Complementary types MH 21 plus 5 and MH 24 plus 7 connectors allow mixed configurations, combining 6A contacts with either 15A contacts as used in the H15 and H16 types, or 40A contacts. Male 24 plus 7 connectors are offered in versions with angled 6A and 15A PCB termination contacts, or angled PCB 6A with fast-on 15A contacts for wire termination. The female 24 plus 7 versions come with a choice of 6A crimp, solder tail, or wire wrap contacts, combined with 15A fast-on contacts. The 21 plus 5 connectors are for board to board applications, using male angled 6A and 40A contacts, which are mated to straight female solder pin contacts. Additional color coding keys can be fitted to the 21 plus 5 types, which are then mounted to the flanges with no loss of contacts.