Battery, BIOS, CPU - processor, storage drive, keyboard, RAM - memory, monitor, motherboard, mouse, NIC - network adapter, printer, sound card - audio card, graphics card - video card. Hardware.Info is a .NET Standard 2.0 library and uses WMI on Windows, /dev, /proc, /sys on Linux and sysctl, system_profiler on macOS.

1. Include NuGet package from https://www.nuget.org/packages/Hardware.Info

    <ItemGroup>
        <PackageReference Include="Hardware.Info" Version="11.0.0.1" />
    </ItemGroup>
   

2. Call RefreshAll() or one of the other Refresh*() methods:

    class Program
    {
        static readonly IHardwareInfo hardwareInfo = new HardwareInfo();
   
        static void Main(string[] _)
        {
            //hardwareInfo.RefreshOperatingSystem();
            //hardwareInfo.RefreshMemoryStatus();
            //hardwareInfo.RefreshBatteryList();
            //hardwareInfo.RefreshBIOSList();
            //hardwareInfo.RefreshCPUList();
            //hardwareInfo.RefreshDriveList();
            //hardwareInfo.RefreshKeyboardList();
            //hardwareInfo.RefreshMemoryList();
            //hardwareInfo.RefreshMonitorList();
            //hardwareInfo.RefreshMotherboardList();
            //hardwareInfo.RefreshMouseList();
            //hardwareInfo.RefreshNetworkAdapterList();
            //hardwareInfo.RefreshPrinterList();
            //hardwareInfo.RefreshSoundDeviceList();
            //hardwareInfo.RefreshVideoControllerList();
   
            hardwareInfo.RefreshAll();
   
            Console.WriteLine(hardwareInfo.OperatingSystem);
   
            Console.WriteLine(hardwareInfo.MemoryStatus);
   
            foreach (var hardware in hardwareInfo.BatteryList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.BiosList)
                Console.WriteLine(hardware);
   
            foreach (var cpu in hardwareInfo.CpuList)
            {
                Console.WriteLine(cpu);
   
                foreach (var cpuCore in cpu.CpuCoreList)
                    Console.WriteLine(cpuCore);
            }
   
            Console.ReadLine();
   
            foreach (var drive in hardwareInfo.DriveList)
            {
                Console.WriteLine(drive);
   
                foreach (var partition in drive.PartitionList)
                {
                    Console.WriteLine(partition);
   
                    foreach (var volume in partition.VolumeList)
                        Console.WriteLine(volume);
                }
            }
   
            Console.ReadLine();
   
            foreach (var hardware in hardwareInfo.KeyboardList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.MemoryList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.MonitorList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.MotherboardList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.MouseList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.NetworkAdapterList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.PrinterList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.SoundDeviceList)
                Console.WriteLine(hardware);
   
            foreach (var hardware in hardwareInfo.VideoControllerList)
                Console.WriteLine(hardware);
   
            Console.ReadLine();
   
            foreach (var address in HardwareInfo.GetLocalIPv4Addresses(NetworkInterfaceType.Ethernet, OperationalStatus.Up))
                Console.WriteLine(address);
   
            Console.WriteLine();
   
            foreach (var address in HardwareInfo.GetLocalIPv4Addresses(NetworkInterfaceType.Wireless80211))
                Console.WriteLine(address);
   
            Console.WriteLine();
   
            foreach (var address in HardwareInfo.GetLocalIPv4Addresses(OperationalStatus.Up))
                Console.WriteLine(address);
   
            Console.WriteLine();
   
            foreach (var address in HardwareInfo.GetLocalIPv4Addresses())
                Console.WriteLine(address);
   
            Console.ReadLine();
        }
    }
   

Hardware.Info uses WMI (Windows Management Instrumentation) on Windows OS. For certain queries WMI takes 21 seconds to initialize the first time you use it, after that all subsequent queries will execute immediately. If WMI isn't used for 15 minutes it will have to be initialized again the next time you use it.

The 21 second initialization delay is caused by RPC that WMI uses internally. In RPC documentation it says that the RPC/TCP time-out interval is defined with a SCMApiConnectionParam registry value located at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control and that the default value is set to 21,000 (21 seconds).

You can avoid the 21 second delay by excluding the queries that cause it (see Settings).

HardwareInfo(bool useAsteriskInWMI = true, TimeSpan? timeoutInWMI = null)

The construcotr accepts two settings for WMI:

• useAsteriskInWMI causes WMI queries to use SELECT * FROM instead of SELECT with a list of property names. This is slower, but safer, more compatible with older Windows (XP, Vista, 7, 8) where a certain WMI property might be missing and throw an exception when queried by name. The default value is true.
• timeoutInWMI sets the Timeout property of the EnumerationOptions in the ManagementObjectSearcher that executes the query. The default value is EnumerationOptions.InfiniteTimeout. Changing this could cause the query to return empty results in certain cases.

In these two methods you can exclude some slow queries by setting the parameters to false:

RefreshCPUList(bool includePercentProcessorTime = true)

RefreshNetworkAdapterList(bool includeBytesPersec = true, bool includeNetworkAdapterConfiguration = true)

Setting includePercentProcessorTime and includeBytesPersec to false will exclude the queries that:

• cause a 21 second delay the first time they are called in Windows
• cause a 1 second delay every time they are called in Linux

Setting includeNetworkAdapterConfiguration to false has only a small impact on performance.

• 11.0.0.1
  • Added L1DataCacheSize and L1InstructionCacheSize in Windows, macOS, Linux
  • Fixed L2CacheSize and L3CacheSize in Windows, Linux
• 11.0.0.0
  • Fixed GetNetworkAdapterList in Windows - thanks to @isenmann
• 10.1.1.1:
  • Fixed CurrentClockSpeed in Windows - thanks to @jason-c-daniels
• 10.1.1.0:
  • Fixed GetCpuUsage in Linux - thanks to @glebov21
• 10.1.0.1:
  • Fixed CPU.Name and CPU.CurrentClockSpeed in macOS - by @davidaramant
  • Added CPU.MaxClockSpeed in macOS - by @davidaramant
• 10.1.0.0:
  • Fixed PercentProcessorTime in Windows - thanks to @C6OI
• 10.0.1.1:
  • Added GetOperatingSystem() in Windows, macOS, Linux - thanks to @adhip94
• 10.0.1.0:
  • Added GetBatteryList() in macOS - by @Tadelsucht
• 10.0.0.1:
  • Fixed GetBatteryList() in Linux - by @Tadelsucht
• 10.0.0.0:
  • Fixed GetDriveList() and GetMemoryList() in Linux - thanks to @misaka00251
• 1.1.1.1:
  • Added Memory.BankLabel, Memory.MinVoltage, Memory.MaxVoltage in Windows - by @AathifMahir
  • Added CPU.SocketDesignation, CPU.SecondLevelAddressTranslationExtensions in Windows - by @AathifMahir
  • Added Windows version check for WMI properties that require at least Windows 8
  • Added Windows version check for WMI properties that require at least Windows 10
  • Added XML summary for public properties in every class.
• 1.1.1.0:
  • Added IHardwareInfo so that HardwareInfo can be mocked - by @240026763
• 1.1.0.1:
  • Added two settings for WMI queries in Windows
  • Added three settings to exclude slow queries in Windows, macOS, Linux
• 1.1.0.0:
  • Fixed reading MemAvailable instead of MemFree in Linux - by @schotime
• 1.0.1.1:
  • Added CpuCore info in Linux - by @isenmann
  • Added CPU.PercentProcessorTime, CPU.CpuCoreList in Linux - by @isenmann
• 1.0.1.0:
  • Added CpuCore info in Windows - by @isenmann
  • Added CPU.PercentProcessorTime, CPU.CpuCoreList in Windows - by @isenmann
  • Added NetworkAdapter.BytesSentPersec, NetworkAdapter.BytesReceivedPersec in Windows - by @isenmann
• 1.0.0.1:
  • Added Battery.EstimatedChargeRemaining in Windows, Linux - by @reptail
• 1.0.0.0:
  • Added Battery.ExpectedLife in Linux
  • Added Battery.EstimatedRunTime in Linux
  • Added Battery.MaxRechargeTime in Linux
  • Added Battery.TimeToFullCharge in Linux
• 0.1.1.1:
  • Added Battery.DesignCapacity in Linux
  • Added Battery.FullChargeCapacity in Linux
• 0.1.1.0:
  • Added Battery.BatteryStatusDescription in Linux
• 0.1.0.1:
  • Added Monitor info in macOS
  • Added VideoController info in macOS
• 0.1.0.0:
  • Added CPU.L2CacheSize in macOS
  • Added CPU.L3CacheSize in macOS
  • Added Memory info in macOS
• 0.0.1.1:
  • Added BIOS.ReleaseDate in Linux
  • Added CPU.Manufacturer in Linux
  • Added CPU.L3CacheSize in Linux
  • Added Motherboard.SerialNumber in Linux
  • Fixed NetworkAdapter info in Linux
  • Fixed GetLocalIPv4Addresses() in macOS
• 0.0.1.0:
  • Added GetLocalIPv4Addresses() in Windows, macOS, Linux
  • Added Motherboard.SerialNumber in Windows
  • Added Drive, NetworkAdapter info in macOS, Linux
• 0.0.0.1:
  • All hardware info in Windows
  • CPU, RAM info in macOS, Linux