TC Electronics G-Force

Multi-effect rack processor, including reverb, delay, chorus/flanger, pitch, panner, filters, compression, gate, and drive.
[product info]

Placed on the Pumpkins' official eBay account on 2011/09/29, ending on 2011/10/09 at $800. The accompanying text read:

T.C. Electronics G-Force Guitar Effects Processor. Used by Billy Corgan. The unit has been kept in a smoke-free studio environment. No cables or manuals are included. A certificate of authenticity will be included. Unit is sold "as is".