Alesis Vortex MK2 Wireless Keyboard Controller

Alesis Vortex White 37-Key USB MIDI Keytar Controller Tested Preowned from Japan

Alesis Vortex: USB/MIDI Keytar Controller - No Power Cord Or Battery Covers

Alesis Vortex USB/Midi

Alesis V25 25-Key USB MIDI Keyboard Controller w/ Pads & Knobs (No PWR Cord)

Alesis Vortex Wireless 2 Wireless USB/MIDI Tomahawk Shoulder Keyboard Controller

Alesis VI25 25-Key USB MIDI Semi-Weighted Keyboard Controller Drum Pads - Black

Alesis V Mini 25-Key USB MIDI Keyboard Controller w/ Pad Triggers