USB device product ID. Default value for Antilatency Sockets is 0x0000
ushort pidMask
USB device product ID bit mask. A set bit means that the corresponding bit in the actual device usb pid field should match the bit in pid field. For example, filter with pid = 0x01 and pidMask = 0xF0 cover devices with pid in range 0x00 .. 0x0F.