I purchased this Dendrobium Sea Mary ‘Snow King’ from eBay (vendor: nia22d — Nia’s Orchids). It was in bloom when I purchased it, but the blooms were fading when it arrived (Nia called me to tell me this — a nice gesture by the vendor). Bright white blooms, clearly covering the plant when it is in bloom. I planted it into S/H right away, and placed it on the first row of plants on the west-facing window. It has grown well there.
I didn’t get a picture of the blooms, as they were already fading, but found this picture on the internet.