There are several pre-compiled firmware options available to carry out different tasks using the VNC1L. VDAP (Vinculum Disk And Peripherals) provides the monitor port on the combined interface. USB Port 1 is configured for Host operation and supports HID, Printer, Hub, CDC, and FTDI peripherals. USB Port 2 supports these same devices and adds support for BOMS. VDIF (Vinculum Disk and FTDI monitor) is similar to VDAP except when an FTDI peripheral device is detected on PORT1, the monitor port is disabled on the combined interface and shifted to USB Port 1. VDIF only supports BOMS, HID, and printer devices on Port2.