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Study Guide: CompTIA A+ Core Certification: Power Levels for Different Connector Types
Source: https://www.fatskills.com/comptia-a-exam/chapter/comptia-a-core-certification-power-levels-for-different-connector-types

CompTIA A+ Core Certification: Power Levels for Different Connector Types

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~1 min read
Connector +5V +12V +3.3V Notes
Molex Yes Yes No Used today primarily for case fans that do not connect to the motherboard or that can be adapted to SATA drives
Berg Yes Yes No Used for power by some add-on cards
SATA Yes Yes Optional Requires using a Molex-to-SATA power connector if the power supply lacks adequate SATA connectors
PCIe 6-pin No Yes No Midrange PCIe video cards
PCIe 8-pin No Yes No High-performance PCIe video cards
ATX12V No Yes No Most recent and current motherboards, except those using EPS12V
EPS12V No Yes No Split into two ATX12V-compatible sections

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