This is a 2" x 2" board that can support up to 100 pins of a QFP package with 0.02" pitch.
Support up to 100 pins QFP, TQFP, PQFP package IC with 0.5mm pitch, 20 pcs. of 0603 package, and some thru hole passive components. 6 ground holes are connected a copper plane on the bottom side.