{"id":1662,"date":"2021-02-10T14:19:01","date_gmt":"2021-02-10T06:19:01","guid":{"rendered":"https:\/\/www.optav-tech.com\/?p=1662"},"modified":"2026-06-10T17:01:28","modified_gmt":"2026-06-10T09:01:28","slug":"whats-the-difference-in-usb-3-1-gen-1-gen-2-and-usb-3-2","status":"publish","type":"post","link":"http:\/\/www.optav-tech.com\/en\/whats-the-difference-in-usb-3-1-gen-1-gen-2-and-usb-3-2\/","title":{"rendered":"What\u2019s the Difference in USB 3.1 Gen 1, Gen 2 and USB 3.2?"},"content":{"rendered":"
The USB standards and their specifications can be a little challenging to understand especially after their many updates. We\u2019ll address questions like what\u2019s the difference between USB 3.1 Gen 1 and Gen 2 and talk about why Gen 2 is better than Gen 1 along with other helpful information that\u2019ll allow you to understand everything to know about USB standards.<\/p>\n
USB 3.0 was released over ten years ago in 2008 and it was the third major revision to the USB standard. It was a big improvement from USB 2.0 which first arrived in 2000 with transfer speeds of only 480 Mbit\/s. Since then, we\u2019ve moved on from USB 3.0 which is now known as USB 3.1 Gen 1. Therefore, USB 3.0 is the same thing as USB 3.1 Gen 1.<\/p>\n
USB-IF, the organization that is responsible for maintaining USB (Universal Serial Bus) specifications and compliance, did this to make it easier for developers and manufacturers to have the same relevant information to ensure products are properly developed to be backwards compatible. They are responsible for the naming conventions found on USB cables and devices.<\/p>\n
USB 3.1 Gen 1 vs USB 3.1 Gen 2<\/strong><\/h5>\n
The difference between USB 3.1 Gen 1 and USB 3.1 Gen 2 is only in terms of speed. USB 3.1 Gen 1 supports speeds of up to 5Gbit\/s while USB 3.1 Gen 2 supports speeds of up to 10Gbit\/s. The USB-IF intended to use a set of different names to call the USB 3.1 Gen 1 and USB 3.1 Gen 2 that would\u2019ve made it better strictly for marketing purposes. They wanted to name USB 3.1 Gen 1 and Gen 2 “SuperSpeed USB” and “SuperSpeed USB+” respectively, but the industry never caught on. Often, OEMs will add the speeds of 5Gbps or 10Gbps to their spec tables in order to differentiate between the two USB standards. The rest of the industry just refers to them as “USB 3.1 Gen 1” or “USB 3.1 Gen 2.”<\/p>\n
Arrival of USB 3.2<\/strong><\/h5>\n
Since then, USB technology has advanced even further with USB 3.2 arriving in 2017. There are four different variations of USB 3.2 with their own special names and meanings. Four variations of USB 3.2 are:<\/p>\n
\n\n
\n
<\/td>\n
USB 3.2 Gen 1×1<\/td>\n
USB 3.2 Gen 1×2<\/td>\n
USB 3.2 Gen 2×1<\/td>\n
USB 3.2 Gen 2×2<\/td>\n<\/tr>\n
\n
Transfer Speed<\/td>\n
5Gbps<\/td>\n
10Gbps<\/td>\n
10Gbps<\/td>\n
20Gbps<\/td>\n<\/tr>\n
\n
Previously Known As<\/td>\n
USB 3.1 Gen 1 and USB 3.0<\/td>\n
—<\/td>\n
USB 3.1 Gen 2<\/td>\n
—<\/td>\n<\/tr>\n
\n
Interface Options<\/td>\n
USB-A, USB-C, microUSB<\/td>\n
USB-C Only<\/td>\n
USB-A, USB-C, microUSB<\/td>\n
USB-C Only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
With the arrival of USB 3.2, the industry dominant USB-A connection was beginning to phase out in favor of USB-C. Since USB-C supports higher data transfer speeds and could charge other peripheral devices faster, it has naturally become the main USB connector in utilizing USB 3.2 Gen 2.\u00a0\u00a0What does x2 mean?\u00a0 If a device has this designation it uses 2 of the available data lanes.<\/p>\n<\/figure>\n
Thunderbolt\u2122 is the brand name of the hardware interface developed by Intel\u00ae in collaboration with Apple\u00ae and it connects peripheral devices to a computer. Thunderbolt 1 and 2 use the same connector as Mini DisplayPort (MDP) whereas Thunderbolt 3 uses the USB-C connecter.<\/p>\n
USB4 is Next<\/strong><\/h5>\n
The next advancement in USB technology will be USB4. It\u2019ll offer 40Gbit\/s data transfer speeds, Thunderbolt 3 compatibility and will only use the USB-C connector. USB4 aims to increase bandwidth and is focused on converging the USB-C connector ecosystem and minimize end-user confusion.<\/p>\n
Several key designs of the USB4 include:<\/p>\n
\n
Display, data and load\/store functionality with the use of a single USB-C connector<\/li>\n
Universally compatible with existing USB and Thunderbolt products<\/li>\n
Define port capabilities for predictable and consistent user experience<\/li>\n
Increase host flexibility to configure bandwidth, power management, and other performance-related parameters for system needs<\/li>\n<\/ul>\n
USB came a long way from when it was first introduced and will continue to advance in the future. When it comes to USB 3.1 Gen 1 and Gen 2, the only difference is speed and they’re backwards\u00a0compatible with USB 3.0 and USB 2.0. In the future, with newer generations of USB standards and the arrival of USB-C, there will be even better improvements.<\/p>\n","protected":false},"excerpt":{"rendered":"
The USB standards and their specifications can be a little challenging to understand especially after their many updates. We\u2019ll address questions like what\u2019s the difference between USB 3.1 Gen 1 and Gen 2 and talk about why Gen 2 is better than Gen 1 along with other helpful information that\u2019ll allow you to understand everything […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[148],"tags":[],"class_list":["post-1662","post","type-post","status-publish","format-standard","hentry","category-article"],"acf":[],"yoast_head":"\n
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