Minmax Electronics offers 4 DIP Ice Cube Relays. Minmax Electronics deals with IC Testers, Telecom Tutors and Microprocessor based Equipments. The 4 DIP Ice Cube Relays are educational interface cards that are connected to Microprocessor and Microcontroller trainer kits through 26 pin FRC cable extenders. Sample assembly language programs are supplied with the interface cards. The 4 DIP Ice Cube Relays are controlled through the port lines. The NO/NC contacts of relays are terminated.