Haw. Rev. Stat. § 328-17.9: Supply of electronic equipment.

No person shall supply prescription information processing system equipment, including computer hardware, software, facsimile machines, and related equipment, to practitioners, pharmacists, pharmacies, or medical oxygen distributors, on the condition, agreement, or understanding that the recipient of the equipment shall not deal in the commodity of a competitor, shall not deal with a competitor, or shall deal only with persons identified by the supplier of the equipment.