Lenovo SYSTEM BOARDS
5B21C21590
is compatible in the following Models:
Lenovo ThinkPad X Series laptops
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1000RUS
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1002BAU
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1A00DAU
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1CTO1WW
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1S04H00
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1S0FA00
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1S0FB00
ThinkPad X1 Carbon 7th Gen - (20R1, 20R2) Laptop - 20R1S0KH00
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SA0018AU
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SACTO1WW
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS01600
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS02C00
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS03S00
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS03U00
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS03V00
ThinkPad X1 Yoga 4th Gen (20SA, 20SB) Laptop - 20SAS03W00