Complex sentence: The system bus was a wider and faster 128 bit memory bus called the 6XX bus and was also used in POWER3, RS64 and 601, as well as 604 based RS/6000 systems (with a bridge chip).
Split into simpler sentences: The system bus was a wider and faster 128 bit memory bus called the 6XX bus. It was also used in POWER3, RS64 and 601, as well as 604 based RS/6000 systems (with a bridge chip).