For sale, 

a Midi Keyboard controller Roland A-300 PRO.

• Velocity-sensitive 32 keys with channel aftertouch
• Inspiring feel and response for serious players
• 45 assignable controls: knobs, sliders, buttons, transport and more
• 8 Dynamic Pads for finger drumming and MIDI triggering
• Sure-grip Pitch Bend/Modulation Stick
• Expand playability with sustain and expression pedals (available separately)
• USB Bus Powered — no AC adaptor required (AC adaptor is an optional)
• Durable Roland-quality manufacturing and craftsmanship
• Works with any DAW on Mac or PC

More info at https://www.roland.com/global/products/a-300pro/

It was ordered as spare parts and was almost not used. All parts, such as keys, knobs, buttons, and the joystick, feel new.