From owner-freebsd-questions@freebsd.org Fri Sep 11 12:32:29 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 C7215A01065 for ; Fri, 11 Sep 2015 12:32:29 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mx02.qsc.de (mx02.qsc.de [213.148.130.14]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8BAD418BF for ; Fri, 11 Sep 2015 12:32:29 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de (port-92-195-125-111.dynamic.qsc.de [92.195.125.111]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx02.qsc.de (Postfix) with ESMTPS id 62BDC27876; Fri, 11 Sep 2015 14:32:27 +0200 (CEST) Received: from r56.edvax.de (localhost [127.0.0.1]) by r56.edvax.de (8.14.5/8.14.5) with SMTP id t8BCWQJP002469; Fri, 11 Sep 2015 14:32:26 +0200 (CEST) (envelope-from freebsd@edvax.de) Date: Fri, 11 Sep 2015 14:32:26 +0200 From: Polytropon To: Ernie Luzar Cc: Dave , freebsd-questions@freebsd.org Subject: Re: USB physical ports Message-Id: <20150911143226.2a0137df.freebsd@edvax.de> In-Reply-To: <55F216CB.6040606@gmail.com> References: <55F1A507.70402@gmail.com> <2091716.bhpPQfPjgk@amd.asgard.uk> <55F216CB.6040606@gmail.com> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII 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 12:32:29 -0000 On Thu, 10 Sep 2015 19:48:27 -0400, Ernie Luzar wrote: > Are you saying that no mater which of the 6 USB physical ports I plug > into with a 2.0 standard mem drive will transfer at 480Mbps? Yes, the speed is determined by the hub ("the controller") and will be usable on all ports corresponding to that hub. > How can I confirm 480Mbps transfer rate. Use dd to transfer a file, or use the Midnight Commander which will show you the average transfer speed. Make sure you use a big file so you can actually _see_ something. ;-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...