beautypg.com
Dell E1920H/E2020H/E2220H/E2420H/E2420HS/E2720H/E2720HS
User’s Guide
Monitor model: E1920H/E2020H/E2220H/E2420H/E2420HS/E2720H/E2720HSRegulatory model: E1920Hf, E2020Hb,E2220Hf, E2220Ho, E2420Hf, E2420Ho, E2420HSf, E2720Hb, E2720HSb