Question about Pale Blue AAA USB-C

Any USB cable with a USB plug can be used for charging. A special feature of the supplied cable is the splitting to 4 USB-C plugs so that up to 4 batteries can be charged simultaneously. The cable can be purchased alone in the online shop of the manufacturer pale blue, but it only supplies the USA. digitec/m-electonics as distributors in CH do not seem to have it on sale.