CompTIA A+ 220-1001 Question A-73

A technician is determining the specifications for a desktop computer that will be used at trade shows all over the world. The computer will have the maximum amount of RAM. The CPU, GPU, and storage will be typical of a business workstation. Which of the following system parameters is the MOST important for the technician to consider when choosing a power supply?

A. input voltage
B. Efficiency rating
C. 12V rail amperage
D. Number of SATA connectors

Correct Answer: A