This lot of 36 mixed desktop RAM memory modules includes a mix of 8GB and 16GB DDR4 server ECC reg modules from assorted brands. The DDR4 SDRAM modules have a form factor of DIMM, with a total capacity of 16GB and a capacity per module of 16GB. These non-ECC memory modules have a voltage of 1.5V and a bus speed of PC3-12800 (DDR3-1600). They are made by Samsung and have 240 pins, and are all manufactured in the United States. Perfect for upgrading or replacing RAM in servers or desktop computers, this assortment provides a variety of options for expanding memory capacity.