This listing is for a used Acuna SL73 73-key MIDI controller. It may suit musicians, producers, or home studio buyers looking for a full-width controller with a wider key range than compact models. The 73-key format can be a practical middle ground for players who want more room for two-hand parts without moving up to a larger keyboard. Free shipping is included, which may help when comparing total cost. Because the condition is listed as used, buyers should review the photos and description carefully for cosmetic wear, functionality, and included accessories before purchase. Check the listing for full details. Acuna SL73 73-Key MIDI Controller. Color: Black, Width: 41 in, Condition: Used. Listed at 349.99 USD. USB MIDI Port for class-compliant operation without drivers. Number of Keys: 73. Sewing Machine. Like what you see?. Who We Are: Founded in 2000, Sunnking Sustainable Solutions is a leader in electronics reuse, recycling, and resale based in Brockport, NY.