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parts-quick 4GB Memory for Lenovo IdeaPad S540 (14), IdeaPad S540-15IML (15) Series DDR4 PC4 2400MHz SoDIMM Upgrade - Walmart.com
Can't Find m.2 slot My laptop model is Lenovo IdeaPad s540 15 inch It should have it somewhere but I can't locate where it is any help is appreciated : r/laptops