From owner-freebsd-questions@freebsd.org Fri Sep 11 15:45:31 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B8B7A013CD for ; Fri, 11 Sep 2015 15:45:31 +0000 (UTC) (envelope-from freebsd@qeng-ho.org) Received: from bede.qeng-ho.org (bede.qeng-ho.org [217.155.128.241]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "fileserver.home.qeng-ho.org", Issuer "fileserver.home.qeng-ho.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id AB0FA1072 for ; Fri, 11 Sep 2015 15:45:30 +0000 (UTC) (envelope-from freebsd@qeng-ho.org) Received: from arthur.home.qeng-ho.org (arthur.home.qeng-ho.org [172.23.1.2]) by bede.home.qeng-ho.org (8.15.2/8.15.2) with ESMTP id t8BFZSBi012826; Fri, 11 Sep 2015 16:35:28 +0100 (BST) (envelope-from freebsd@qeng-ho.org) Subject: Re: USB physical ports To: Polytropon , Ernie Luzar References: <55F1A507.70402@gmail.com> <20150911142906.3da7c16b.freebsd@edvax.de> Cc: freebsd-questions From: Arthur Chance Message-ID: <55F2F4C0.4050103@qeng-ho.org> Date: Fri, 11 Sep 2015 16:35:28 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20150911142906.3da7c16b.freebsd@edvax.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Sep 2015 15:45:31 -0000 On 11/09/2015 13:29, Polytropon wrote: > On Thu, 10 Sep 2015 11:43:03 -0400, Ernie Luzar wrote: >> I have 6 physical ports on my PC box. The boot time messages seem to say >> that one of those ports is 480Mbps High Speed USB v2.0. >> >> How do I determine which physical USB port is the 480Mbps High Speed port? > > Usually there are two ways: > > First, there is the visual inspection of the plastic bar inside > the ports. They are color coded black, white, or blue, which > refers to USB 1, 2, or 3 respectively. Black and white can be either USB 1 or USB 2 according to Wikipedia and my experience. I've got both black and white USB 2.0 ports on my various bits of kit and apparently some Lenovo laptops use grey for USB 2. Usually USB 3.0 ports are blue, unless they're yellow, red or orange. That can variously mean always on and/or high power/fast charge depending on manufacturer. From what I can glean, blue for USB 3 is a marketing thing, not a specification. Standards, don't you just love them. -- Those who do not learn from computing history are doomed to GOTO 1