Complex sentence: At one time staggered pins were thought to be an expensive solution, but many contemporary connector families now come with staggered pins as standard; for example, they are used on all modern serial SCSI disk-drives.
Split into simpler sentences: At one time staggered pins were thought to be an expensive solution, but many contemporary connector families now come with staggered pins as standard. For example, they are used on all modern serial SCSI disk-drives.