High quality double-walled clamshell design6 inches per second print speed64 MB SDRAM and 128 MB Flash memory (DA220/DA320)Easy media loadingUSB 2.0 (High speed mode)TSPL-EZ firmware emulates Eltron® and Zebra® languages out of the boxBluetooth 4.0802.11 a/b/g/n (DA220/DA320)ENERGY STAR® qualified..