The Roland SP-404MKII is a high-performance sampler with 16 pads and four control knobs. - Brand: Roland - Model: SP-404MKII - Function: Sampler - Connectors: USB, MIC/GUITAR - Control Knobs: 4 knobs - Number of Pads: 16 pads - Bottom: Non-slip rubber - Package: Comes with original box Thank you for viewing. I used it 2-3 times after purchase and then stored it. I have confirmed that there are no functional issues during use, and I have only performed a factory reset and startup check before listing. The original box and power adapter are also included.