO AU

Extended specs

Product lineCSK
ModelCSK850 PRO
Product nameCSK850 PRO ATX Power Supply
Product typeATX Power Supply
Output power850
ReceptaclesATX 24-pin [20+4] (x1), PCIe 16-pin [12+4] (x2), EPS 8-pin [4+4] (x2), PCIe 8-pin [6+2] (x4), SATA (x6), Peripheral 4-pin (x3)
Notes80 PLUS Bronze, Semi-modular

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Please read our terms and conditions. We try very hard to make sure the specification and images on this page are accurate, but occasionally (and thankfully rarely) mistakes do happen. If you discover the product delivered is not as described, please let us know as soon as possible after delivery so we can correct the mistake and arrange for the product to be returned.

Antec
Part no 0-761345-20070-7
Ascent part no 774892
  • Free NZ deliveryNo hidden fees
  • 100% Kiwi owned34 years in business
  • Net Promoter Score 94Rated by our customers
Questions? (04) 802 3890


"Smooth and easy purchase and delivery." Reuben, 7 October 2026
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