Servicer Replaceable Parts -ThinkPad T570 (20H9, 20HA, 20JW, 20JX), ThinkPad P51s (20HB, 20HC, 20JY, 20K0), ThinkPad T580 (20L9, 20LA), ThinkPad P52s (20LB, 20LC) - Lenovo Support US