The four port arduino device is being manufactured to be used at Big House 8, and subsequently rented out to other majors.
For those not in the know, they basically allow UCF on vanilla Melee so it's possible to use it even at Nintendo sponsored events. They also enable and disable UCF per-port, so the weirdos like N0ne can choose to disable it if they want while their opponent can have it enabled.
But... since they need to cover the cost to have the initial batch made, it's a compendium goal.
For those not in the know, they basically allow UCF on vanilla Melee so it's possible to use it even at Nintendo sponsored events. They also enable and disable UCF per-port, so the weirdos like N0ne can choose to disable it if they want while their opponent can have it enabled.
But... since they need to cover the cost to have the initial batch made, it's a compendium goal.