No, not the operating system kind. The kind in walls. I have none, as I seem to be in the only basement office on this outside wall that lacks a window for whatever reason.
I'm not complaining, though! I've been in a windowless basement office before, and mine's not the only windowless one down here. Better still, it occurred to me after over a week that this was the first time I've ever had a private office, with a door I can close and everything.
Big downside? The HVAC seems to shut off about 5:30, and the air down here becomes pretty still pretty fast. I guess that's a hint I should leave now.