Technology : Laser Color Max Resolution: HP ImageREt 3600 Print Speed : Up to 38 ppm (ISO, A4) Automatic Duplexing : Yes Media Sizes : Tray 1: A4, RA4, A5, B5 (JIS), B6 (JIS), 10 x 15 cm, A6, 16K, envelopes (B5, C5 ISO, C6, DL ISO); Custom: 76 x 127 to 216 x 356 mm; Tray 2: A4, A5, B5 (JIS), B6 (JIS), 10 x 15 cm, A6, 16K; Custom: 102 x 148 to 216 x 297 mm Total Media Capacity : ; Input Capacities: Up to 650 sheets, Output Capacities: Up to 250 sheets Interface : 1 Hi-Speed Device USB 2.0, 2 Hi-Speed USB 2.0 Host, 1 Gigabit/Fast Ethernet 10/100/1000 Base-TX network, Hardware Integration Pocket Monthly Duty Cycle (max) : 120,000 RAM: Standard: 1 GB, Maximum: 2 GB