... digital advertising screen 1. can be add touch function 2. smart appearance 3. logo display Product HQ200-1 20inch ... memory: (optional)USB: high speed USB 2.0 (Host)3.Others:Power supply: AC110V-240V, 50/60HZWorking temperature: - ... Financial Organizations: Banks, negotiable securities, funds, insurance companies, etc.3.Non-profit Organizations: Telecommunications, post offices, hospital, schools, ...