Support up to 72 pins SO, SOP, QSOP, SSOP, TSSOP, PSSOP package IC with 0.5mm pitch, 43 pcs. of 0603 package, 8 pcs. of 0805 package and some thru hole passive components. 6 ground holes are connected a copper plane on the bottom side. This is the older version of SchmartBoard. It requires expert soldering skills. For an easier and faster alternative consider the SchmartBoard|ez version of this product.