80 PLUS Verification and Testing Report 92.56% 91.22% YES TYPICAL EFFICIENCY (50% Load): AVERAGE EFFICIENCY : 80 PLUS COMPLIANT: 3086 Cooler Master Co., Ltd RS-550-SPPA-D3 N/A 2012 ATX12V 4/11/2012 150 100 50 0 -50 0 0.003 0.006 0.009 0.012 0.015 -100 -150 Rated Specifications Value Units Input Voltage Input Current Input Frequency Rated Output Power 100-240 7-3.5 60-50 550 Volts Amps Hz Watts -200 Time (s) Voltage Note: All measurements were taken with input voltage at 115 V nominal at 60 Hz. IRMS A 0.58 1.08 2.64 5.43 PF ITHD (%) Load (%) Input Watts 0.96 0.98 0.99 0.99 16.77% 13.82% 9.23% 6.38% 10% 20% 50% 100% 63.76 121.86 300.30 618.60 5 4 3 2 1 0 -1 -2 -3 -4 -5 Current (A) Input Current and Voltage Waveforms 200 Voltage (V) Ecos ID # Manufacturer Model Number Serial Number Year Type Test Date Current Input AC Current Waveform (ITHD = 9.23%, 50% Load) DC Terminal Voltage (V)/ DC Load Current (A) -12V 3.3V 12V (cumulative of 12V1, 12V2, etc.) 12.2/3.5 12/0 3.3/1.4 12.1/7 11.8/0 3.3/2.8 12.1/17.5 11.6/0.1 3.3/7 12.1/34.9 11.9/0.2 3.3/13.9 Input and Output Power 5V 5Vsb 5.1/1.4 5.1/2.8 5.1/7 5.1/13.9 5.1/0.3 5.1/0.5 5.1/1.3 5/2.7 Output Watts 55.71 111.57 277.97 553.97 Efficiency % 87.38% 91.56% 92.56% 89.55% Efficiency of the Power Supply 700.00 100% 90% 600.00 80% Efficiency (%) Power (Watts) 500.00 Input Watts 400.00 300.00 200.00 Output Watts 60% 50% 40% 30% 20% 100.00 10% Efficiency % 0% 0.00 20% 70% 50% 100% Loading (% of Rated Output Power) 0% 25% 50% 75% 100% Loading (% of Rated Output Power) These tests were conducted by a third party independent testing firm on behalf of the 80 PLUS Program. 80 PLUS is a certification program to promote highly-efficient power supplies (greater than 80% efficiency in the active mode) in technology applications. http://www.80plus.org/ 125%