Antec CSK1000 PRO ATX3.1 Semi-Modular 1000W Power Supply (80 PLUS Bronze- PCIe 5.1- ATX 3.1 Certified)

CSK1000 PRO
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FEATURES

  • 1000W continuous power delivery with high-load stability
  • Certified ATX 3.1 for modern power requirements and power excursion management
  • PCIe 5.1 ready with 12V-2x6 (600W) connector for latest GPU standards
  • 80 PLUS® Bronze Certified (up to 90% efficiency at typical loads)
  • Semi-modular layout for improved cable management and airflow
  • 120mm low-noise fan with intelligent thermal control (Thermal Manager)
  • Industrial-grade CircuitShield™ protection: OVP, OCP, OTP, OPP, SCP, SIP, NLO
  • Five-year warranty backed by Antec’s global support infrastructure
R1,655 incl. VAT
R1,440 excl. VAT
FREE DELIVERY

IN STOCK at EXTERNAL supplier.
If ordered before 10AM:
DELIVERED next business day (main centres)
or 3-5 business days (regional areas or large items)
COLLECTION from GeeWiz available Same Day (approx 4:30pm)

Or as low as R552 over 6 months interest-free, using your existing credit card. How it works

Volume discounts

Quantity Price You Save
5 R1,622 2%
10 R1,589 4%
30+ click to email

Quantity

The Antec CSK1000 PRO ATX3.1 is more than a power supply. It’s the electrical backbone of your high-performance PC, engineered with precision to support next-generation systems with unwavering reliability and operational efficiency. Drawing from Antec’s legacy of innovation, trusted by builders and gamers alike, the Antec CSK1000 PRO is designed to handle the demands of modern computing environments with intelligence, versatility, and confidence.

At its core lies a 1000W continuous power output, certified under 80 PLUS® Bronze standards to deliver up to 90% efficiency under typical loads. This translates into reduced energy consumption, lower thermal output, and ultimately, a more stable platform for your most intensive tasks—whether you're rendering large-scale assets, deep into a gaming session, or running demanding productivity suites.

The CSK1000 PRO is fully ATX 3.1 certified, meeting the latest Intel power delivery specifications. It also introduces support for PCIe 5.1, with a dedicated 12V-2x6 connector (capable of delivering up to 600W) designed to power the newest generation of graphics cards, including the NVIDIA® GeForce RTX™ 40 Series. This forward-compatible approach makes it an ideal choice for users building today with tomorrow in mind.

The semi-modular layout gives you the flexibility to customise cable routing based on your build, improving airflow and minimising clutter. Pre-attached essential cables reduce setup time, while detachable connectors provide additional configuration freedom. The result is a cleaner, more breathable system interior, particularly valuable for airflow-optimised cases and minimalist builds.

Engineered for silence as much as performance, the Antec CSK1000 PRO features a 120mm silent fan governed by Antec’s proprietary Thermal Manager system. This intelligent fan control algorithm adjusts speed in real-time based on system load and temperature, delivering the cooling you need without excessive noise, perfect for both high-performance gaming environments and creative workstations where acoustic balance is key.

Underpinning it all is CircuitShield™, Antec’s comprehensive suite of industrial-grade protections. From Over Voltage Protection (OVP) and Over Temperature Protection (OTP) to Short Circuit and Surge Protection (SCP and SIP), the Antec CSK1000 PRO actively defends both itself and your system components against irregularities and power anomalies.

Compact in size yet robust in output, the 140mm chassis ensures compatibility with a wide range of enclosures, giving builders the freedom to design without compromise. Every detail—from the clean cable layout to the reinforced components—is a reflection of Antec’s commitment to quality, dependability, and purposeful engineering.

For those seeking a PSU that matches technical excellence with system-level harmony, the Antec CSK1000 PRO ATX3.1 is a power solution you can build around, with assurance.

FEATURES

  • 1000W continuous power delivery with high-load stability
  • Certified ATX 3.1 for modern power requirements and power excursion management
  • PCIe 5.1 ready with 12V-2x6 (600W) connector for latest GPU standards
  • 80 PLUS® Bronze Certified (up to 90% efficiency at typical loads)
  • Semi-modular layout for improved cable management and airflow
  • 120mm low-noise fan with intelligent thermal control (Thermal Manager)
  • Industrial-grade CircuitShield™ protection: OVP, OCP, OTP, OPP, SCP, SIP, NLO
  • Five-year warranty backed by Antec’s global support infrastructure

SPECIFICATIONS

Electrical Output

 

  • Total Capacity: 1000W Continuous
  • Input Voltage: 200V–240V
  • Input Current: Up to 6A
  • Input Frequency: 50Hz–60Hz
  • Power Good Signal: 100–150ms
  • Power Factor Correction: Active PFC
  • Efficiency: 80 PLUS Bronze Certified
  • Operating Temperature: 0°C to 40°C

Connectivity & Cabling

  • Motherboard: 1 × 24 (20+4) pin
  • CPU: 2 × 8 (4+4) pin
  • PCIe: 4 × 8 (6+2) pin
  • PCIe 5.1: 1 × 16 (12+4) pin 12V-2x6 (600W)
  • SATA: 6 × SATA connectors
  • Molex: 3 × 4-pin Molex

Cooling & Acoustics

  • Fan: 120mm silent fan
  • Control: Thermal Manager smart fan curve
  • Acoustic Profile: Low-noise operation under all load conditions
  • Safety & Protection (CircuitShield™)
  • Over Voltage Protection (OVP)
  • Over Current Protection (OCP)
  • Under Voltage Protection (UVP)
  • Over Power Protection (OPP)
  • Over Temperature Protection (OTP)
  • Short Circuit Protection (SCP)
  • Surge & Inrush Protection (SIP)
  • No Load Operation (NLO)

Certifications

  • 80 PLUS Bronze 230V EU
  • TUV, CB, CE, RCM, BIS, KC, UKCA

Physical Dimensions

  • PSU Dimensions: 14cm (L) × 15cm (W) × 8.6cm (H)
  • Box Dimensions: 29.65cm × 20.3cm × 13cm
  • Net Weight: 2020g
  • Gross Weight: 2550g

Regional UPC Codes

  • EC: 0-761345-20073-8
  • Australia: 0-761345-20074-5
  • Great Britain: 0-761345-20075-2
  • Thailand: 0-761345-20076-9

WHAT'S IN THE  BOX

  • Antec CSK1000 PRO ATX3.1 Power Supply Unit × 1
  • Power Cable × 1
  • Modular Cable Set × 1
  • Mounting Screws × 1
  • User Manual × 1
Antec
CSK1000 PRO
  • Returns Policy
  • Return of merchandise (RMA) and Warranty

    We want you to be happy with the purchase you have made from us. If you are not completely satisfied, you may return the product to us and we will either refund, credit, repair/replace it, subject to the below terms and conditions. 

    You can return purchases for a refund (excl shipping). Please notify us within 7 days and ensure item is ready maximum 10 days after delivery date.

    Please ensure to log your return request within 7 days of receipt of your item. Please ensure to select the correct reason for return:

    - Changed my mind / Item exchange

    - Faulty on arrival

    - Incorrect item received

    All items are covered by a 12 month warranty (unless otherwise stated) which will be honoured directly by GeeWiz. All products will either be replaced/repaired/refunded depending on stock availability. Products will require evaluation by GeeWiz before a warranty claim can be accepted.

    Should the item being returned for assessment be found to be in good working order, unfortunately, there will be a collection fee that will apply.

    The collection fees are as follows:

    - For returns on items that were sent with free shipping: R198

    - For returns that had a surcharge, the same surcharge will apply for collection.

    Please log your return on your account, under the returns manager.

    We do not reimburse your fee to ship to us, but we will pay for return shipping if the item is subject to replacement. If the item you wish to return was ordered incorrectly / is no longer required / you have changed your mind, there is a collection fee that will be charged (please refer to the above) and this will be deducted from the refund amount once the supplier has credited us. Please note GeeWiz will only cover return shipping of a faulty unit within 6 months of purchase, after which, a shipping fee (starting from R198) will be applicable to you for the return of the unit.

    Any disputes relating to ordered items being short/incorrectly shipped will only be entertained if reported to GeeWiz within 3 days of delivery/collection.

    Refunds are subject to inspection of item(s) - in some cases, items will need to be sent to supplier for evaluation and testing. This can take up to 15 working days. Once a refund has been approved, this may take 3 - 5 business days to be processed.

    ALL returns are subject to up to a 30% restocking fee if item is no longer in BRAND NEW condition or if item seal/packaging has been broken.

    Please re-package safely and include all original product packaging.  

    All software products are unfortunately not eligible for credit or refund once purchased.

    After the 6-month period, you will no longer be eligible and won't be able to receive a refund. We can however replace or repair depending on the outcome after our team of professionals has inspected the product.

    Should a warranty sticker not be present on an item, the warranty is immediately null and void.

    Batteries are covered under warranty, but please note that GEL, AGM and LEAD ACID have limited cycle runs. These are typically around 200 cycles and may run out before the end of the warranty. Once the cycles have been depleted, it means the battery has reached the end of life and will no longer be a warranty claim.

    GeeWiz reserves the right to refuse a refund if the item is damaged from misuse, items are missing, or if the product is altered in any way. 

    GeeWiz or its affiliates are not responsible for damage or loss of any kind that may occur as a result of using or misusing any product purchased from us.

    The warranty will no longer be valid, and GeeWiz will not be responsible for damage or injury of any kind resulting from:

    • Electricity fluctuations and surges, lightning strikes, faults in the building wiring, faulty installations, and improper use of controls
    • Failure to use the product in accordance with the operating instructions and or general misuse and or abuse
    • Damage caused by a superior force (vis major) or if the product has been infested with insects or pests
    • If the product is physically damaged after it left the store
    • If water or liquid caused the damage to the product
    • If the warranty seal is tampered with
    • Any repair or tampering by an unauthorised person or attempt to repair or tamper with the equipment, or use of parts not supplied by authorised agents, or alterations or modification to the equipment shall render the warranty null and void.

    For hygiene purposes.

    Please note we cannot accept returns for apparel that has been worn, stained, frayed, or otherwise shows signs of use.

    We can only accept returns for items that are damaged upon receipt or are faulty.

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