Zebra ZD421t, 8 dots/mm (203 dpi), USB, USB Host, BT, Wi-Fi
Zebra ZD621d, 12 dots/mm (300 dpi), RTC, USB, USB Host, RS232, BT (BLE), Ethernet, grey
Zebra ZD421c, cartridge, 12 dots/mm (300 dpi), RTC, EPLII, ZPLII, USB, USB Host, BT (BLE), grey
Zebra ZD621d, 8 dots/mm (203 dpi), cutter, disp., RTC, USB, USB Host, RS232, BT, Ethernet, Wi-Fi, grey