NeXTSTEP 3.x was later ported to PA-RISC and SPARC-based platforms, for a total of four versions: NeXTSTEP/NeXT (for NeXT's 68k "black boxes"), NeXTSTEP/Intel, NeXTSTEP/PA-RISC and NeXTSTEP/SPARC.
Всего было четыре версии NeXTSTEP/NeXT (основанные на Motorola 68k «чёрных ящиках»), NeXTSTEP/Intel, NeXTSTEP/PA-RISC и NeXTSTEP/SPARC.