The product is a single stick of SK Hynix 16GB 2Rx8 PC4-3200AA-SE1-11 laptop RAM designed for HP and Dell laptops. It features ECC memory, DDR4 SDRAM technology, and a SO-DIMM form factor. With a bus speed of PC4-25600 (DDR4-3200), this RAM offers a total capacity of 16GB and comes with a lifetime manufacturer warranty. Made in China, it has a height of 30mm and 260 pins for reliable performance. Tested and working. No returns no refunds.