Antec CSK1000 PRO 1000W ATX 3.1 PSU

Antec CSK1000 PRO | 1000W ATX 3.1 PSU with PCIe 5.1

The Antec CSK1000 PRO 1000W ATX 3.1 Power Supply – 80 PLUS Bronze, Semi-Modular, PCIe 5.1 Ready, 12V-2×6 Connector, Quiet 120mm Fan, UK Plug is a high-performance PSU designed for modern gaming and workstation systems. Fully compliant with ATX 3.1 and PCIe 5.1, it delivers 1000W continuous power with up to 90% efficiency and a quiet 120mm fan for optimal thermal management.

Key Specifications

Powering Next-Gen GPUs with PCIe 5.1

The Antec CSK1000 PRO includes a dedicated 12V-2×6 connector capable of delivering up to 600W directly to PCIe 5.1 GPUs. This ensures stable, uninterrupted power delivery for the latest high-end graphics cards, eliminating the need for dongles or adapters. The single +12V rail provides 83.3A of clean, reliable current for demanding multi-GPU setups.

Semi-Modular Design for Cleaner Builds

With a semi-modular layout, the CSK1000 PRO keeps essential cables permanently attached while allowing non-essential cables to be detached. This reduces cable clutter inside your case, improves airflow, and makes installation faster. The compact 140mm depth fits easily into most ATX cases without sacrificing power delivery.

Quiet Cooling with Intelligent Thermal Management

Equipped with a 120mm silent fan, the PSU uses intelligent speed control to balance cooling performance with noise levels. Under typical loads, the fan remains quiet while maintaining optimal temperatures. The CircuitShield protection suite adds over-voltage, over-current, over-temperature, and surge protection for long-term reliability.

Compact Size, Powerful Performance

Despite its 1000W capacity, the Antec CSK1000 PRO maintains a compact form factor at just 140 × 150 × 86mm and weighs approximately 2.02kg. This makes it suitable for both standard and smaller ATX cases where space is at a premium. The 80 PLUS Bronze certification ensures up to 90% efficiency under typical loads, reducing heat and electricity waste.

Box Contents

• Antec CSK1000 PRO PSU
• Power cable
• Modular cables
• Mounting screws
• User manual

Check Before You Buy

• Confirm your case supports ATX PSUs up to 150mm depth
• Verify your GPU requires PCIe 5.1 or 12V-2×6 connectivity
• Check total system power draw to ensure 1000W is sufficient
• Confirm the included power cable matches your regional outlet

Frequently Asked Questions

Q: Is this PSU compatible with PCIe 5.0 GPUs?

A: Yes, it supports PCIe 5.1 and is fully compatible with PCIe 5.0 GPUs via the 12V-2×6 connector.

Q: What does semi-modular mean for this PSU?

A: Essential cables are permanently attached; additional cables can be added as needed for your build.

Q: Does it come with a UK plug?

A: The product title states UK plug, but confirm with the seller before purchase.

Q: What protections are included?

A: CircuitShield suite includes OCP, OVP, UVP, OPP, OTP, SCP, SIP, and NLO protections.

The Consultant’s Verdict & Warranty

The Antec CSK1000 PRO is ideal for enthusiasts building high-end gaming or content creation systems that require reliable 1000W power with next-gen GPU support. Its PCIe 5.1 readiness, semi-modular design, and quiet operation make it a future-proof choice for demanding builds. Covered by the standard Manufacturer Warranty.