I have 5 laptop RAM modules, original and in excellent condition, removed from laptops (upgraded). Details are as follows: First: DDR3L RAM (3 pieces) • Type: Samsung • Capacity: 4GB (per piece) • Speed: PC3L - 12800S Second: DDR4 RAM (2 pieces) • First piece: Original Samsung brand • Capacity: 4GB • Speed: PC4 - 2666V • Second piece: Kimtigo brand • Capacity: 4GB • Speed: PC4 - 2666V Condition: Used, original, and working perfectly.