Here's a Yamaha PSR-340 MIDI Synthesizer Keyboard, it's still working fine. I'm including an AC adapter with it, it's not an original one but it has the correct specifications. I don't have floppy disks on hand to verify the floppy drive again currently, but everything else is confirmed to be working fine. There is some cosmetic wear to the case in spots, but overall it's in excellent condition.
I priced this cheaper than this model regularly sells for on ebay, feel free to check current pricing.
