Well I can write a lot about this module, but I already did on different parts and topic on this site. I made this module myself based on Hagiwo design. Used his schematic, changed the DAC chip to a thru-hole type and made pcb’s and panel for it. It’s a nice little quantizer with slide function. You can find more information on it on this website. If you want to build your own be sure to check out the shop. It’s fully open source if you want to make the pcb’s and panels yourself.
https://github.com/Quinienl/Hagiwo-Quantizer
https://www.quinie.nl/product/quantizer-hagiwo-pcb-and-black-alu-panel/