Universal Compatibility: for ThinkPad X1 Carbon (2nd 3rd 4th Gen ONLY!). ; X1 Yoga (1st Gen ONLY!). ; T Series T431s T440 T440p T440s T450 T450s T460 T460s T470 T470s T550 T560 T570 T550; Z Series Z50-70 Z50-75; X Series X240 X240S X250 X260 X270; E Series E431 E440 E450 E455 E460 E465 E470 E475 E531 E540 E550 E550c E555 E560 E565 E570 E575; L Series L440 L450 L460 L470 L540 L560 L570; B Series B40-30 B50-30 B50-35 B50-70 B5400.
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