[Don Plumley]

What Whisky said. I'm not sure that you can get it to run at 55 deg, and the vibration is a killer for wine. Plus they are really a sealed box, a good wine fridge (which btw is a constant temp unit, it will work as a heat pump if it gets too cold, cheap ones don't do that) vents to the outside so you reduce condensation (forms mold) and allow some oxygen interchange.

Rapid temperature fluctuation is the killer. If your office temp stays relatively constant, that's a great environment. I store a bunch of cases in my basement where even on the hottest day it is still nice and cool.

Don't forget to control light too - keep the wine in the boxes, on their sides.