Attributes . ThinkPad 13 1st Gen Windows (Machine Types: 20GJ, 20GK), ThinkPad 13 2nd Gen Windows (Machine Types: 20J1, 20J2?, ThinkPad P40 Yoga (Machine Types: 20GR, 20GQ), ThinkPad Yoga 260/S1 2nd Gen (Machine Types: 20FD, 20FE, 20GS, 20GT), ThinkPad Yoga 460/S3/Yoga 14 (Machine Types: 20EL, 20EM, 20G0, 20G1, 20FY), ThinkPad X1 Carbon 4th Gen (Machine Types: 20FB, 20FC), ThinkPad X1 Yoga 1st Gen (Machine Types: 20FQ, 20FR) . Names