1. Speed • SCX-483x series : 31 ppm in A4 / 33 ppm in Letter • SCX-5x3x series : 35 ppm in A4 / 37 ppm in Letter 2. Processor • SCX-483xFD/HD : 360 MHz • SCX-483xFR / SCX-5x3x series : 600 MHz 3. Printer Languages • PCL6, PS3 4. Memory (Std / Max) • SCX-483xFD/HD : 128 MB / 384 MB • SCX-483xFR / SCX-5x3x series : 256MB / 768 MB 5. Interfaces • High Speed USB 2.0 • 10/100 BaseTX network connector (SCX-483xFD/HD) • 10/100/1000 BaseTX network connector (SCX-483xFR / SCX-5x3x series) • 802.11b/g/n wireless LAN (SCX-573xFW) 6. ADF (SCX-483xFD/HD) / RADF (SCX-483xFR/ SCX-5x3x series) 7. Toner cartridge (Initial / Sales) • SCX-483x series : 2K / 2K, 5K • SCX-5x3x series : 5K / 2K, 5K, 10K