... ] 3 month warranty These are a set of 4GB (2 x 2GB) HyperX DDR2-1066 and they run great. I threw ... :Standard 256M X 64 Non-ECC 1066MHz 240-pin Unbuffered DIMM (DDR2, 2.3V, CL5, Gold) (Datasheet)Mfgr's System P/N's:N/AForm ... the item is received. If it is refunded, only item’s listing price is refundable, shipping and required insurance fees are ...