HPE Proactive Care 24x7 Service with Defective Media Retention - Extended service agreement - parts and labor - 3 years - on-site - 24x7 - response time: 4 h - for P/N: 871929-B21, 871929-B22, 871930-B21, 871930-B22, 871931-B21, 871931-B22, 871934-B21