Antec CSK1000 PRO 1000W ATX 3.1 Power Supply

The Antec CSK1000 PRO is a high-performance 1000W continuous-output power supply unit (PSU), fully compliant with ATX 3.1 and supporting PCIe 5.1 standards. Designed for modern systems, it delivers up to 90% efficiency under typical loads (80 PLUS Bronze certified), and features a semi-modular cable design for improved airflow and simplified cable management.

Key Features

Compliant with ATX 3.1 and PCIe 5.1, including a dedicated 12V-2×6 GPU connector capable of delivering up to 600W.

1000W continuous power output with a powerful single +12V rail delivering up to 83.3A.

Up to 90% efficiency under typical loads, meeting 80 PLUS Bronze (230V EU) standards.

CircuitShield™ protection suite with protections including OCP, OVP, UVP, OPP, OTP, SCP, SIP, and NLO.

Equipped with a 120mm silent fan featuring intelligent thermal management for optimal balance of cooling and quiet operation.

Semi-modular design for cleaner builds—essential cables are fixed, while others are detachable.

Compact form factor measuring 140 × 150 × 86 mm; net weight approximately 2.02 kg.

Backed by a 5-year warranty.

Technical Specifications

Electrical Performance

Cooling & Acoustics

120mm silent fan

Intelligent speed control for optimized noise and temperature levels

Protection Features (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 Protection (NLO)

Connectors

• 1 × 24-pin main motherboard connector
• 2 × 8-pin EPS (4+4) for CPU
• 4 × 8-pin PCIe (6+2) for GPUs
• 1 × 16-pin PCIe 5.1 (12V-2×6)
• 6 × SATA power connectors
• 3 × Molex peripheral connectors

Physical Dimensions & Weight

PSU Size: 140 × 150 × 86 mm
Box Size: 296.5 × 203 × 130 mm
Net Weight: ~2.02 kg
Gross Weight: ~2.55 kg

Certifications

80 PLUS Bronze (230V EU)

Safety approvals: TUV, CB, CE, RCM, BIS, KC, UKCA

In the Box

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

• Wattage: 1000W
• Size/Version: ATX 3.1
• Modular: Semi
• SATA Connections: 6
• Certification: Bronze
• Colour: Black