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Com to usb adapter

(2721 products available)

About com to usb adapter

Types of COM to USB adapter

Serial ports were used in the past to connect mice, keyboards, and printers to computers. However, the USB interface has replaced them because it is faster, more efficient, and can be used to connect a wide range of devices. Nevertheless, some modern computers may still have a serial port, while the device may have a USB port. This necessitates the need for a COM port to USB adapter to connect them. The COM port refers to the communication port, which could be of different types, including a 9-pin serial port, that is commonly referred to as the RS-232.

Therefore, the COM port to USB adapter features a typical USB type that can be plugged into the USB port of a device. On the other end, it features a connector that matches the specific COM port configuration, such as the 9-pin serial port. Its uses are quite versatile, for example, a person can use it to connect a serial device to a computer or laptop. For this to happen, the specific driver for the COM port to USB adapter will need to be installed on the computer for it to work correctly. When it is correctly installed, the computer will recognize the adapter and the connected serial device. However, unlike older computers that had the COM port, modern computers do not have it. Therefore, for users who need to access the COM port, they will need to use a COM port to USB adapter. This is a more efficient and cost-effective solution than having to buy a new computer with a COM port.

COM port to USB adapter does not come in many variations. It is essentially a cable with a USB connector on one side and a traditional serial port connector on the other hand. These connectors can vary, and they include the following;

  • USB-A to DB9/RS232: This is one of the most common types of COM port to USB adapter. DB-9 is the standard connector for serial communication. A USB-A connector is the original USB connector commonly found on computers and other devices.
  • USB-C to DB9/RS232: The USB-C connector is the latest standard for USB connectors. It is a small, oval-shaped connector that is easier to use. The USB-C to DB9/RS232 is often used to connect to network devices, routers, and switches that utilize a serial console port.
  • Micro USB to DB9/RS232: This COM port to USB adapter features a micro-USB connector on one end and a DB9 serial connector on the other end. A Micro-USB connector is smaller and more compact than the standard USB connector. It is commonly used for connecting smartphones, tablets, and other portable devices. The adapter allows these devices to connect to older devices that use serial ports for communication.
  • USB-C to DB25: This is another type of COM port to USB adapter. The DB25 connector has 25 pins and is larger than the DB9 connector. It is typically used for parallel ports on older computers. The USB-C connector is the latest USB standard and is commonly found on modern computers and laptops. This adapter allows devices with DB25 serial ports to be connected to computers with USB-C ports.

Functions and Features

  • Data Transfer:

USB-to-USB adapter cables can transmit data from one USB device to another. They let users connect two USB-A, two USB-C, or one USB-C and one USB-A. This makes it easy to transfer files between devices at fast speeds.

  • Charging Devices:

Some USB-to-USB adapters have features that allow charging. For example, some USB-A to USB-A adapters can charge a device using another device. If a person's phone runs out of power, but they have a power bank and a USB-to-USB adapter, they can use the adapter to power the phone. So, the adapter can help to avoid a situation where the phone's battery dies and there is no way to charge it.

  • Connecting Peripherals:

These adapters also allow people to connect two USB devices. This is helpful for some tasks. For example, a person could use a USB keyboard with a tablet. The adapter enables connecting the keyboard and the tablet. In this way, the keyboard could be used to type on the tablet. This shows how the adapter makes it possible to link USB devices and use them together.

  • Backup Solution:

USB-to-USB adapters can serve as backup tools. If a person's phone has important photos, they can connect a USB drive to the phone using the adapter. This allows transferring the pictures from the phone to the USB drive. As a result, the photos are stored in a second place. The adapter becomes a bridge that helps to create a backup of the photos. In case something happens to the phone, the photos are safe on the USB drive.

  • Expand Device Compatibility:

USB-to-USB adapters can make devices work together that might not usually be able to. For example, some devices have USB-A ports, but others have USB-C. An adapter with USB-A on one side and USB-C on the other can make these devices connect, even if they use different USB types. This gives people more options for connecting devices and using them in different ways.

Scenarios

  • Connecting to a Monitor or TV:

A USB-C to HDMI adapter allows the connection of a USB-C port to a TV or monitor. The monitor should only be turned on and set to the HDMI input when the cable is connected. The user's laptop or desktop should be unlocked to a recent screen to allow the computer to detect the external display. Windows 10 should be right-clicked on the Start menu button and selected from the list. Display settings should be selected from the pop-up menu. The monitor should be detected and appear in the display screen. The user should click on the monitor (1) or (2) to select it. The multiple displays drop-down menu should be clicked to select the desired screen option. Duplicate displays show the same screen on the device and monitor. Extend displays allow moving the mouse off the screen to the right to move it to the monitor. Second screen only shows the second screen on the monitor and not the main desktop. The Change the size of text, apps, and other items on the screen menu should be clicked to adjust the display. This allows adjusting the resolution to set the screen zoom level for the monitor. The user should move the slider to the left or right and click apply to adjust the display. The user should also click on advanced display settings to change the display resolution. The show only on 1 (or 2) or show only on 2 (or 1) option should be selected to display only on the screen or monitor. The screen should be set to sleep mode after a certain amount of time in the power and sleep settings. This saves battery power when the screen is not being used. The display should be turned on to wake the computer from sleep mode when not in use.

  • File Transfer:

The USB-C to HDMI adapter can be used to transfer files between devices. When transferring files from a USB drive to a smartphone, a USB-C to USB-A adapter can be used. The USB drive can be connected to the USB-C port of the adapter, and the adapter can be connected to the smartphone. Files can be transferred to an external hard drive, flash drive, or memory card to back them up. The USB-C to USB-C cable can also be used to transfer files between devices. The cable should be connected to the USB-C ports of both devices. The user should unlock the devices and follow the on-screen instructions to allow file transfer. Files can then be dragged and dropped between devices. AirDrop can also be used to transfer files between Apple devices. The adapter should be connected to the TV or monitor using the appropriate cable. The source input on the TV or monitor should be set to the port the adapter is connected to. The user should then unlock the device and follow the manufacturer's instructions to mirror the display. The screen of the device will then be mirrored on the TV or monitor. This allows viewing photos, videos, presentations, and other content on a larger screen. It can also be used for gaming or to show a movie. The user should then lock the device when finished to disconnect it from the TV or monitor. The source input should be set back to the original setting.

How to choose COM port to USB adapter

When buying a USB to COM port adapter, one should look at the connector type that the device has. This is because the adapter has to match the kind of connector on the device or cable. Ideally, the adapter comes with a USB connector on one end. The other end of the adapter has a different connector type, i.e., a 9-pin male RS-232 connector. Nonetheless, there are some adapters that have a 25-pin RS-232 connector.

It is important to note that the COM port connector type may vary from one device to another. Some devices have a 9-pin port, while others have a 25-pin port. Hardware manufacturers can provide the COM port details for their devices. This information is usually available in the user manual or on the manufacturer's website. It is also important to choose a reliable and durable adapter. Business buyers can go for models with a sturdy construction. Metal housing is more durable than plastic casing. Also, look for an adapter with gold-plated connectors. Gold plating is resistant to corrosion, so the connections will not rust with time. The adapter should have a built-in circuit board. It helps to reduce electromagnetic interference and signal loss.

The adapter should have a driver installation guide or mini CD. It should also be compatible with the laptop or computer's operating system. Some adapters are plug-and-play, while others require manual installation of drivers. The one that is plug-and-play will install the drivers automatically when it is connected. The COM port to USB adapter comes with different cable lengths. Consider the distance between the device and the laptop or computer before purchasing. Short cables are great for connecting devices that are close together. On the other hand, long cables are more flexible and allow space between gadgets.

It is also important to check the serial port's maximum supported data transfer rate. Choose an adapter that can handle the desired data transfer speeds. This information is vital because the COM port's maximum transfer rate is usually lower than USB 3.0's. That means the adapter may not be able to transfer data at the maximum speed if the COM port has a lower data transfer rate. The adapter's speed is also limited by the device's speed.

Q&A

Q1: What is the difference between a USB, a USB OTG, and a USB Type-C?

A1: A USB (Universal Serial Bus) is a standard cable that allows devices to connect and share power and data. A USB On-The-Go (OTG) is a variation of the USB specification that enables mobile devices to act as hosts and connect to other USB devices, such as keyboards, mice, and storage drives. A USB Type-C is a recent USB connector that provides faster data transfer speeds, higher power delivery, and reversible plug orientation. It is crucial to note that a USB-C adapter may support different USB specifications, such as USB 2.0, USB 3.0, USB 3.1, or USB 3.2, which affect data transfer speed and power delivery capabilities.

Q2: What devices work with a USB Type-C Adapter?

A2: Devices that work with a USB Type-C adapter include laptops (MacBooks, Chromebooks, etc.), tablets (iPad Pro, Galaxy Tab S7, etc.), smartphones (Samsung Galaxy S20, S21, S22, S20+, S21+, S22+, S20 FE, S21 FE, S22 FE, Note 20, 21, 22, and Note 10 Lite, Apple iPhone 12, 13, 13 Mini, 13 Pro, 13 Pro Max, 14, 14 Mini, 14 Pro, 14 Pro Max, and 14 Pro), gaming consoles (Nintendo Switch, etc.), and audio devices (headphones, USB-C earbuds, etc.).

Q3: Are there USB Type-C Adapters with additional ports besides the composite AV and USB?

A3: Yes, some USB Type-C adapters have additional ports like HDMI, Ethernet, SD Card, VGA, DisplayPort, Thunderbolt, Ethernet, and Ethernet.

Q4: Can a composite AV cable connect to a USB Type-C port?

A4: No, a composite AV cable cannot connect to a USB-C port without an adapter. A USB-C to composite AV adapter is needed to connect older devices with composite AV output to modern devices with USB-C port.