zdravím, již existuje novější produkt poer usb PD viz External Link - zařadíte jej do sortimentu?
It won' t leave you in trouble
With USBcube, a smaller sibling of the classic PowerCube, you can charge your devices anytime and anywhere. It boasts four powerful USB ports (4x type A) and will be appreciated by every user of devices powered via USB. You can now join up to 4 gadgets at once! Thanks to its small size and low weight (only 63g), it is the perfect travel partner.