4/5/2023 0 Comments Usb vs usb 2 vs usb 3 voltage![]() It is capable to output power in different voltages simultaneous to the data transfer. It gives more output power than the default power range of the existing USB standard. USB Power Delivery (USB-PD) is the latest technology for USB ports. Note: SDP and DCP protocols are capable to deliver excess power than the default power output of the existing USB standard. The major usage of DCP is in the USB power modules. ![]() Dedicated Charging Port (DCP): DCP is also called a wall charger.Charging Downstream Port (CDP): CDP delivers power and data up to 1.5A.Standard Downstream Port (SDP): SDP supports the default power of the existing USB standard.These are standard downstream ports, charging downstream ports, and dedicated charging ports. ![]() Read also: 10 USB Pinout Explained- USB A, B, C(Male and Female) Different types of USB ports based on current specificationsīased on the output current specification, there are three types of USB ports. Note: A major reason behind the higher power output of the USB3x is that it uses the latest protocol. USB 1.0 and 2.0 have 4 pins and 4 wires, while USB 3.0 has 9 pins and 9 wires It is nearly double as compared to the above two standards. The voltage-current specifications of USB 3x are with a total power output of 4.5 watts. This is due to an add-on feature on battery charging while data transfer happens. Note: A few USB 2.0 devices are capable of delivering higher power, with a total power output of 7.5 watts. Hence USB 1x and 2.0 are sometimes used interchangeably. But in addition to the common peripherals, USB 2.0 could support flash drives and other similar external hard drives. USB 1.1 also has the same power specification.Īlthough USB 2.0 significantly improved the data transfer features, the output power is nearly the same. Common peripheral devices like a mouse, keyboard, etc work with this output power. The voltage-current specifications of USB 1.0 are, which gives a total power output of 2.5 watts. The other differences are mentioned in the table below. ![]() While the USB 3x supports a higher power transfer capability, i.e., 4.5 watts. The USB 1x and 2.0 version allows a maximum power transfer of 2.5 watts. ![]()
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