ReadyPlug USB Cable Compatible with HP Photosmart c4780 All-in-One Printer (6 Feet, Black) ReadyPlug Data Cable Compatible with HP Photosmart c4780 All-in-One Printer USB 2.0 High Speed Cable upto 480mbps Length: 6 Feet (1.8 Meters) - Color: Black For PC or Mac Computer ReadyPlug Lifetime Warranty