Those are hard caned dendrobiums. They can be some of the easiest orchids to grow. They can handle amazing amounts of sunlight, and even if the older growths leaves burn, the new growth will handle it....even on the highest levels. There should be a care sheet somewhere on the sight for Dendrobiums. Mine can handle from 50-100 degrees. The hotter the temps, the more you water them. And they like to be given the same kind of orchid fertilizer you would use for a Phalaenopsis. They like small pots and you let them dry out before watering again. Outside, water every 2-3 days. Inside water every 4-6 days.
Lucky You! You'll enjoy growing these.