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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://infosec.exchange/users/jernej__s/statuses/114185660853269044">Jernej Simončič � (jernej__s@infosec.exchange)'s status on Friday, 03-Oct-2025 17:28:23 JST</a><a href="https://infosec.exchange/@jernej__s" title="jernej__s@infosec.exchange"><img src="https://gnusocial.jp/avatar/106016-48-20231105202251.webp" width="48" height="48" alt="Jernej Simončič �" style="position: absolute; left: 0; top: 0;">Jernej Simončič �</a><div><a href="https://mastodon.social/@flacs/114185418378384704" rel="in-reply-to">in reply to</a><ul><li></ul></div></section><article><p><a href="https://mastodon.social/@flacs" rel="nofollow">@flacs</a> This made me wonder – how many actually different kinds of USB ports are there?</p><p>These are what I came up with:</p><ol><li>USB-A 1.1</li><li>USB-A 2.0</li><li>USB-A 3.0/3.1gen1/3.2gen1x1 (5Gbps)</li><li>USB-A 3.1gen2/3.2gen2x1 (10Gbps)</li><li>USB-C 2.0</li><li>USB-C 3.0/3.1gen1/3.2gen1x1 (5Gbps)</li><li>USB-C 3.1gen2/3.2gen2x1 (10Gbps)</li><li>USB-C 3.2gen1x2 (10Gbps)</li><li>USB-C 3.2gen2x2 (20Gbps)</li><li>USB-C 4.0 (40Gbps)</li><li>USB-C 4 version 2 (80Gbps, not sure if commercially available yet)</li></ol><p>Do Thunderbolt3 and 4 count as USB? What about USB-C ports that support DP-Alt mode? And I didn't even touch all the possible power delivery options…</p><p>Very universal indeed.</p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4754676#notice-11217412">In conversation</a><time datetime="2025-10-03T17:28:23+09:00" title="Friday, 03-Oct-2025 17:28:23 JST">about 5 months ago</time> <span>from <span><a href="https://infosec.exchange/@jernej__s/114185660853269044" rel="external" title="Sent from infosec.exchange via ActivityPub">infosec.exchange</a></span></span><a href="https://infosec.exchange/@jernej__s/114185660853269044">permalink</a></footer></blockquote>

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Jernej Simončič � (jernej__s@infosec.exchange)'s status on Friday, 03-Oct-2025 17:28:23 JSTJernej Simončič �
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- flacs
@flacs This made me wonder – how many actually different kinds of USB ports are there?
These are what I came up with:
1. USB-A 1.1
2. USB-A 2.0
3. USB-A 3.0/3.1gen1/3.2gen1x1 (5Gbps)
4. USB-A 3.1gen2/3.2gen2x1 (10Gbps)
5. USB-C 2.0
6. USB-C 3.0/3.1gen1/3.2gen1x1 (5Gbps)
7. USB-C 3.1gen2/3.2gen2x1 (10Gbps)
8. USB-C 3.2gen1x2 (10Gbps)
9. USB-C 3.2gen2x2 (20Gbps)
10. USB-C 4.0 (40Gbps)
11. USB-C 4 version 2 (80Gbps, not sure if commercially available yet)
Do Thunderbolt3 and 4 count as USB? What about USB-C ports that support DP-Alt mode? And I didn't even touch all the possible power delivery options…
Very universal indeed.
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