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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 Warranty

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 Warranty

Regular price £70.95 GBP
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Customer reviews

What customers say about Wzrd tech

96.5%positive from 217 customer ratings in the last 12 months

Seller ratings · last 12 months

Postage cost 5.0 out of 5(100)
Delivery time 4.5 out of 5(64)
Communication 4.5 out of 5(69)

“what a good seller, item arrived early, well packaged and in perfect condition. couldn't be happier wouldn't hesitate to buy from this seller again. a great price also. thankyou thankyou thankyou.”

✓ Verified buyerBought: Samsung Galaxy J5

“Description and photos 100% accurate. For condition, battery time.. without doubt, the best used mobile I've ever purchased. Delivery and packaging excellent.”

✓ Verified buyerBought: Xiaomi 11T Pro

“Condition as described - just a cracked screen and working perfectly. Good value Good delivery and packaging would buy again.”

✓ Verified buyerBought: Samsung Galaxy XCover Pro

“Arrived very fast well packed and excellent condition great communication”

✓ Verified buyerBought: Samsung Galaxy Xcover 5

“Great communication, fast delivery and item as described - thank you!”

✓ Verified buyerBought: Xiaomi Mi 11 Lite 5G NE

“Fast delivery, item packed well and as described. Thanks!”

✓ Verified buyerBought: Xiaomi 11T Pro

“My handheld console was posted very quickly and it arrived safely and well wrapped, the condition is as good as new and the box is also perfect with all the accessories originally included, this was great value for money and I can recommend this seller as I would happily buy from again”

✓ Verified buyerBought: Antec Core handheld console

“Exactly as advertised. Fast and friendly comms. Good seller. Thank you.”

✓ Verified buyerBought: Nintendo Switch

“Good seller. Item just as described with fast delivery. Thank you.”

✓ Verified buyerBought: PS4/PS5 thumb grips

“Fast delivery, great item. Highly recommended seller, thanks!”

✓ Verified buyerBought: Apple Watch strap

“Good speedy delivery, item as described. Thanks”

✓ Verified buyerBought: Apple Watch strap

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Product Description

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 and return

Shipping

Our Products are currently shipped using Royal Mail tracked services, but some larger orders may be shipped via DPD.

We Dispatch orders once confirmed Payment is received from this date you should receive your order within 48 hours.

Please note during peak times dispatch times may increase.

Returns

We offer 14 day change of mind returns for non consumable items in a unopened and unused state.

For more information and instructions on how to open a return please visit our "Refund Policy" page in the footer of this website.

Thank you and enjoy your day,

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