SKU: 88632622917

Antec CSK 850W Pro Semi-Modular ATX 3.1 Power Supply

Sale price$659.15 Regular price$732.39
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Antec CSK 850W Pro Semi-Modular ATX 3.1 Power SupplyThe 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.

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 MB1 x 16 (12+4) pin PCIE 5.1 12V-2x6 (600W)2 x 8 (4+4) pin CPU4 x 8 (6+2) pin PCI-E6 x SATA3 x Molex
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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 88632622917

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4.6 ★★★★★
Based on 14 reviews
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M
Verified Purchase
Mojooooo
Draper, US
★★★★★ 5
Perfect!! I’m obsessed!
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
So cute and great for travel! Lots of organization areas, easy to use, very durable and not made cheap, the zipper closes just fine and it’s compact for traveling or storing under the sink.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
P
Verified Purchase
Parish
Phoenix, US
★★★★★ 5
Jewelry travel case
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Blue
Well made. Useful for youth girls, lots of space for earing jobs, chains, rings. It's compact travel case very cute.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
A
Verified Purchase
Andrea C
Birmingham, US
★★★★★ 5
Great little jewelry box!
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
Great little jewelry box for quick vacations! Lots of compartments so my jewelry doesn't get lost or tangled! Love the pouch for bracelets, the hooks for my necklaces, the little board with holes for my earrings and the slots for my rings. Made really well and pretty also! Would make a Nice gift!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
S
Verified Purchase
Sabrina Luna
Massapequa, US
★★★★★ 5
Necessary for travel
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Purple
This is really cute and looks classy. Quality is very nice. The only thing is the hooks for the necklaces didn’t keep them on, but everything else about this is a must for traveling and not losing or tangling up your jewelry.
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Reviewed in the United States on May 23, 2026
A
Verified Purchase
Alyssa McBride
Alexandria, US
★★★★★ 5
LOVE IT!
Size: Large (8.2"W*4.2"D*2.4"H), Color: Beige
I love it. It’s very pretty and simple, in a good way. I plan to use it for all my jewelry and not just for travel. I like that it has a lot of hooks for necklaces and plenty of space for earring and rings. The fabric inside and out seem to be good quality. It’s well made and zips easily. The structure is sturdy as well. The color (white) is just as depicted. I think I got the larger size but it doesn’t feel bulky at all. I like that it comes with an extra pouch for bulkier items. It’s one of the best jewelry boxes I’ve had!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026

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