{"id":47067,"date":"2019-01-10T17:58:53","date_gmt":"2019-01-10T23:58:53","guid":{"rendered":"https:\/\/eshop.macsales.com\/blog\/?p=47067"},"modified":"2020-09-16T10:46:23","modified_gmt":"2020-09-16T15:46:23","slug":"thunderbolt-3-and-usb-c-a-quick-guide-and-a-look-to-the-future","status":"publish","type":"post","link":"https:\/\/eshop.macsales.com\/blog\/47067-thunderbolt-3-and-usb-c-a-quick-guide-and-a-look-to-the-future\/","title":{"rendered":"Thunderbolt 3 and USB-C: A Quick Guide and A Look To The Future"},"content":{"rendered":"\n<p>Although both data transfer protocols have been around for a few years now on Macs (particularly MacBooks), there&#8217;s still a lot of confusion about <a href=\"https:\/\/eshop.macsales.com\/shop\/Thunderbolt\/\">Thunderbolt 3<\/a> and <a href=\"https:\/\/eshop.macsales.com\/search\/?q=USB%2DC&amp;filter.catidpath=4298&amp;sort.popularity=desc\">USB-C<\/a>. Both of the protocols use the same port, but that doesn&#8217;t mean that Thunderbolt 3 products can connect to USB-C ports. In this post, we&#8217;ll explain the difference between the two protocols and also talk about what may be coming down the road.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Most Important Thing To Know:<\/strong><\/h2>\n\n\n\n<p><em>\u2022 <strong>All Thunderbolt 3 Ports are also USB-C Ports<\/strong><\/em><\/p>\n\n\n\n<p>Thunderbolt 3 and USB-C take advantage of the same reversible port, meaning that you can&#8217;t plug in a USB-C or Thunderbolt 3 cable &#8220;the wrong way&#8221;. However, Thunderbolt 3 ports have extra hardware associated with them to allow high-bandwidth data transfers between devices, while USB-C ports do not have the necessary hardware.<\/p>\n\n\n\n<p>Intel developed Thunderbolt 3 to provide speedy data transfer between devices, building upon PCI Express (PCIe) and DisplayPort.&nbsp;Think of PCIe as being like a 4-lane highway while USB-C is a one-lane paved road. Shipping data down 10 lanes at the same time is much more efficient than lining up data packets one after another to trudge down that one-lane road. Thunderbolt 3 has a lot more speed, but those Thunderbolt 3 devices have to be plugged into a Thunderbolt 3 port.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM.png\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"70\" src=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM.png\" alt=\"(Two Thunderbolt 3 ports on the side of a late 2018 MacBook Air)\" class=\"wp-image-47068\" srcset=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM.png 640w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM-284x31.png 284w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM-190x21.png 190w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM-284x31@2x.png 568w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-2.47.22-PM-190x21@2x.png 380w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><figcaption><strong>(Two Thunderbolt 3 ports on the side of a late 2018 MacBook Air.)<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n<p>Any Thunderbolt 3 port can have a Thunderbolt 3 device plugged into it and&nbsp;operate up to the maximum transfer rate of 4o Gigabits per second (Gbps) or 5 Gigabytes per second (GB\/s). A Thunderbolt 3 port&nbsp;can also connect to&nbsp;any USB-C device because Thunderbolt 3 supports&nbsp;USB-C. Have a USB-C hard disk or solid-state drive? Plug it into your Thunderbolt 3 port on your MacBook Pro and it will work, although only at USB-C speeds. That same drive can also be used with the USB-C port on a 12-inch MacBook.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Second Most Important Thing To Know: <\/strong><\/h2>\n\n\n\n<p><em>\u2022 <strong>Not All USB-C Ports are also Thunderbolt 3 Ports<\/strong><\/em><\/p>\n\n\n\n<p>Plug a Thunderbolt 3 peripheral into a USB-C port, and you&#8217;ll probably be disappointed when nothing happens. Why is this? There is no PCIe controller in the USB-C port, so the Thunderbolt 3 device can&#8217;t communicate with the computer. For example, if someone tries plugging a Thunderbolt 3 display into the USB-C port on a 2018 Apple iPad Pro, they won&#8217;t see a thing.<\/p>\n\n\n\n<p>In early 2018, Intel came out with a new family of Thunderbolt 3 controllers by the name of&nbsp;Titan Ridge. What&#8217;s interesting about Titan Ridge&nbsp;controllers is that they can maintain the full 40 Gbps throughput of Thunderbolt 3 when connected to a Thunderbolt 3 port, and also have a USB-C fallback mode.<\/p>\n\n\n\n<p>The fallback mode enables accessories with a Titan Ridge Thunderbolt 3 controller to &#8220;fall back&#8221; to USB-C speeds and capabilities when plugged into a USB-C port or a USB-C hub like the <a href=\"https:\/\/eshop.macsales.com\/item\/OWC\/TCDK10PMDSG\/\">OWC USB-C Dock<\/a>.<\/p>\n\n\n\n<p>There&#8217;s an issue with this; almost no&nbsp;manufacturers advertise the type of Thunderbolt 3 controller being used in their devices so you don&#8217;t know if a Titan Ridge controller is inside the peripheral. What you&#8217;ll probably see instead in marketing materials is the phrase &#8220;connects to both Thunderbolt 3 and USB-C&#8221;.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"397\" src=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM.jpg\" alt=\"(Multiple Thunderbolt 3 peripherals connected to an OWC Thunderbolt 3 Dock)\" class=\"wp-image-47070\" srcset=\"https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM.jpg 800w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-242x120-1.jpg 242w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-284x141-1.jpg 284w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-190x94-1.jpg 190w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-242x120-1@2x.jpg 484w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-284x141-1@2x.jpg 568w, https:\/\/eshop.macsales.com\/blog\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-09-at-3.02.10-PM-190x94-1@2x.jpg 380w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption><strong>(Multiple Thunderbolt 3 peripherals connected to an OWC Thunderbolt 3 Dock.)<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Third Most Important Thing To Know: <\/strong><\/h2>\n\n\n\n<p><em>\u2022 <strong>Thunderbolt 3 Can Daisy-Chain Peripherals, USB-C Cannot<\/strong><\/em><\/p>\n\n\n\n<p>If you have multiple Thunderbolt 3 peripherals &#8212; perhaps an external GPU chassis like the <a rel=\"noopener noreferrer\" href=\"https:\/\/eshop.macsales.com\/item\/OWC\/HELIOSFX650\/\" target=\"_blank\">OWC Mercury Helios FX 650<\/a>, a couple of <a href=\"https:\/\/eshop.macsales.com\/shop\/thunderbay-6\/thunderbolt-3-raid\">OWC ThunderBay 6 RAID<\/a>&nbsp;enclosures, a pair of external 5K displays, and a fast portable drive like the <a href=\"https:\/\/eshop.macsales.com\/item\/OWC\/TB3ENVP20\">OWC Envoy Pro EX<\/a>&nbsp;for taking work on the road &#8212; you can daisy-chain them, basically connecting all of those peripherals to a single Thunderbolt 3 port (the Helios FX and Envoy Pro EX will be at the end of the chain, as they have one port). You can&#8217;t daisy-chain USB-C peripherals; each requires its own port to connect to. For example, your chain of devices could look like this: OWC Thunderbolt 3 Dock &gt; ThunderBay 6 &gt; Helios FX or Envoy Pro EX TB3.<\/p>\n\n\n\n<p><strong>Note:<\/strong> All the devices in a Thunderbolt 3 chain need to be powered devices and have two Thunderbolt 3 ports, except the end-chain device, which can be either bus-powered (like the Envoy) or self-powered (like the Helios).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Is There A&nbsp;Thunderbolt 4 In&nbsp;Our Future?<\/strong><\/h2>\n\n\n\n<p>At this point, Intel, Apple and other manufacturers haven&#8217;t said anything about creating a new Thunderbolt hardware interface standard to replace Thunderbolt 3. However, the need for speed could be driving some changes in the future&#8230;<\/p>\n\n\n\n<p class=\"footnote\"><strong>RELATED:<\/strong> <a href=\"https:\/\/eshop.macsales.com\/blog\/63715-intel-introduces-thunderbolt-4-what-is-it-and-does-it-matter\/\">Intel Introduces Thunderbolt 4: What Is It and Does It Matter?<\/a><\/p>\n\n\n\n<p>Although many of us still haven&#8217;t upgraded to 4K UHDTV, manufacturers are beginning to demonstrate 8K high dynamic range (HDR) displays. A single 8K display has a resolution of 7680 x 4320 pixels (33.2 megapixels) and to drive that display at a refresh rate of 60 Hz would require a bandwidth of at least 62 Gbit\/s (that&#8217;s for uncompressed high color depth HDR10 video). The next iteration of Thunderbolt will most likely double the speed from Thunderbolt 3&#8217;s 40 Gbit\/s throughput to 80 Gbit\/s.<\/p>\n\n\n\n<p>Stay tuned to the <a href=\"https:\/\/eshop.macsales.com\/blog\" target=\"_blank\" rel=\"noopener noreferrer\">Rocket Yard<\/a> throughout 2019 to remain up to date on all things Thunderbolt.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Although both data transfer protocols have been around for a few years now on Macs (particularly MacBooks), there&#8217;s still a lot of confusion about Thunderbolt 3 and USB-C. Both of the protocols use the same port, but that doesn&#8217;t mean that Thunderbolt 3 products can connect to USB-C ports. In this post, we&#8217;ll explain the [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":65604,"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":[7063],"class_list":["post-47067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-talk"],"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>USB-C vs. Thunderbolt 3: A Quick Guide &amp; Look to the Future<\/title>\n<meta name=\"description\" content=\"USB C vs. Thunderbolt 3: Both of these protocols use the same port, but that doesn&#039;t mean that Thunderbolt 3 products can connect to USB-C ports.\" \/>\n<meta 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