Shop › RS485 to USB Interface Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 RS485 to USB Interface from €30.00 RS485 to USB interface, available in 1.8 m and 5 m.Needed to Connect the Energy meter to the ColorControl GX. Length: 1.8m 5m Quantity: Add To Cart Added! RS485 to USB interface, available in 1.8 m and 5 m.Needed to Connect the Energy meter to the ColorControl GX.