The product is a 3-pack lot of SK Hynix 4GB 1Rx8 PC3 12800U-11-13-A1 desktop RAM modules. Each module has a capacity of 4GB, and they are DDR3 SDRAM DIMM modules with a bus speed of PC3-12800U. The RAMs have ECC memory features and are made in China. This product is ideal for upgrading or replacing RAM modules in desktop computers to improve performance and memory capacity. 3x4gb 12 gb
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