Lenovo Essential Service + Premier Support - Extended service agreement - parts and labor (for 138TB (18x 7.68TB SSD) Pack Premium) - 3 years - on-site - 24x7 - response time: 4 h - for P/N: 7D4FCTO4WW, 7D4FCTOPWW, 7Y41CTO1WW, 7Y41CTOLWW, 7Y58CTO1WW, 7Y58CTOLWW