USB Charging


USB-C, also known as Type-C, is the latest version of the USB standard connector style. The USB-C connector is smaller than the USB-A and has an oval shape, completely symmetrical, and therefore, impossible to insert incorrectly. The simpler shape makes it easier to use since there is no hassle of figuring out which way to insert the cable! USB-C is a standard connector for computers and phones, among other devices such as game consoles and monitors, making it a completely universal port. 

A standard USB-C connector can provide 2.5W of power, which is the same as most USB-A connectors. However, many new devices use a Power Delivery (PD) protocol, which allows a USB-C cable to deliver up to 100W. Due to its versatility and more power, it is likely that more devices will use USB-C ports in the future.


USB-A is the original USB port that most are familiar with. It is a horizontal port with the bottom made for pin connectors, so the cable must be inserted correctly in order for the connection to work. They are found on various electronics from computers, TVs, phone chargers, flash drives, and more. USB-A ports have been used for a long time due to their versatility, reliability, and universality for many electronics around the world.

USB-A has undergone many upgrades over the years, including faster transfer speeds with the USB 3.0 standard. USB-A is one of the easiest ports to recognize on devices and remains a popular USB connector since USB-A often shows up alongside USB-C ports.

USB Power Delivery (PD)

The USB Power Delivery, or USB PD, provides more power delivery and data through one single cable by operating with existing USB systems. In other words, it is a single charging standard made for all USB-enabled devices, without the need for individual USB adapters. This allows for the USB PD to power various devices together, without hassle.

The USB PD Revision 3.1 specification, announced in 2021, enables an update of power through USB-C cables of up to 240W. Before this update, USB PD was restricted to 100W with a 20V USB-C cable. Updating the USB PD protocol and power supply enables USB power delivery to more appliances that require more than 100W to operate. Additionally, voltage supply modes allow the attached device to receive voltages between 15V and up to the maximum fixed voltage of the charger.

The new update ensures that devices are not overcharged, and only provide the necessary amount of power needed. As new devices continue using more power (such as MacBooks, Switches, and more), the USB Power Delivery is likely to become more common as a tool that allows the sharing of power between USB-enabled devices.

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