Antec’s new generation Cuprum Strike Bronze power supply is crafted for quality, efficiency, and performance. Featuring 80 PLUS® BRONZE certification, a quiet 120 mm fan, CSK Bronze includes Antec’s 3 year warranty. The CircuitShield™ suite of industrial-grade protections ensure that the power delivered to your system is safe and reliable in any environment.
80 PLUS® Bronze certified
Delivering up to 88% efficiency, the CSK Bronze Series utilize active PFC, giving you a cooler, quieter system, all powered by Continuous Power.
Input / Output
3-Year Warranty
We stand by the quality and safety of the CSK Bronze Power Supplies, offering a 3-year parts and labor warranty and unlimited access to our incomparable technical support and customer service.
120 mm Silent Fan
The 120 mm silent fan is ideal for quite computing and is designed for longer lifetime, guaranteeing hours of operation.
Cable Qty & length
Product Name CSK550
Model Name X5000A253HC-20
Type ATX 12V 2.31
Dimension  140(L) x 150(W) x 86(H)
Warranty 3 years
Input Voltage 100 ~ 240 VAC
Input Current 10A ~ 5A
Input Frequency Range 50Hz ~ 60Hz
PFC Active PFC 
Power Good Signal 100 ~ 500ms
Efficiency 88% Typically
Output Capacity 550W
Operation Temperature 0 ~ 40°C
Fan 120mm Silence Fan
Certifications 80 Plus Bronze 
Connector 1 x MB 24(20+4) Pin
1 x 8(4+4) Pin EPS 12V
2 x 8(6+2) Pin PCI-E
7 x SATA 
2 x Molex
1 x FDD
UPC# 0-761345-11739-5 CSK550
0-761345-11740-1 CSK550 AU
0-761345-11741-8 CSK550 EC
0-761345-11742-5 CSK550 GB
0-761345-11743-2 CSK550 JP
0-761345-11744-9 CSK550 CN
Net Weight 1.53 Kgs
Gross Weight 1.71 Kgs