This portion of the part number specifies a 30-position connector with 24 signal and 6 power contacts, 4 rows, press-fit termination, and through-hole mounting. The 'CCLF' suffix indicates the contact plating (gold or gold, GXT™ with 30.0µin (0.76µm) thickness) and that the part is RoHS compliant. This is the base part number for a series of Amphenol ICC PwrBlade® connectors.