L18C4P72, L18L4P71, L18L4P72, L18M4P72. Lenovo ThinkPad X1 Yoga 4th Gen / X1 Yoga 2019 Gen Series. Lenovo ThinkPad X1 Carbon 7th Gen / X1 Carbon 2019 Gen Series. Lenovo ThinkPad X1 Yoga 5th Gen / X1 Yoga 2020 Gen Series.
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