Internal connectors use 36 contacts, while external connectors use 26 contacts. The 0.8 mm pitch of the board mount connectors provides increased I/O density with greater channel capabilities yet requires less space on printed circuit boards. The receptacle connectors are designed for surface mount board processing. The solder tails of the internal EMI/RFI shield cages, however, are offered in a choice of straight pins for plated through-hole boards; or kinked pins for greater retention during wave soldering of plated through-hole boards; or gullwing design tails for SMT board processing.