--- title: Teardown: A Generic 7-Port USB 3.0 Hub That Wasn’t description: A teardown of a cheap AliExpress USB 3.0 hub reveals it is largely a USB 2.0 device in disguise. Only one of seven ports is wired for USB 3.0; the remaining... canonical: https://daily.dev/posts/teardown-a-generic-7-port-usb-3-0-hub-that-wasn-t-3o9fdbiwb twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Teardown: A Generic 7-Port USB 3.0 Hub That Wasn’t | daily.dev og:description: A teardown of a cheap AliExpress USB 3.0 hub reveals it is largely a USB 2.0 device in disguise. Only one of seven ports is wired for USB 3.0; the remaining... og:url: https://daily.dev/posts/teardown-a-generic-7-port-usb-3-0-hub-that-wasn-t-3o9fdbiwb og:image: https://api.daily.dev/og/posts/3o9FdbiWb.png og:image:alt: Teardown: A Generic 7-Port USB 3.0 Hub That Wasn’t og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Teardown: A Generic 7-Port USB 3.0 Hub That Wasn’t **[Hacker News](https://daily.dev/sources/hn)** · 12 min read · 0 upvotes · 0 comments ## Summary A teardown of a cheap AliExpress USB 3.0 hub reveals it is largely a USB 2.0 device in disguise. Only one of seven ports is wired for USB 3.0; the remaining six use four-pin USB 2.0 connectors. The hub uses two HS8836A USB 2.0 chips (single-transaction-translator type), meaning all ports share USB 1.1 bandwidth. Build quality is poor: minimal soldering on port shells, no bypass capacitors, and a dangerous power jack wiring flaw that allows external power supplies to backfeed the host computer. The device was detected as two stacked USB 2.0 four-port hubs, confirming the deception. The author warns that fake reviews and misleading listings make it hard to identify such fraudulent products. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [A USB Port By Any Other Color…](https://daily.dev/posts/a-usb-port-by-any-other-color--ptaqnhy7s) · Hackaday · 4 upvotes · 0 comments - [Name that Ware, March 2026 « bunnie's blog](https://daily.dev/posts/name-that-ware-march-2026-bunnie-s-blog-pu6cdsbjv) · bunnie's blog · 0 upvotes · 0 comments - [Your motherboard has a USB 2.0 header you're probably wasting, and it's more useful than you think](https://daily.dev/posts/your-motherboard-has-a-usb-2-0-header-you-re-probably-wasting-and-it-s-more-useful-than-you-think-5dlm3xtq1) · XDA Developers · 0 upvotes · 0 comments - [Dissecting A Lethal Universal Travel Adapter](https://daily.dev/posts/dissecting-a-lethal-universal-travel-adapter-7nq3bxmdd) · Hackaday · 0 upvotes · 0 comments - [The most useful port on your motherboard is the one you've never plugged anything into](https://daily.dev/posts/the-most-useful-port-on-your-motherboard-is-the-one-you-ve-never-plugged-anything-into-nyeionabm) · XDA Developers · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/teardown-a-generic-7-port-usb-3-0-hub-that-wasn-t-3o9fdbiwb) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Teardown: A Generic 7-Port USB 3.0 Hub That Wasn’t","url":"https://daily.dev/posts/teardown-a-generic-7-port-usb-3-0-hub-that-wasn-t-3o9fdbiwb","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/teardown-a-generic-7-port-usb-3-0-hub-that-wasn-t-3o9fdbiwb"},"datePublished":"2026-07-16T08:59:03.972Z","dateModified":"2026-07-16T08:59:27.958Z","description":"A teardown of a cheap AliExpress USB 3.0 hub reveals it is largely a USB 2.0 device in disguise. 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