Complex sentence: The original Famicom and the re-released AV Family Computer both utilized a 60-pin cartridge design, which resulted in smaller cartridges than the NES, which utilized a 72-pin design.
Split into simpler sentences: The original Famicom and the re-released AV Family Computer both utilize a 60-pin cartridge design. This yields smaller cartridges than the NES, which utilizes a 72-pin design.