Product Description
The Antec CSK550 DC (model CSK550DC) is a 550-watt ATX 12V 2.52 power supply engineered to deliver solid electrical stability, certified efficiency, and long-term durability for modern mainstream builds and entry-to-midrange gaming PCs. Designed with a DC-to-DC converter topology and Active PFC, it ensures tight voltage regulation on the minor rails (+5V and +3.3V) along with steady continuous power output without power throttling. Achieving 80 PLUS® Bronze certification, it delivers up to 88% efficiency to minimize energy waste and internal operating temperatures. System acoustics and temperatures are balanced by a quiet 120mm silent cooling fan controlled by Antec's low-voltage Thermal Manager sensor system. Featuring a compact 140mm chassis depth for broad compatibility with compact cases, dual 8-pin CPU power connectors, the industrial-grade CircuitShield™ protection suite, and backed by a 5-year warranty, the CSK550 DC delivers dependable day-to-day power delivery.
Key Features
- Modern DC-to-DC Architecture: Dedicated DC-to-DC conversion enhances voltage stability, handles cross-loading smoothly, and fully supports modern CPU low-power sleep states.
- 80 PLUS® Bronze Certified: Reaches up to 88% electrical efficiency under typical loads, reducing heat generation, fan effort, and operational costs.
- Continuous Power Delivery: Provides 550W of continuous power without output throttling to protect performance-critical hardware.
- 120mm Silent Fan with Thermal Manager: Whisper-quiet 120mm fan driven by low-voltage thermal circuitry to balance acoustic comfort with active heat management.
- Compact 140mm Form Factor: Short 140mm depth fits a wide variety of compact and standard ATX computer cases with extra room for cable clearance.
- Dual 8-Pin (4+4) CPU Connectors: Equipped with two separate EPS 8-pin connectors to power modern motherboards requiring dedicated CPU power delivery.
- CircuitShield™ Industrial Protection Suite: Full defense suite covering OCP, OVP, UVP, SCP, OPP, OTP, SIP, and NLO to protect against electrical damage.
- 5-Year Manufacturer Warranty: Backed by Antec’s 5-year warranty coverage and technical customer support.
Product Specifications
| Component / Specification | Technical Details |
|---|---|
| Product Category | PC Power Supply Unit (PSU) |
| Commercial Model | CSK550DC |
| Safety Model | X5000A533XC-24 |
| Chassis Form Factor | ATX 12V 2.52 |
| Continuous Output Capacity | 550 W |
| Cable Management | Non-Modular (Fixed Cabling) |
| Efficiency Certification | 80 PLUS® Bronze (Up to 88% efficiency) |
| Power Factor Correction | Active PFC |
| Power Good Signal | 100 - 500 ms |
| Input Voltage | 100 V - 240 V (Full Range) |
| Input Current | 12 A Max |
| Input Frequency Range | 50 Hz - 60 Hz |
| Cooling Fan | 120mm Silent Fan with Thermal Manager sensor control |
| Operating Temperature | 0°C to 40°C |
| Circuit Protections (CircuitShield™) | OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO |
| Safety & Regulatory Approvals | cTUVus, TUV, CB, RCM, CE, FCC, BSMI, KC, UKCA, ICES, BIS |
| PSU Dimensions (L x W x H) | 140 x 150 x 86 mm (5.51" x 5.91" x 3.39") |
| Retail Packaging Dimensions | 255 x 195 x 100 mm (10.04" x 7.68" x 3.94") |
| Net / Gross Weight | 1.60 kg (3.53 lbs) / 1.90 kg (4.19 lbs) |
| Warranty Period | 5 Years |
| UPC Code (US Variant) | 0-761345-20105-6 |
Connector Configuration
| Connector Type | Quantity | Details |
|---|---|---|
| 24(20+4)-pin Main Motherboard Connector | 1 | Primary motherboard ATX power |
| 8(4+4)-pin CPU / EPS Connectors | 2 | Dedicated processor EPS 12V power |
| 8(6+2)-pin PCI-E Connectors | 2 | Graphics card supplemental power |
| SATA Connectors | 6 | Storage drives and SATA-powered accessories |
| Molex (4-pin Peripheral) Connectors | 3 | Legacy accessories, fan hubs, and auxiliary devices |
Other Available Options
In accordance with Quebec's Bill 29, our company and its affiliated partners expressly declare that we cannot guarantee the availability of spare parts, repair services, or the necessary information for the maintenance or repair of our products. For any questions regarding availability, please consult the manufacturer's website(s) directly. Learn more
This information does not limit the good working order warranty or other legal warranties. CIPC remains responsible for honouring applicable warranties.