This year's Def Con entry badge was a working sampler keyboard, it even has a built-in puzzle that requires specific note inputs and linking with other badges. : r/synthesizers
Korg microSAMPLER | Sweetwater
Korg microSampler review | MusicRadar
Will there ever be a keyboard sampler..? - Gearspace.com
Korg Microsampler
EPS Sampler with 4X Mem. Exp. – Dave's Guitar Shop
Is there a Sampler/Synth with a dedicated Keyboard - General Discussion - Elektronauts