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Difference between USB 2.0, USB 3.0 and USB C

Difference between USB 2.0, USB 3.0 and USB C
The USB 2.0, USB 3.0 and USB-C connectors share several characteristics but they do have some key differences that need to be understood so that you can choose which connector to use at any given time and application.

USB 2.0 was originally released in April 2000, and it was a significant update to the original USB standard. It doubled the data transfer speed of USB 1.1 (from 12 Mbps to 480 Mbps), which helped make it more suitable for video playback.

The USB 3.0 standard was introduced in November 2008, and it has been widely adopted by computer manufacturers. This version of the USB interface offers faster transfer speeds than its predecessor and allows devices to communicate at up to 5 Gbps. The standard was developed to be backward-compatible with previous versions of USB, so it’s possible for a device or cable manufacturer to implement either USB 2.0 or USB 3.0 technology into their products without affecting functionality. Compared to USB 2.0 and 1.1, the USB 3.0 standard offers faster transfer speeds, more power for devices that need it and support for super-speed transfers of up to 5 gigabits per second (Gbps). That’s about 10 times faster than USB 2.0 (480 Mbps), which is roughly as fast as FireWire 400 (400 Mbps) and eSATA (600 Mbps).

The USB 3.1 standard was released in July 2013 as a supplement to the USB 3.0 standard, adding new power delivery specifications and other improvements. The most significant change is that it allows for up to 100 watts of power delivery over the USB Type-C connector that’s used on both ends of a cable, as opposed to the 5 volts/5 watts allowed by USB 3.0. This is important for devices that need more power than what’s available through a standard USB port, such as external hard drives and laptops (which can often be charged from their USB ports). This enables USB 3.1 Gen 2 cables to charge laptops and other devices that use large amounts of power. USB 3.1 Type-C connectors can also carry DisplayPort 1.2 signals, which allows for video resolutions of up to 4K (3840x2160) at 60 frames per second (fps). It also enables faster data transfer speeds of up to 10 gigabits per second (Gbps), which is about twice as fast as USB 3.0 (5 Gbps).

USB-C is a new and improved version of USB 3.1, which was announced in 2014. Like USB 3.1, USB-C supports faster data transfer speeds, power delivery and video output over a single cable. USB-C also can be used as a power connector, similar to USB 2.0/3.0 and other connectors such as Apple’s MagSafe and Lightning. The main difference between USB-C and USB 3.1 is that they use different physical connectors: USB 3.1 uses the same micro-B connector that was introduced with USB 1.0 back in 2000; while USB-C uses a reversible plug (similar to Apple’s Lightning cables). However, USB-C is more compact and features a smaller connector than USB 3.1’s rectangular connector. This makes it easier to plug into devices that have limited space on their sides such as laptops and smartphones. The main difference is that USB-C connectors support bi-directional power, which means devices can either send or receive electricity over the same cable. That’s useful for things like charging laptops and mobile devices without having to carry an extra charger around. It also makes it easier to power accessories such as monitors or hard drives while they’re connected to a computer using HDMI, DisplayPort or other video standards.
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