The original Thunderbolt was capable of a transfer rate of 10Gbps, the same as USB 3.1. The newest version, Thunderbolt 3, is capable of 40Gbps transfers. ... Not only is Thunderbolt 3.0 much faster than USB 3.1, it offers this boost in performance using the reversible Type-C USB port.
More and more mobile phones are now using the data line of the Type-C (or USB-C) interface. Although all Type-C looks the same, there are actually many different types.
At the most basic level, Type-C simply refers to this particular USB plug, plus some cable wiring specifications. So Type-C only tells you what the line looks like, it doesn't describe any specific speed, capabilities, or supported data protocols. It is basically designed as a more modern, future-proof plug. Type-C plugs have more pins, so it can do more "things" and the plugs are symmetrical, so don't be afraid to plug them in.
In addition to the appearance, we also need to consider some of its parameters, such as power, data transfer rate. Although it does not describe any particular speed or power function, it still has the smallest specifications. For example, all Type-C cables should support at least 3 amps of current and 60 watts of power. Moreover, since both ends of the TYPE-C cable are identical, it must be connected so that it can send data and power in the same way, which is called a "dual role."
This is different from the previous USB cable. The "host" side (such as your computer) usually has a USB-A connector, while the "device" has other connectors, such as Micro-USB, Mini-USB or USB-B. .
Let's take a look at the different possible speeds of the TYPE-C cable. Some people may already be familiar with USB 3.1 or "Super Speed" USB, which supports speeds up to 10Gb. Obviously, TYPE-C is not one of these things. Similarly, Type-C is just a connector, and USB 3.1 is a data transfer standard. Instead, Type-C cables can use one or more of these USB standards. This can be USB 2.0, 3.0, 3.1 Gen1 or 3.1 Gen2. Depending on the USB speed grade it uses, it will have a different maximum speed. This means that even though Type-C is the latest new connector, it may be as fast as a normal usb2.0 cable, only 480Mbps. Of course, it may also support USB 3.1. So pay attention to the parameters when buying the line.
Look at the current and power. Some charging lines can reach 5 amps and 100 watts, which is much higher than the standard 3 amps and 60 watts. However, not all TYPE-C cables or devices can do this. Type-C also has some special features if the cable, charger and device support power. For example, to charge a device as large as a display, without plugging the plug to the wall, all data and power are transmitted through the TYPE-C cable.
In addition, power transmission is more than just sending power, it also conveys information about connected devices. Because if the cable or device does not support power, the power will only send 3A by default, but if it sees it supports power, it needs to know more information, such as how much power to use. In addition, the power supply can take advantage of TYPE-C's "dual role" capability, so a port can be used as a power input or output, or even switch between modes. That's why in the latest Mac computers, cables can be charged by plugging them into the TYPE-C port, and all of these ports can also be used to power the device itself.
Let's take a look at the different protocols supported by TYPE-C, called "alternate mode". There are currently four, DisplayPort, ThunderBolt, HDMI and MHL. MHL is used to connect smartphones and TVs. Micro-USB, which is commonly used in mobile phone HDMI adapters, uses MHL. As before, any given TYPE-C cable may or may not support these protocols, although these protocols may not necessarily use TYPE-C. Obviously, DisplayPort and HDMI have their own interfaces, but ThunderBolt 3 will use TYPE-C exclusively. There are actually two types of ThunderBolt 3 cables. There is an "active" cable with 40Gbps and a passive cable with 20Gbps.
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Post time: Aug-28-2018