With over a decade of existence, it's time for USB 2.0 to step back and make way for its faster and more powerful successor, USB 3.0. Alongside this, USB 3.0 is compatible with USB port lock software for enhanced data security. What exactly are the advantages of this 3.0 upgrade, and how much faster is it compared to USB 2.0? First, let's explore what USB 3.0 is.
1. USB 3.0 Definition
As per the international standard definition, USB (Universal Serial Bus) is a connectivity standard that allows devices to connect and facilitate data transfer or conversion.
The versions of USB are specified as 1.1, 2.0, or 3.0. USB 3.0 emerged in 2009, boasting speeds 10 times faster than its predecessor, 2.0. With its superior speed, USB 3.0 was considered a breakthrough in technology at that time.
In early 2015, the updated version of 3.0, USB 3.1 (USB Type C), was introduced. However, USB 3.1 has not yet become widely prevalent on devices. In the near future, we will still be using USB 3.0 as the primary tool for data transmission.
2. Distinguishing Between USB 2.0 and 3.0
The simplest way is that USB 2.0 ports are black, while USB 3.0 ports are blue. However, on some devices from distributors, the color of USB may still vary to match the device.
Additionally, next to USB 3.0 ports, there is often the 'SS' (Super Speed) symbol alongside the USB icon, whereas USB 2.0 ports only have the USB icon.
3. Theoretical Speed
As mentioned, the speed of USB 3.0 is 10 times that of version 2.0. Specifically, USB 2.0 has a maximum speed of 480 Mbps, which is 60 MB/s. In contrast, the standard speed of USB 3.0 is 4.8 - 5 Gbps, equivalent to 600 - 625 MB/s. Theoretically, USB 3.0 clearly outperforms USB 2.0.
Through this review, you've gained a brief overview of USB 3.0 and 2.0. Additionally, you can explore the Top 5 USB speed testing tools to monitor the transfer speed of your USB devices.
Whether it's 2.0 or 3.0, the USB drives we commonly use for data storage are susceptible to virus intrusion. In such cases, the best approach is to Format the USB. However, incorrect formatting procedures can lead to device damage. For safe USB formatting with the right process, refer to USB Formatting, USB formatting software.