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Types of USB and Their Technical Specifications. USB (Universal Serial Bus) is a standard that was developed to simplify the connection between computers and peripheral devices. Over the years, several types of USB standards have emerged, each offering different capabilities. Here's a comprehensive guide to the different types of USB, including their technical specifications and comparisons. 1. USB Type-A Description : The original and most recognizable USB connector, typically used in computers, chargers, and peripherals. Specifications : Dimensions : 12.0 mm x 4.5 mm Versions : USB 1.0, USB 2.0, USB 3.0, USB 3.1, USB 3.2 Data Transfer Rates : USB 1.0: 1.5 Mbps (Low Speed) / 12 Mbps (Full Speed) USB 2.0: 480 Mbps (High Speed) USB 3.0: 5 Gbps (SuperSpeed) USB 3.1: 10 Gbps (SuperSpeed+) USB 3.2: 20 Gbps (SuperSpeed+) Power Delivery : Up to 2.5W (0.5A @ 5V) for USB 2.0, up to 4.5W (0.9A @ 5V) for USB 3.0 and above. Use Cases : Connecting keyboards, mice, flash drives, external hard d...