DDR4 - module - 32 GB - SO-DIMM 260-pin - 2666 MHz / PC4-21300 - CL19 - 1.2 V - unbuffered - non-ECC - for ThinkPad P1 20MD 20ME P1 (2nd Gen) 20QT 20QU P43s 20RH 20RJ P52 20M9 20MA P53 20QN 20QQ P53s 20N6 20N7 P72 20MB 20MC P73 20QR 20QS T490 20N2 20Q9 20QH 20RX 20RY T590 20N4 X1 Extreme 20MF 20MG ThinkStation P330 30CE 30CF 30CG