This 2x16 (32 pin - 0.1 spaced) IDC Breadboard Helper is great in conjunction with any 32-pin IDC cables. It comes in two parts, a 'pin-through' socket and a male header. The socket straddles the center of a breadboard or Perma-Proto and then header plugs into the top of the socket. Since IDC cables are so standard, but a royal pain to use with breadboards, this is a good and cheap hack for prototyping. Works best when soldered in place. We have used these to prototype on a solderless breadboard but some customers report their breadboards don't play nice with the shorter pins so your mileage may vary
IDC 2X12 Wide Connector Kit (4 Pack)
This little 2x12 IDC Breadboard Helper is great in conjunction with any 24-pin IDC cables. It comes in two parts, a 'pin-through' socket and a male header. The so..
IDC 2X16 Male Header - 2.54mm (4 Pack)
These DIP IDC Headers are great for when you want to had IDC connectors to your custom boards. These 32 Pin (2x16) dual Inline male header connector can be cut ..