C# conversions for GUID declaration

I have C# code that I am trying to convert to VB.NET. I've used a number of conversion utilities, but they don't help.  The code is ultimately trying to write date via USB to a GARMIN GPS system. I'm having trouble declaring the GUID in VB.net

Can anyone show me how to convert the following?
DEFINE_GUID(GUID_DEVINTERFACE_GRMNUSB, 0x2c9c45c2L, 0x8e7d, 0x4c08, 0xa1, 0x2d, 0x81, 0x6b, 0xba, 0xe7, 0x22, 0xc0);