Buying Guides
USB 3.2 Gen 1 vs Gen 2 vs USB4: Decoding the USB Naming Mess
USB 3.2 Gen 1, Gen 2, 2x2, USB4: the names were renamed twice and the marketing never caught up. A translation table for buyers, in plain numbers.
USB naming is the industry's longest-running inside joke, except nobody is laughing. The connector was supposed to simplify everything, and then the standards body renamed the speeds twice, so the same 5-gigabit link has answered to three names across its career. If you have ever stood in the accessory aisle wondering whether "Gen 1" beats "3.1", this guide is the translation table.
The Renaming, in One Table
Here is the lineage, as defined by the USB Implementers Forum. What launched as USB 3.0 (5Gbps) was renamed USB 3.1 Gen 1, then renamed again USB 3.2 Gen 1. What launched as USB 3.1 (10Gbps) became USB 3.1 Gen 2, then USB 3.2 Gen 2. The 20Gbps tier is USB 3.2 Gen 2x2, the "2x2" meaning two lanes of 10Gbps each. And USB4 sits above all of them, starting at 40Gbps.
So the translation table reads: Gen 1 = 5Gbps = the old USB 3.0. Gen 2 = 10Gbps = the old USB 3.1. Gen 2x2 = 20Gbps. USB4 = 40Gbps and up. When a listing says "USB 3.1", ask which generation: the name has described both 5 and 10 gigabits at different points in its career, which is precisely the confusion the renames created.
Why the Names Matter at Purchase Time
The stakes are concrete. A 10Gbps port moves a 50GB project in under a minute; a 5Gbps port takes about twice that; a USB 2.0 port, still common on budget gear, crawls at 480Mbps and turns the same copy into a coffee break. Buying a fast drive and connecting it through a Gen 1 port is the classic mismatch our support archives see constantly: the drive was never the bottleneck, the name on the hub's port was.
The second trap is direction: ports and cables are rated separately. A Gen 2 hub with a Gen 1 cable runs at Gen 1 speed. Match the cable's certification tier to the port's tier, the same discipline we recommend for HDMI and DisplayPort tiers, and the chain delivers what the box promised.
The Plain-Numbers Buying Rule
Strip the logos and shop by three numbers: the gigabits, the watts, and the certification. A hub that states "10Gbps" per port, publishes its power budget per configuration, and carries certified cables is telling you the truth in units you can now translate. Everything else, the generation names, the colors, the marketing adjectives, is negotiable packaging around those three numbers.
Our product pages follow exactly that discipline: every port on every Mattzon hub and dock states its data rate and its power role, from the 10Gbps tiers on our powered hubs to the 480Mbps ports we honestly label as charger-and-keyboard duty. Built and per-unit tested in our Shenzhen factory, across a line where 89% of products are private mold and the terms stay friendly: no MOQ, samples first, 3 to 25 day lead times.
If you want a spec sheet translated before you buy, message Kitty's team on WhatsApp at +86 186 8146 2886, and paste the listing: we will decode it with you.
