For sale: Three laptop RAM modules of type DDR3, DDR4. Brand new, taken from the laptop after an upgrade, guaranteed. Specifications are as follows: Type: DDR3 Speed: 1600MHz Size: (8GB new) + 4GB Manufacturer: (ADATA) + SAMSUNG Voltage: 1.35V Condition: Like new Price: 150 Type: DDR4 Speed: 2666MHz Size: 4GB Manufacturer: Samsung Voltage: 1.2V Condition: Like new Price: 50