If you make two versions of a mixer, eg. one with 16 inputs and one with 32 inputs, these should be recorded as two separate products.
If you make a number of loudspeakers that each use the same network interface card, they should be recorded as individual products.
If you make a signal processor with optional audio input and output cards, each model should be recorded individually. Eg. ACME make two models of processor, one using Dante and one using Ravenna, each with three, 4 channel, I/O cards. These should be recorded as two products, each listing a maximum number of 12 inputs and 12 outputs.
Software that enables devices to become networked, should be listed as 'misc. device'.