The back of the machine also features a USB port, Famicom expansion port and microphone socket, which means you'll be able to play titles which require additional peripherals — as well as hook up the Japan - exclusive Famicom Disk System.
That includes a number of titles for an add - on that could be fittingly described as something of a «sequel machine,» the Satellaview which utilized the expansionport of the Super Famicom.