Antec CSK550DC 550W Power Supply Unit

The Antec CSK550DC delivers reliable 550W continuous power output for mainstream and gaming PC builds. Certified to 80 Plus Bronze standards with up to 88% efficiency, this ATX 12V 2.52 power supply combines dependable performance with cost-effective operation.

DC-to-DC Architecture and Active PFC

Built with DC-to-DC conversion technology and active Power Factor Correction, the CSK550DC ensures stable voltage regulation across all rails. The single +12V rail provides 45.8A of current, delivering consistent power to modern components including high-performance graphics cards through reinforced PCI-E 5.1 connectors.

CircuitShield Protection System

Antec's comprehensive CircuitShield protection safeguards your components with eight independent safety mechanisms: Over Current Protection (OCP), Over Voltage Protection (OVP), Under Voltage Protection (UVP), Short Circuit Protection (SCP), Over Power Protection (OPP), Over Temperature Protection (OTP), Surge & Inrush Protection (SIP), and No Load Operation (NLO).

Efficient Cooling and Cable Design

The 120mm temperature-controlled fan adjusts speed based on thermal load, maintaining quiet operation while ensuring adequate cooling. Non-modular flat black cables improve airflow within your case and simplify cable routing compared to traditional round cables.

Comprehensive Connectivity

The CSK550DC includes all essential connectors: 1x 24-pin ATX main connector, 2x 8-pin (4+4) EPS for CPU power, 2x 8-pin (6+2) PCIe for graphics cards, 6x SATA, and 3x Molex connectors. This configuration supports multi-drive setups and various peripheral requirements.

Compact ATX Design

Measuring 140 x 150 x 86mm and weighing 1.60kg, this compact ATX power supply fits standard ATX-compatible cases. The unit operates reliably within 0°C to 40°C ambient temperatures and accepts universal input voltage (100-240V AC, 50-60Hz).

Certifications and Warranty

The CSK550DC holds multiple international safety certifications including cTUVus, TUV, CB, RCM, CE, FCC, BSMI, KC, UKCA, ICES, and BIS. Antec backs this power supply with a comprehensive 5-year manufacturer warranty.

Full Specifications

Model:
CSK550DC

MPN:
0-761345-20103-2

Form Factor:
ATX 12V 2.52

Output Capacity:
550 W Continuous

+12V Rail:
Single Rail, 45.8 A

Efficiency:
Up to 88%, 80 Plus Bronze Certified

Architecture:
DC-to-DC

Power Factor Correction:
Active PFC

Input Voltage:
100–240 V AC

Input Frequency:
50–60 Hz

Input Current:
Maximum 12 A

Power Good Signal:
100–500 ms

Protections:
OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO (CircuitShield)

Cooling:
120 mm Temperature-Controlled Fan

Operating Temperature:
0 °C to 40 °C

Dimensions:
140 x 150 x 86 mm

Net Weight:
1.60 kg

Gross Weight:
1.90 kg

Connectors:
1x 24-pin ATX Main
2x 8-pin (4+4) EPS
2x 8-pin (6+2) PCIe
6x SATA
3x Molex

Cable Type:
Non-modular, Flat Black Cables

Certifications:
cTUVus, TUV, CB, RCM, CE, FCC, BSMI, KC, UKCA, ICES, BIS

Warranty:
5 Years Manufacturer Warranty

• Wattage: 550W
• Size/Version: ATX
• Modular: No
• SATA Connections: 6
• Certification: Bronze
• Colour: Black