The PCBA or printed circuit board assembly is in every product made today that has some sort of electronics. Cheap and reliable these mass produced boards have evolved to contain entire computers. This one is embedded in acrylic in a pen that my brother Mark made for me recently. It's the perfect fashion accessory for the geek turned manager. Canon 40D, 1/30 sec @ f/4.0, ISO 400, 100mm macro with Canon Lifesize Adapter. The lighting comes from two LED light panels.