PROFESSIONAL-Professional color matching-Automatic duplexing function for easy office documentation-Up to 24 A4 / 26 Letter ppm high print speed PRODUCTIVITY-512MB standard memory-Dual Core,1GHz processor-Up to 50000 page monthly duty cycle boosts more productivity CONVIENIENT-Print, copy, scan and fax all in one machine-Make your printing more convenient with network and optional Wi-Fi connection-Various media types and sizes supported with smooth envelope printing-2.8'' touch screen LCD screen easy to use