A Smart consumer should always look around for the best price to best quality. Know that you reached both at NemixRAM. Here at NemixRAM we only carry grade A computer memory that passed all of the JEDEC DRAM FLASH and SRAM requirements. Inexpensive/used computer memory, while possibly will work on your system, could cause instability, wrong information being written into your data, and possibly damage to your hardware (Hard drives, Motherboard)! There are other sellers that can offer you comparable product for less, but you must be wary: they can potentially be selling used/refurbished products or memory that uses cheap-grade material! These practices could have higher costs in the long run for you! Trust us when you buy from NemixRAM, you will receive only the highest quality memory with uncompromisable quality testing.