Antec 850W CSK850 PRO EC 80+ Bronze Semi-Modular A

850 W
Ratings
BrandMore from Antec
Delivered between Mon, 19.1. and Wed, 21.1.
Only 3 pieces in stock at supplier
free shipping

Performance2

Product details

Introducing our CSK Pro ATX3.1 semi-modular power supply, designed with quality, efficiency, and performance. The CircuitShield suite of industrial-grade protections ensures the power delivered to your system is safe and reliable in any environment. Advancing with ATX 3.1 and PCIe 5.1 compatibility, featuring 80 PLUS Bronze certification, and coming with Antec’s 5-year warranty, CSK Pro ATX3.1 provides you with an impressive price-performance ratio.

ATX 3.1 and 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.

Key specifications

80 PLUS certificate
Bronze
Form factor
ATX
Modularity
Partially modular cable management
ATX version
3.1

General information

Item number
57938898
Manufacturer
Antec
Category
Power Supply PC
Manufacturer no.
0-761345-20069-1
Release date
22.4.2025

Colour

Colour
Black
Exact colour description
Black

Power supply properties

Form factor
ATX
ATX version
3.1
Efficiency
90%
80 PLUS certificate
Bronze
Modularity
Partially modular cable management

Cooling properties

Cooling method
Active cooling
Number of fans
1x
Fan diameter
120 mm

Power supply

Power
850 W

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1 x power supply

Product dimensions

Length
14 cm
Width
15 cm
Height
8.60 cm
Weight
1950 g

30-day right of return
36 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Power Supply PC» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Antec
    Not enough data
  • 1.HP
    0.3 %
  • 2.be quiet!
    0.9 %
  • 2.Corsair
    0.9 %
  • 4.Fortron
    1.1 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Antec
    Not enough data
  • 1.Sharkoon
    0 days
  • 1.Xilence
    0 days
  • 3.Corsair
    1 day
  • 3.Intertech
    1 day

Return rate

How often is a product of this brand in the «Power Supply PC» category returned?

Source: Digitec Galaxus
  • Antec
    Not enough data
  • 1.Cooler Master
    2.1 %
  • 2.MSI
    3.4 %
  • 3.Noctua
    3.5 %
  • 4.be quiet!
    3.7 %
Source: Digitec Galaxus