C#使用usb设备的两种类型，MTP和UsbDevice废话不说，推荐两个库： MTP：https://github.c

废话不说，推荐两个库：

MTP简单来说就是插上去的手机，或者类似的多媒体设备，UsbDevice是普遍性的Usb设备包括手柄、蓝牙接收器等。

补充一个简单的获取USB设备的代码(引用自此回答)

using System;
using System.Collections.Generic;
using System.Management; // need to add System.Management to your project references.

class Program
{
    static void Main(string[] args)
    {
        var usbDevices = GetUSBDevices();

        foreach (var usbDevice in usbDevices)
        {
            Console.WriteLine(
                $"Device ID: {usbDevice.DeviceID}, PNP Device ID: {usbDevice.PnpDeviceID}, Description: {usbDevice.Description}");
        }

        Console.Read();
    }

    static List<USBDeviceInfo> GetUSBDevices()
    {
        List<USBDeviceInfo> devices = new List<USBDeviceInfo>();

        using var searcher = new ManagementObjectSearcher(
            @"Select * From Win32_USBHub");
        using ManagementObjectCollection collection = searcher.Get();

        foreach (var device in collection)
        {
            devices.Add(new USBDeviceInfo(
                (string)device.GetPropertyValue("DeviceID"),
                (string)device.GetPropertyValue("PNPDeviceID"),
                (string)device.GetPropertyValue("Description")
                ));
        }
        return devices;
    }
}

class USBDeviceInfo
{
    public USBDeviceInfo(string deviceID, string pnpDeviceID, string description)
    {
        this.DeviceID = deviceID;
        this.PnpDeviceID = pnpDeviceID;
        this.Description = description;
    }
    public string DeviceID { get; private set; }
    public string PnpDeviceID { get; private set; }
    public string Description { get; private set; }
}