Thermal transfer label printer, 128MB SDRAM, 128MB Flash, RS-232, Ethernet, USB host, USB 2.0 (high speed mode), microSD card reader for memory expansion, WiFi/Bluetooth slot-in-ready, RTC & buzzer, up to 300 m ribbon capacity, label roll capacity up to 127 mm (5″) OD Standard model: LED LCD model: 3.5″ color TFT display