CompTIA A+ 220-1001: Connectors

Expected Duration
Lesson Objectives
Course Number
Expertise Level


Computers require several different connectors and converters. In this course, you will explore some of the most common connector types, such as RJ-45, USB, and Lightning. Learners will first look at the physical connectors for RJ-11 and RJ-45 cabling then move on to RS-232 ports. Next, take a look at the Bayonet Neill-Concelman Connector (BNC), and the RG-6 and RG-59 physical connectors. Then you will learn about connectors used with the Universal Serial Bus (USB), including micro, mini, and USB-C. You will then focus on the DB9 connector and when to use it, and also look at the benefits of using Lightning connectors. This leads to a review of connectors used with the Small Computer System Interface (SCSI) and the External Serial Advanced Technology, or eSATA interface. Then learn more about the Molex connector, which provides the power for your internal PC components. Conclude with an exercise on differentiating between various connectors. This course can be used to help prepare for the 220-1001: CompTIA A+ certification exam.

Expected Duration (hours)

Lesson Objectives

CompTIA A+ 220-1001: Connectors

  • differentiate between RJ-11 and RJ-45 connectors
  • describe RS-232 connectors
  • describe when to use BNC connectors
  • differentiate between RG-6 and RG-59 connectors
  • list the available USB connectors including micro, mini, and USB-C
  • describe when to use DB-9 connectors
  • list the benefits of using Lightning connectors
  • describe when to use SCSI connectors
  • identify eSATA connectors
  • describe when to use Molex connectors
  • work with connectors
  • Course Number:

    Expertise Level