While we are on the topic, here is my old 61 and new 88 keyboards.

Both are USB (Class Compliant) and have Midi out connections, so I can connect them to both the Computer and/or the MIDI-IN of my MOTU Audio Express. Can get a little confusing with all the keyboards which appear as selections in my software. There is actually a third option where I can connect the Midi-OUT of the 49 keys to the Midi-IN of the 88 keys. The 88 keys then has a second separate MIDI-OUT which can send via USB to the computer. In fact, the new 88 can separate sections of the keyboard to different outputs, but who has time for that? grin

By the way
M-Audio Keystation 61
StudioLogic SL88iStudio
- but you knew that... crazy

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BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, 1TB WD Black NVMe SSD, 2TB WDC Blue SSD, 1TB WD Blue, 2 TB SK NVMe, 6 TB External, Motu Audio Express 6x6