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Flashcards: CompTIA A+ Core 1: Connecting Mobile Devices
Define and describe USB
Universal Serial Bus, an extremely common format for serial file transfer
List the 4 most common USB connectors
A, Mini-B, Micro-B, C
What is the maximum transfer rate of USB 2.0?
480Mbps
What is the maximum transfer rate of USB 3.2 Gen 1 (SuperSpeed 1)?
5Gbps
What is the maximum transfer rate of USB 3.2 Gen 2 (SuperSpeed 2)?
10Gbps
What is the maximum transfer rate of USB 3.2 Gen 2x2 (Superspeed 3)?
20Gbps
What is the maximum transfer rate of USB 4?
40Gbps
How many pins are in a USB-A connector?
4
How many pins are in a USB Mini-B connector?
5
How many pins are in a USB Micro-B connector?
5
How many pins are in a USB-C connector?
24
What is Apple’s proprietary connector called and how many pins does it have?
Lightning, 8
List 2 advantages of Lightning over Micro-B
Higher power output for charging, non-directional
What is the older standard of serial connector called?
DB-9
What is the standard for DB-9?
RS-232
Where are DB-9 connections most common nowadays?
As a configuration port in networking equipment