what is the difference between blue and black usb ports?
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The blue indicates that it's USB 3.0, but it's not "standard". ... Blue is usb 3.0. Black is usb 2.0. Blue is much faster If your connected device supports usb 3.0 if not then there is no difference.
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The most visible difference between the two adapters is color. Most singlemode SC/PC adapters are blue and SC/APC adapters are green. ... SC connectors correspond with the adapter; most singlemode SC/APC connectors have green outer shells while singlemode SC/PC connectors have blue outer shells.
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The main difference between a serial port and a parallel port is that a serial port transmits data one bit after another, while a parallel port transmits all 8 bits of a byte in parallel. ... Computers have both serial and parallel ports along with newer technology called a USB (Universal Serial Bus) port.
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A USB type C port may support USB 3.1, 3.0 or even USB 2.0. USB 3.1 Gen1 is just a fancy name for USB 3.0, which provides speed up to 5Gbps while USB 3.1 Gen 2 is another name for USB 3.1 which provides a speed of 10Gbps.
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USB A-Type: This is the standard rectangular female port found on computers and other devices. USB B-Type: Most USB 2.0 printer cables, scanner cables and some external hard drive cables are B-type connectors. They are small and square. USB C-Type: These are the newest USB connectors on the market.
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The Standard-B design is used for connecting large peripheral devices, such as printers or scanners, to a computer and was made for the USB 1.1. Drastically smaller, the Mini-B ports are found in older portable devices like digital cameras and older portable drives, and are becoming obsolete.
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Outwardly, the most noticeable difference between a micro USB and a mini USB cable is the overall size. The micro USB is smaller between the two. A mini USB is relatively smaller than a typical USB, however, it is still somewhat larger than the micro USB.
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USB 2.0 offers transfer rates of 480 Mbps, and USB 3.0 offers transfer rates of 4.8 Gbps — 10 times faster. ... USB 2.0 provides up to 500 mA whereas USB 3.0 provides up to 900 mA. The USB 3 devices provide more power when needed and conserve power when the device is connected but idling.
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What is the difference between USB 2.0 and USB 3.0? ... First the transfer rates: USB 2.0 offers transfer rates of 480 Mbps and USB 3.0 offers transfer rates of 4.8 Gbps - that's 10 times faster. Note that the transfer speeds also depend on the device in use in addition to the bus type and USB ports and cables.
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Since USB 2.0 and USB 3.0 ports may coexist on the same machine and they look similar, the USB 3.0 specification recommends that the Standard-A USB 3.0 receptacle have a blue insert (Pantone 300C color). The same color-coding applies to the USB 3.0 Standard-A plug.
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The main difference is that a Type-A USB is generally designed to connect as host to other USB devices and a Type-B USB is generally there to control peripheral devices. As a sample, you can go through how your desktop computer is connected with your printer.
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One big one: PS/2 is a "port" while USB is a "bus" The difference is a port is designed to connect a single device, while a bus is designed to connect many devices together. I currently have about 5 USB devices connected to my computer. ... With PS/2 I'd need a separate connector for each device.
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When comparing 2.0 and 3.0 there are a few major differences. First the transfer rates: USB 2.0 offers transfer rates of 480 Mbps and USB 3.0 offers transfer rates of 4.8 Gbps - that's 10 times faster. Note that the transfer speeds also depend on the device in use in addition to the bus type and USB ports and cables.
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USB 3.0 Type B plugs are larger than USB 2.0 (or earlier) Type-B plugs; therefore, USB 3.0 Type-B plugs cannot be inserted into USB 2.0 (or earlier) Type-B receptacles. Micro USB 3.0 (Micro-B) plug and receptacle are intended primarily for small portable devices such as smartphones, digital cameras and GPS devices.
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['USB Standard-A, "male" connector, which interfaces with the host computer.', 'USB mass storage controller, which is a microcontroller with on-chip ROM and RAM.', 'Test point, used for loading code into the microcontroller.', 'Flash memory chip, used to store data.']
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First, check the physical ports on your computer - USB 3.0 ports are sometimes (but not always) blue in color so if any of your USB ports are blue then your computer is equipped with USB 3.0. You can also check the logo above the port for the USB 3.0 SuperSpeed logo (pictured below).
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The implication certainly is that USB ports can go bad. My guess is that it's more 'dirt' related than anything else; the connectors are getting a little dirty over time since they are exposed to the elements. The software can get confused, certainly, but that's normally something you can clean up.