AVEXIR AVD3U16000702G-2GI Blitz 4GB ( 2GB x 2 ) 240-pin DDR3 1600mhz non-ECC desktop memory module AVEXIR AVD3U16000702G-2GI Blitz 4GB ( 2GB x 2 ) 240-pin DDR3 1600mhz non-ECC desktop memory module