I don’t use it anymore, I bought from the guitarist from Roomful Of Blues, he used it in his studio& so did I. Many people use them with a Behringer FB1010 foot controller for live use. It’s in excellent condition and it comes with a very nice rack case.
Here’s a description I got online:
The Eleven Rack can be used as a stand-alone guitar processor—without the need for a computer—for live applications. It includes incredible emulations of classic guitar amps, cabinets and stompboxes, as well as a powerful collection of studio-quality rackmount effects processors and microphone emulations. You can also incorporate your favorite stompboxes and effects into the Eleven Rack with an integrated effects loop that can be assigned and moved almost anywhere within the signal chain.
In addition, the Eleven Rack performs double duty as a high-quality interface for Digidesign Pro Tools, and it comes with Pro Tools LE 8 recording, editing and mixing software. The interface itself is dual-DSP powered, which means you won’t have to worry about latency issues when recording—and it also frees up processing power in the computer. There are eight simultaneous recording channels at 24-bit/96 kHz, with a wide array of ins and outs, including S/PDIF, AES/EBU, XLR, and 1/4" outputs, a mic input, and two 1/4" line level inputs. The Pro Tools software includes over 70 plugins, including reverb, delay, chorus, distortion, flanger, phaser, reverse, EQ and compression. It also contains powerful virtual instruments to create backing tracks, including drum machines, piano, organ, synthesizer and a synth/sample workstation with tons of instruments. Basically, it’s got everything you need to create a high-quality recording all on your own.