Powmem is the product of a memory module maker/computer parts distributor named Wintec. They have branches in Fremont, CA, and recently opened one in Atlanta. They make good ram, I have used thousands upon thousands of their sticks. In the SDR days it was as good as you could get, but is manufactured with all chips. I used the Siemens (later re-named to Infineon) chips with great success for years. I prefer them to all SDR SDRAM chips, and to be honest the NECs are the most problematic. Your likelyhood of problems is great with this ram, because of the NEC chips rather than who made the module. But in the end you never know a given stick will work in a given machine until you try it.