Yamaha MX49 II keyboard
£250 including UK postage. Now sold
Yamaha's website: https://uk.yamaha.com/en/products/music_production/synthesizers/mx_bk_bu/index.html
over 1000 tweakable sounds
split/layer modes
16 parts/128-note polyphony
usb audio/midi
lightweight (3.8kg)
Includes original box, power supply, and manual.