When you see your laptop or desktop USB ports you will find the different colors of the USB ports. Also sometimes your friend suggests you a blue one is better than white/black one. Think yourself Is it correct ?. While in this article I will try to clarify this concept.
Actually, USB port color is one of the general ways of identifying the types of USB but it is not a standard and recommended method for identifying the USB type.USB port color is not reliable or consistent among motherboards. It differs from Motherboard manufacturers and you have to identify them by reading the motherboard manual but in general motherboard manufacturers also follow a similar color pattern to remove confusion among general.
Table of Contents
In the market, we generally found USB ports with 4 different colors: White, Black, Blue, Teal Blue, etc. But there are more than that.
|White||USB 1.0, USB 1.1||up to 12 Mbps|
|Black||USB 2.x High Speed||up to 480 Mbps|
|Blue||USB 3.0 SuperSpeed||up to 5 Gbps|
|Red||USB 3.1 Gen 2
|up to 10 Gbps|
|Yellow||USB 2.0 or USB 3.0||
|Orange||USB 3.0||up to 5 Gbps|
Let's explain each of them in detail
White USB Port / Connector
Generally, White color USB Ports are Type A USB 1.x.It is the oldest USB standard which was introduced in Jan 1996. Speed ranges from 1.5 Mbit/s to 12 Mbit/s and the data transfer rate is only available in one direction. It was initially developed only for low-speed devices like Keyboard and Mouse. From initial data, Transfers support both synchronous as well as asynchronous. Also, Hot-plug and play features are available in white color USB ports.
Cable length supports from computer/laptop white USB port to devices is 5 meters. A shorter distance will have a better transfer rate.
Black USB Port /Connector
Generally Black Color USB Port are Type B USB 2.x.It is the second specification of USB introduced in 2000. Its max speed is 480 Mb/s and data transfer is available in one direction. They are called Hi-speed USBs.It is physically backward compatible with USB 1.1 which means that when you connect USB 2.x devices to USB 1.1 then it will function as it used to do. It contains all the features that the White USB port provides. It is more reliable than the White USB port.
Generally saying Black Color USB port is 40 times faster than White Color USB 1.x port. Black Color USB port supports a large variety of devices like Keyboard, Mouse, Speakers, Microphones, external HDD, CD-RWs, DVDs, Tap Drives, Digital Cameras, etc.
Cable length supports from computer/laptop black USB port to devices is 5 meters.
Blue USB Port / Connector
USB 3.x port is the Third Specification of USB. USB 3.x has two versions.USB 3.0 and 3.1. Blue USB Port is typically a USB 3.0 Port that was released in 2013. USB 3.0 port is also called a SuperSpeed (SS) USB port. It has a double S (ie SS) near the USB port in your CPU casing and laptop. Its theoretical maximum throughput is 5.0 Gbps which seems to be around 10 times faster than USB 2.0. But practically it doesn't give 5 Gbps and will sure give 5 Gbps in near future with the development of hardware technology.
Blue USB 3.0 Port is backward compatible with USB 1.1 and USB 2.0 devices. This port supports duplex communication which means data transfer in both directions can happen at the same time. In another word, it can read and write
at the same time.
If you have USB 2.0 (Black) and USB 3.0(Blue) in your computer then always connects high-speed devices supporting USB 3.x like a high-end External HDD to a USB 3.x(blue) port to achieve better high performance of the HDD. ANd use low endless performance requirement devices like Mouse and Keyboard to USB 2.0
Teal USB Port or Connector
Teal USB Port is typically a USB 3.1 Port. It is also called a SuperSpeed+ (SS+) USB port. It seems to be a purple or green color to someone. It has a double S with a + sign like SS+ near the USB port in your CPU casing and laptop. Its theoretical maximum throughput is 10.0Gbps.
This USB port is backward compatible with the previous versions like USB 3.0, USB 2.0 and USB 1.1, etc. This port also supports duplex communication.
Red USB Port or Connector
You will only find a few computer motherboards having Red Color USB Port. They are USB 3.1 Gen 2 and USB 3.2 Normal ports like Blue Color, Blue Color, and Black Color USB ports don't provide/deliver power when your laptop/desktop is power-off or sleeping or hibernating. But these Red Color USB port gets power even if your laptop/desktop is power-off or sleeping or hibernating. Due to this, these USB Ports are called Sleep and Charge Port or Always On ports.
So, now you can charge your phones, tablets, wireless gamepad, or any electronic device which supports USB ports at any time even if your laptop is turned off. They provide a high power supply from the previous version of USB. It can provide 1.8 Amperes * 5 Volts power to connected devices so that devices can be charged faster
then using in normal USB port.
Yellow USB Port or Connector
The yellow USB port is also the same as Red USB Port. Only the color is different. Some motherboard manufacturer uses a Yellow USB Port some uses Red Charge Port for Sleep and Charge Port. They come with USB 2.0 and USB 3.0 Specifications.
Charge and Sleep USB Port will be powered by the laptop battery even if the laptop lid is closed, hibernated, or turned off.
Orange USB Port or Connector
Orange USB Port is also the same as Red USB Port. They come with USB 3.0 specifications. They are also "Sleep and Charge" ports.
USB-PD and USB-BC Port or Connector
USB-PD is used in notebooks and laptops, and it has the ability to deliver anywhere from 10W (5V * 2A) to 100Watts (20V *5A) at 5A, with a range of voltages including 5V, 12V, and 20 V. The standards are intended to supply more adequate power than the original USB BC, which they are compatible with and which they eventually replaced. They have a red in color
The USB-BC standard is used by smartphones and tablets. They are also red in Color.
|Type||Released Date||Voltage(V)||Ampere(A)||Max Power(W)|
|USB PD 1.0||2012||5/12/20||1/2/3/5||100|
|USB PD 2.0||2014||5/9/15/20||3/5||100|
Ans: Razer Blade's ports are a made USB port green in color as they are matching the same shade as the company's logo and keyboard backlighting.
Ans: The standard USB 2.0 port is available in white or black. It has a current of 0.5 amps and a voltage of 5 volts. As a result, it is suitable for devices that require a power of (5*0.5) = 2.5 W. The red color USB port will carry a current of 1.8 amps and a voltage of 5 volts, companies make those ports because some external devices may require more power than a conventional USB 2.0 port can provide, this port can deliver 1.8 * 5 = 9 watts to external devices.
However, the speeds are the same in both normal and red color USB 2.0 port. 480 Mbps is equal to 60 MBps.
The same scenarios might happen for standard 3.0 USB and Red/Yellow USB 3.0
Ans: Yes: you can connect SSD to USB 3.0.
Ans: The sleep and Charge Port is one of the special USB ports which is used to charge external devices and those ports are normally in red, orange, and yellow colors.
Although the MacBook Air lacks an asleep and charging port, it can charge a phone while closed and asleep. You must first turn on the computer, then plug in your phone, and your phone will continue to charge even if you close the laptop lid.
Generally, all USB 3.0 ports and connectors are blue in Color.