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This is a 4GB Samsung DDR3L (PC3L) desktop RAM module operating at 1600MHz (PC3-12800).
It features a low voltage design (1.35V) for energy efficiency.
The module is manufactured in the Philippines and is a 240-pin DIMM form factor. [1, 2, 3, 4, 5]
It is tested. If there is any issue, you can return it within 3 days with appropriate proof.
Otherwise, if you want to return it, you will get 80% cashback.