USB MIDI interface with 4 MIDI inputs and outputs, includes driver CD and cables. - Model: UM-4 Super MPU64 - Connection Type: USB - MIDI In/Out: 4 IN/OUT - Accessories: Driver CD, Instruction Manual, Cables - LED Indicator: Connection status display - Country of Manufacture: Japan Thank you for viewing. I purchased this a long time ago and stored it for a long time after using it a few times. The outer box has some dirt and damage, but the contents are in pretty good condition considering their age. This is a rare, made-in-Japan product from a long time ago, but because the official drivers are old, I tested it for this listing using unofficial drivers in a Windows 11 environment with Cubase 12, and the input and output worked normally. However, due to the driver specifications, I could only verify MIDI In 1. As a bonus, I will include 3 sets of MIDI cables. No claims, no returns, and no price negotiations, please.