This is Dendrobium Bullenianum, which I purchased from Clown Alley Orchids on March 10th. I potted in into S/H right away, and it has done very little since. I dropped all the leaves on the right hand pseudobulb, but continues to look healthy.
The orchid wiki says [emphasis is mine]
Plant grows in cool to warm temperatures with medium amounts of light. Keep plant moist and fertilize during growth season. Unlike other Dendrobiums, this plant can be treated the same year round.
So this one does not need a winter’s rest. It should have beautiful blooms.