This product is a job lot of 12x 4GB DDR3L PC3L-12800 Samsung laptop RAM modules. Each module has a total capacity of 4GB and is designed in a SO-DIMM form factor. The bus speed of these DDR3L modules is PC3L-12800 (DDR3L-1600). Perfect for those looking to upgrade their laptop's memory capacity with quality Samsung RAM. 5x 4GB DDR4 7 x 4GB DDR3 PC3L 12800s
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