![]() ![]() Be sure to know what the ports on your Mac are if you have one. ![]() The protocol defines the physical layer of communication, signalling standard, decoding and encoding scheme, speed, data transfer rate and many more parameters. For example, the discontinued 12-inch MacBook had a USB-C port that wasn't Thunderbolt-equipped. Answer (1 of 3): USB 2.0 is a USB protocol specification. However, like the USB 3 standard, not all USB-C cables and ports support Thunderbolt 3 or 4. Thunderbolt 3 is capable of transfer speeds up to 5GB/second. ![]() Starting with the Thunderbolt 3 standard, it now uses the USB-C connector. This is an interface developed by Intel and Apple that allows for much faster connections when transferring data. While we're discussing USB standards, it's important to also mention Thunderbolt. And keep in mind that these transfer rates are all theoretical maximums the real-world speeds probably won't reach those heights. You'll just be limited to the slowest speed supported by either device or the cable. These standards are all backward-compatible, so if you plug a USB 3.2 Gen 2x2 cable into a USB 3.0 slot, it will work fine. Marketers like to use general terms like "USB 3.2" without specifying the generation, so make sure you know what you're actually getting. If youre considering whether to use USB 2.0 or USB 3.0 cables for your installation, we recommend using 3.0 for purposes of future compatibility. But this standard is still in its early stages, and is thus not widely available at the time of writing.īecause of these overlapping terms that are easy to confuse, it's important to check the specific details on a cable (or device) before you buy it. Looking forward, USB 4 was released in 2019 and only works with USB-C connectors.
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