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Description
Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year WarrantyThe 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
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.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 2x6 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
True copper battery cables that are high quality
Size: 10ft, Color: 4awg
I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars.
These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads.
The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Will buy again
Size: 4/0 AWG 10FT Red & Black, Size: 4/0 AWG 10FT Red & Black
Excellent . Bought these to install a 5000 watt inverter . Arrived a little late but these cables are exactly as described. I needed 10 ft but ended up using like 9 ft. These are extremely flexible and of very good quality . Highly recommended and will buy again
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Reviewed in the United States on December 5, 2025
★★★★★ 1
Poor quality and false advertising in size
Size: 4/0 AWG 10FT Red & Black
A complete fraud. I ordered 4/0 but got 4 gauge. The description & picture was correct, but someone doesn’t know the difference in 4 gauge and 4/0. AND the jacket insulation was cheap and translucent, not solid color and supple/flexible. Poor product quality and completely misleading.
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Reviewed in the United States on October 16, 2025
★★★★★ 5
Well made, a solid connection.
Size: 6 Pairs / 12 pcs
I liked them. They really lock down on the speaker wire to make a firm connection. They seem well made and are easy to install. My system sounds great.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Works as intended
Size: 12 Pairs / 24 pcs
These banana plugs are quite easy to use, and securely connected my speaker cables to the receiver. They have a quality feel as well.
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Reviewed in the United States on July 27, 2025