Standard-density D-sub connectors utilize a “size 20” signal contact. Each contact can carry up to 7.5 A. The number of contacts for connector sizes one - five of the standard-density family is 9, 15, 25, 37 and 50 contacts. The high-density D-sub uses a smaller “size 22” contact. The smaller contact can carry up to 5 A per contact and the different connector sizes can hold 15, 26, 44, 62 and 78 contacts.