QFP & Small Outline (SO) Prototyping Adapters Aries QFP and Small Outline (SO) Prototyping Adapters feature an Au flash pin plating, UL94V-0 rating, and a pin insulator with polyester construction. The QFP adapters mate common QFP packages to standard breadboard and breakout boards for rapid prototyping. Small Outline adapters mate SOT23, SOIC, MSOP, or TSSOP packages to a standard breadboard and breakout boards for easy prototyping.