Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply

Antec

Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply

SKU CSK850 PRO
R 1,339.00 ZAR

No VAT added at checkout.

Save R 40.17 (3%) when you pay by EFT bank transfer. Choose Bank deposit at checkout and we'll apply the saving after you order.

or 6 × R 223.16 interest-free Stitch Payflex
or
with mobicred (interest and fees apply)
In stock — 8 available
  • Registered SA company (Reg. 2025/494434/07)
  • Brand-new stock from established SA distributors
  • Secure checkout
Ways to pay Stitch Payflexmobicred

Pay in interest-free instalments

R 669.50 × 2 Total R 1,339.00, no interest
  • Stitch Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.2 × R 669.50
  • PayflexPayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.2 × R 669.50
R 446.33 × 3 Total R 1,339.00, no interest
  • Stitch Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.3 × R 446.33
  • PayflexPayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.3 × R 446.33
R 334.75 × 4 Total R 1,339.00, no interest
  • Stitch Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.4 × R 334.75
  • PayflexPayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.4 × R 334.75
R 223.16 × 6 Total R 1,339.00, no interest
  • Stitch Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.6 × R 223.16
mobicred Mobicred credit accountPay monthly. Interest and fees apply; Mobicred shows the full cost before you accept. Choose Payfast at checkout, then Mobicred. Monthly amount shown under the price
Pay in fullCard, Apple Pay, Google Pay, Capitec Pay, Instant EFT or Zapper Visa Mastercard Apple Pay Google Pay Capitec PayPayFast Instant EFTZapper

Instalments are interest-free if you pay on time and are subject to the provider's approval and terms. Any delivery fee is added at checkout. The last instalment may differ by a few cents.

  • R 150 deliveryFree on orders of R 2,500 or more
  • 2–5 business daysDelivery, nationwide
  • 60 months warrantyIncluded with this product
  • 7-day returnsChange of mind. Refund policy

Overview

About this product

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 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

Good to know

Shipping, warranty and common questions

Shipping

Delivery is free on orders of R2,500 or more. Below R2,500 a R150 delivery fee applies, shown at checkout before you pay.

Orders are processed within 1–2 business days after payment confirmation.

Orders are only processed once funds have cleared in the Vorax bank account.

Once your order is shipped, you will receive an email notification with your tracking details.

Read our full shipping policy

Warranty & refunds

Where a product's warranty is listed on its page, that is the warranty you get. Products without a listed warranty carry a minimum 6-month warranty from the date of purchase, and a longer manufacturer warranty might apply.

Shipping for approved replacements or repairs is covered by us.

Unwanted products (change of mind) must be returned within 7 calendar days of delivery, unused, in original packaging and suitable for resale.

All returned items are subject to inspection before a refund is approved.

Read our full refund and warranty policy

How long does order processing take?

We process all orders within 1–2 business days once payment has cleared. You will receive an email confirmation once your order is on its way.

How long does delivery take?

Once dispatched, delivery takes 1–3 business days depending on your location. Including processing, total delivery time is 2–5 business days from the date you order.

Do you ship everywhere in South Africa?

Yes, we offer nationwide shipping. Certain high-risk or no-go areas may experience delays, and we will contact you if this applies to your address.

What payment methods do you accept?

We accept Visa and Mastercard cards, interest-free instalments with Stitch Pay Later (subject to approval), Instant EFT, Zapper, Mobicred and direct bank transfer (EFT). The options available for your order are shown at checkout. Orders are only processed once payment has cleared.

Pay by direct bank transfer and save 3%: choose Bank deposit at checkout. Checkout shows the full price; once your order is placed we apply the 3% and email your reduced total within 1 business day. Pay that amount, using your order number as the reference. If you have already paid the full amount, we refund the 3% to you. The saving does not apply to Instant EFT or other payment methods.

What if the item I want is out of stock?

Items marked out of stock cannot be purchased directly on the website. You are welcome to contact us and we may be able to arrange a manual backorder, subject to supplier availability.

Manual backorders are processed only after full payment via EFT or secure payment link, and lead times vary depending on supplier stock.

Can I track my order?

Yes. Once your order is shipped you will receive a tracking number by email so you can monitor delivery.