{"id":35618,"date":"2022-04-19T15:44:01","date_gmt":"2022-04-19T19:44:01","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=35618"},"modified":"2022-04-19T15:44:01","modified_gmt":"2022-04-19T19:44:01","slug":"m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2022\/04\/19\/m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2\/","title":{"rendered":"M1 Thunderbolt Ports Don&rsquo;t Fully Support USB 3.1 Gen 2"},"content":{"rendered":"<p><a href=\"https:\/\/eclecticlight.co\/2022\/04\/18\/m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2\/\">Howard Oakley<\/a> (<a href=\"https:\/\/news.ycombinator.com\/item?id=31068479\">Hacker News<\/a>):<\/p>\n<blockquote cite=\"https:\/\/eclecticlight.co\/2022\/04\/18\/m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2\/\">\n<p>Apple claims that all its new models using M1 series chips come with Thunderbolt ports which support &ldquo;USB 3.1 Gen 2 (up to 10Gb\/s)&rdquo;. However, many users have reported performance which doesn&rsquo;t reach 10 Gb\/s for directly connected external disks.<\/p>\n<p>[&#8230;]<\/p>\n<p>Currently, and as far as I&rsquo;m aware since their release in November 2020, no Thunderbolt port in any M1 model appears to fully support 10 Gb\/s SuperSpeed+ in USB 3.1 Gen 2, at least for SSDs.<\/p>\n<p>The only ports in M1 Macs which currently appear to support USB 3.1 Gen 2 fully are those on the front of the Mac Studio Max.<\/p>\n<p>10 Gb\/s SuperSpeed+ in USB 3.2 devices does appear to be supported by the Thunderbolt ports of M1 Macs.<\/p>\n<\/blockquote>\n\n<p>It sounds like there are multiple bugs here, especially the 20 MB\/s read performance when using the ports on the front of the Mac Studio.<\/p>\n\n<blockquote cite=\"https:\/\/eclecticlight.co\/2022\/04\/18\/m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2\/\">\n<p>Users with USB 3.1 Gen 2 devices should connect them to a Thunderbolt 3 Dock, or the USB ports on a Studio Display, where they should perform better.<\/p>\n<\/blockquote>\n\n<p>I have had <a href=\"https:\/\/mjtsai.com\/blog\/2022\/04\/08\/upgrading-to-a-14-inch-macbook-pro-with-a-studio-display#upgrading-to-a-14-inch-macbook-pro-with-a-studio-display-update-2022-04-13\">trouble<\/a> using the Studio Display as a hub, as there seemingly wasn&rsquo;t enough bandwidth for my keyboard while the Mac was cloning to spinning disks connected to the display.<\/p>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2022\/03\/08\/mac-studio\/\">Mac Studio<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2022\/03\/08\/studio-display\/\">Studio Display<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2021\/12\/20\/usbefuddled\/\">USBefuddled<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2019\/02\/27\/confusing-usb-3-2-branding\/\">Confusing USB 3.2 Branding<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Howard Oakley (Hacker News): Apple claims that all its new models using M1 series chips come with Thunderbolt ports which support &ldquo;USB 3.1 Gen 2 (up to 10Gb\/s)&rdquo;. However, many users have reported performance which doesn&rsquo;t reach 10 Gb\/s for directly connected external disks. [&#8230;] Currently, and as far as I&rsquo;m aware since their release [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2022-04-19T19:44:03Z","apple_news_api_id":"c5e37748-388a-4f07-95b4-4a4656025c47","apple_news_api_modified_at":"2022-04-19T19:44:03Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/AxeN3SDiKTweVtEpGVgJcRw","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[2014,2134,2133,2180,452,30,2181,2077,174,2182,201,175,1154],"class_list":["post-35618","post","type-post","status-publish","format-standard","hentry","category-technology","tag-apple-m1","tag-apple-m1-max","tag-apple-m1-pro","tag-apple-m1-ultra","tag-hardware","tag-mac","tag-mac-studio","tag-macos-12","tag-storage","tag-studio-display","tag-thunderbolt","tag-usb","tag-usb-c"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/35618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=35618"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/35618\/revisions"}],"predecessor-version":[{"id":35619,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/35618\/revisions\/35619"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=35618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=35618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=35618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}