{"id":37190,"date":"2016-07-22T12:00:00","date_gmt":"2016-07-22T17:00:00","guid":{"rendered":"https:\/\/eshop.macsales.com\/blog\/?p=37190"},"modified":"2016-08-10T16:48:59","modified_gmt":"2016-08-10T21:48:59","slug":"thunderbolt-3-a-brief-history-of-thunderbolt","status":"publish","type":"post","link":"https:\/\/eshop.macsales.com\/blog\/37190-thunderbolt-3-a-brief-history-of-thunderbolt\/","title":{"rendered":"Tech 101: A Brief History of Thunderbolt Technology"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-37199\" src=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_.png\" alt=\"Thunderbolt is a registered trademark of Intel.\" width=\"640\" height=\"163\" srcset=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_.png 640w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_-284x72.png 284w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_-190x48.png 190w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_-284x72@2x.png 568w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt_logo.svg_-190x48@2x.png 380w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>[<strong>Editor&#8217;s Note:<\/strong> For part two in our Thunderbolt 101 series, see\u00a0<a title=\"Tech 101: What Thunderbolt 3 Speeds and Capabilities Mean for You\" href=\"https:\/\/eshop.macsales.com\/blog\/37294-tech-101-what-thunderbolt-3-speeds-and-capabilities-mean-for-you\" rel=\"bookmark\">What Thunderbolt 3 Speeds and Capabilities Mean for You<\/a>]<\/p>\n<p>Thunderbolt 3 is the most recent iteration of <a href=\"https:\/\/eshop.macsales.com\/shop\/Thunderbolt\/\">Thunderbolt<\/a>, a hardware interface designed to connect multiple external peripherals to a computer at high data rates. This is the first in a series of educational articles to acquaint readers with the ins and outs Thunderbolt 3 (<a href=\"https:\/\/eshop.macsales.com\/blog\/36322-owc-ceo-talks-current-future-solutions-with-digital-cinema-society\">click here to see OWC CEO\u2019s preview of Thunderbolt 3\u00a0gear at NAB 2016<\/a>) and its promise for ultra-fast connectivity to peripherals, and today\u00a0the Rocket Yard will\u00a0provide a bit of history about Thunderbolt and the progress that has been made since it first appeared on the computing scene in 2011.<\/p>\n<p><strong>Light Peak<\/strong><br \/>\nYou may remember that the first Thunderbolt product came from Apple. In 2011, the MacBook Pro was updated with Thunderbolt ports. Before this\u00a0time, the technology was more widely known as \u201cLight Peak\u201d, invented by Intel\u2019s Silicon Photonics lab and expected to work over optical fibers. But Apple and Intel realized that the desired super-fast connectivity could be done at much less cost with traditional copper cables, and Apple quickly registered the name Thunderbolt for the technology. Since Intel had the primary intellectual property rights for the technology, Apple transferred the trademark to the chipmaker.<\/p>\n<p><strong>USB 3 vs. Thunderbolt<\/strong><br \/>\nSo, what exactly was the big deal about the original Thunderbolt? Well, up until that time there were a variety of different interfaces available for Macs and PCs, including the recently-introduced USB 3.0. Like USB 3.0, Thunderbolt was designed for faster connections to peripherals. But even the original Thunderbolt standard as implemented in the 2011 MacBook Pro had some advantages over USB 3.0. First, let\u2019s talk about USB 3.0, what it could do, and why it became popular much faster than Thunderbolt.<\/p>\n<p><strong>Related:\u00a0<\/strong><a href=\"https:\/\/eshop.macsales.com\/blog\/34406-tech-101-the-history-of-usb-its-not-quite-as-simple-as-1-2-3\">The History of USB \u2026 It\u2019s Not Quite As Simple As 1, 2, 3<\/a><\/p>\n<p>USB 3.0 introduced the SuperSpeed (SS) data transfer to the computing world, offering a transfer speed of up to 5 gigabits\/second (Gbit\/s). That, and the fact that USB 3.0 uses full-duplex transfers (transferring data in both directions simultaneously), gave USB 3.0 about a 20-fold theoretical bandwidth advantage over USB 2.0.<\/p>\n<p>For those computers that shipped with USB 3.0 ports, there was one major advantage over Thunderbolt devices \u2014 the USB 3.0 ports were backward-compatible with USB 2.0 devices, meaning that new computers could still work with older USB 2.0 peripherals like printers and hard drives while owners waited for USB 3.0 peripherals to appear on the market.<\/p>\n<p>The USB 3.1 specification was announced in 2013, bumping the top USB transfer speeds up to 10 Gbit\/s (called USB 3.1 Gen 2)\u2014 exactly the same transfer speeds as the original Thunderbolt devices.\u00a0And with the USB 3.1 spec, separately came a new connector type called USB-C. This is the connector that\u2019s used for both power and data on the 12-inch Retina MacBook.\u00a0(<strong>Note:<\/strong>\u00a0For more information on the difference between USB 3.0 and USB 3.1,\u00a0<a href=\"https:\/\/eshop.macsales.com\/blog\/34406-tech-101-the-history-of-usb-its-not-quite-as-simple-as-1-2-3\">please read this article<\/a>.)<strong>\u00a0<\/strong><\/p>\n<p><strong>Thunderbolt speeds<\/strong><br \/>\nSo with USB data transfer speeds roughly in the same ballpark as Thunderbolt around 2013, what are\u00a0the advantages of Thunderbolt over USB?<\/p>\n<p>First, up to six devices could be daisy-chained from one Thunderbolt port. The initial ports are\u00a0virtually identical to Apple\u2019s Mini DisplayPort and, in fact, use an identical connector. Since Thunderbolt can also transfer up to 10W of power, many peripherals can be bus-powered \u2014 that is, they don\u2019t need to be plugged into a separate outlet. The most USB can handle is about 4.5W of power.<\/p>\n<p>One of the biggest advantages is that Thunderbolt\u2019s underlying technology made the idea of a Thunderbolt dock possible \u2014 a box that could use one Mac Thunderbolt port and provide the user with a variety of ports including HDMI or DVI video, FireWire, Ethernet, USB 3.0 and audio input\/output. OWC was among the pioneers of Thunderbolt docks, with the\u00a0<a href=\"https:\/\/eshop.macsales.com\/shop\/Thunderbolt\/Dock\/OWC\/Thunderbolt2-Dock\/\">OWC Thunderbolt 2 Dock<\/a>.<\/p>\n<figure id=\"attachment_37204\" aria-describedby=\"caption-attachment-37204\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-37204 size-full\" src=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328.jpg\" alt=\"ThunderboltDock\" width=\"640\" height=\"158\" srcset=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328.jpg 640w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328-284x70.jpg 284w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328-190x47.jpg 190w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328-284x70@2x.jpg 568w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/ThunderboltDock-e1470864439328-190x47@2x.jpg 380w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption id=\"caption-attachment-37204\" class=\"wp-caption-text\"><strong>OWC Thunderbolt 2 Dock<\/strong><\/figcaption><\/figure>\n<p>While USB 3.1 Gen 2 put USB into the same data transfer speed range as Thunderbolt, Intel and other companies weren\u2019t sitting still. Thunderbolt 2 was first introduced in Apple products in 2013\u2019s MacBook Pro, aggregating two 10 Gbps channels and doubling transfer speeds to 20 Gbps. That means that Thunderbolt 2 can easily drive a 4K video monitor or a pair of QHD (2560 x 1440 pixel) monitors.<\/p>\n<p>Thunderbolt 2 uses the same Mini DisplayPort connector as the original Thunderbolt, and is currently in use on every Mac manufactured with the exception of the 12-inch Retina MacBook. Of course, Intel and others\u00a0continue to innovate\u2026<strong>\u00a0<\/strong><\/p>\n<p><strong>Thunderbolt 3<\/strong><br \/>\nThunderbolt 3 is likely to be announced on any Mac products that are released in 2016 and into the future. Developed by Intel and released in 2015, Thunderbolt 3 does away with the Mini DisplayPort connector, instead adopting the USB-C connector, which unfortunately causes incompatibility with Thunderbolt 2.<\/p>\n<p>Intel\u2019s Thunderbolt 3 controller provides transfer speeds of up to 40 Gbps (with the correct cables) and allowing a single computer to drive a pair of 4K video monitors at 60 frames per second.<\/p>\n<p>As I mentioned, Apple hasn\u2019t announced any Thunderbolt 3 products at this point, but there\u2019s still enough time for the company to introduce new or upgraded products with the interface. What adds to the possibility of Thunderbolt 3 Macs is that Intel\u2019s Skylake architecture chipsets provide support for the interface. Oddly enough, there are only two Apple devices that are currently using the Skylake chipset, the iMac which Apple shipped with Thunderbolt 2 and one which doesn\u2019t currently support Thunderbolt \u2014 the 12-inch Retina MacBook.<\/p>\n<p><strong>Thunderbolt\u2019s slow rise<\/strong><br \/>\nFor quite a while, the only major computer manufacturer that used Thunderbolt or Thunderbolt 2 was Apple. As a result, there wasn\u2019t the same\u00a0rush to market with Thunderbolt peripherals as there was for USB 3.0 products. Thunderbolt also faced some challenges in the computer marketplace.<\/p>\n<figure id=\"attachment_37201\" aria-describedby=\"caption-attachment-37201\" style=\"width: 320px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-37201\" src=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt2Cable.jpg\" alt=\"OWC Thunderbolt Cable\" width=\"320\" height=\"132\" srcset=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt2Cable.jpg 320w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt2Cable-284x117.png 284w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2016\/07\/Thunderbolt2Cable-190x78.png 190w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><figcaption id=\"caption-attachment-37201\" class=\"wp-caption-text\"><strong>OWC Thunderbolt Cable<\/strong><\/figcaption><\/figure>\n<p>Initially there were debates about optical (fiber optic) Thunderbolt vs. copper Thunderbolt that resulted in delays in the manufacture of both computers and peripherals. Once those disagreements were ironed out and copper became the transfer medium of choice.<\/p>\n<p>Apple being one of the only computer makers standing behind Thunderbolt in the early years, along with the relative high cost for Thunderbolt peripherals and accessories was a hindrance in the beginning.<\/p>\n<p>The low cost of USB peripherals coupled with faster and faster versions of USB didn\u2019t help speed up the adoption of Thunderbolt. But Thunderbolt 3\u2019s use of the USB\u00a0Type-C connector and the fact that one computer port will now be able to support 40 Gbit\/s data transfer and fast charging, plus support DisplayPort, PCIe, and the fastest USB specification, is making it increasingly attractive to PC manufacturers other than Apple.<\/p>\n<p><strong>Laptops: The real future for Thunderbolt 3<\/strong><br \/>\nWhere Thunderbolt 3 can\u00a0really shine is in laptop computers. The USB-C connector allows for very thin designs, and the speed could\u00a0make it possible for a laptop to drive\u00a0an external graphics accelerator for really fast gaming or video work\u2026if such a graphics accelerator peripheral is released by a hardware vendor.<\/p>\n<p>While Apple hasn\u2019t officially announced Thunderbolt 3 support for upcoming Macs, it\u2019s very likely that the company that supported the interface standard in its infancy will\u00a0embrace it as a mature technology. Other PC manufacturers, including HP, Dell, MSI, Asus, Razer, and Acer, are all featuring Thunderbolt 3 in\u00a0their 2016 product lines.<\/p>\n<p>For Part 2 in this series, please visit <a href=\"https:\/\/eshop.macsales.com\/blog\/37294-tech-101-what-thunderbolt-3-speeds-and-capabilities-mean-for-you\">eshop.macsales.com\/blog\/37294-tech-101-what-thunderbolt-3-speeds-and-capabilities-mean-for-you<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[Editor&#8217;s Note: For part two in our Thunderbolt 101 series, see\u00a0What Thunderbolt 3 Speeds and Capabilities Mean for You] Thunderbolt 3 is the most recent iteration of Thunderbolt, a hardware interface designed to connect multiple external peripherals to a computer at high data rates. This is the first in a series of educational articles to [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":37206,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":"","footnotes":""},"categories":[7,4],"class_list":["post-37190","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-random-thoughts-and-topics","category-tech-tips"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.2 (Yoast SEO v20.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tech 101: A Brief History of Thunderbolt Technology<\/title>\n<meta name=\"description\" content=\"Thunderbolt 3 is the most recent iteration of Thunderbolt, a hardware interface designed to connect multiple external peripherals 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