{"id":12741,"date":"2015-11-05T14:50:40","date_gmt":"2015-11-05T19:50:40","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=12741"},"modified":"2016-03-30T13:48:09","modified_gmt":"2016-03-30T17:48:09","slug":"google-engineer-reviews-usb-c-cables-that-dont-work","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2015\/11\/05\/google-engineer-reviews-usb-c-cables-that-dont-work\/","title":{"rendered":"Google Engineer Reviews USB-C Cables That Don’t Work"},"content":{"rendered":"

Benson Leung<\/a> (via Hacker News<\/a>, Slashdot<\/a>):<\/p>\r\n

\r\n

I bought the CableCreation Micro-B receptacle to Type-C plug for testing with Pixel and Nexus devices. I found that this adapter does not correctly charge the Chromebook Pixel and other Type-C devices. My analysis shows that this cable, although will charge and provide data through to the devices, does not correctly follow the USB Type C specification for power delivery identification. The CableCreation adapter advertises itself as 3A capable, but that is not appropriate because this is a legacy host port adapter.<\/p>\r\n

[…]<\/p>\r\n

In other words, since you are creating a USB Type-C plug to a USB 2.0 Type-B receptacle assembly, you must use a resistor of value 56kΩ. According to our testing, your cable uses a 10kΩ pull-up, which is not legal when the other end of the cable or adapter is a legacy Type-A or Type-B connector or receptacle.<\/p>\r\n

By using this cable, your phone, tablet, or laptop computer may attempt to draw 3A, which may be more than the micro-b to A cable you attach to this adapter may be able to handle. This may cause damage to whatever cable, hub, pc, or charger you plug into this.<\/p>\r\n<\/blockquote>\r\n

Amazon reviews have their problems<\/a>, but for many types of products they’re the best available source of information.<\/p>\r\n\r\n

Update (2016-03-30): Katie Collins<\/a> (Hacker News<\/a>):<\/p>\r\n

The online retailing giant on Wednesday tightened regulations for selling USB Type-C cables<\/a>. It added faulty USB-C cables to a list of banned items that also includes pirated DVDs and portable lasers. Those selling them risk Amazon shutting down their account<\/a> and destroying any of their products stocked in Amazon fulfillment centers.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"

Benson Leung (via Hacker News, Slashdot): I bought the CableCreation Micro-B receptacle to Type-C plug for testing with Pixel and Nexus devices. I found that this adapter does not correctly charge the Chromebook Pixel and other Type-C devices. My analysis shows that this cable, although will charge and provide data through to the devices, does […]<\/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":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","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":[19,90,1309,452,175,1154],"class_list":["post-12741","post","type-post","status-publish","format-standard","hentry","category-technology","tag-amazon","tag-cable","tag-google-chromebook","tag-hardware","tag-usb","tag-usb-c"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/12741","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=12741"}],"version-history":[{"count":4,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/12741\/revisions"}],"predecessor-version":[{"id":14010,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/12741\/revisions\/14010"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=12741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=12741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=12741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}