Complex sentence: Its firmware is developed to directly convert PS/2 scan codes to the MSX keyboard scan codes, thus is fully transparent to the applications, allowing using designed controller unit with different MSX-compatible machines and for different localization setups.
Split into simpler sentences: Its firmware is developed to directly convert PS/2 scan codes to the MSX keyboard scan codes. Thus it is fully transparent to the applications, allowing use of the controller unit with different MSX-compatible machines and for different localization setups.