This Module is currently available.
Sinc Defero is a buffered quad attenuator with LED indication.
Nuff Said!
https://www.noiseengineering.us/shop/sinc-defero
These merchants probably sell this module. Huh?
Included in 11 Racks, 7 are public:
Yamaha FG-340 II Jumbo Dreadnought
Yamaha FS720S
Zvex Fuzz Factory Vexter
Fulltone OCD V1 Series 4
Cordoba Stage
Collegiate Guitar Vintage QR 1