Since memory plays a critical role in your datacenter, HP Qualified Memory is sourced from tier 1 DRAM suppliers only. More importantly, the rigorous testing & industry leading qualification process extends beyond standard industry practice. HP Smart Memory verifies that your memory has been tested & performance tuned specifically on HP Pro Liant servers. Most third-party memory vendors simply don't do this or aren't capable of platform-level testing. HP Smart Memory also ensures you are getting genuine HP Qualified Memory.