... compatible 3. 5 years wrantty 4. Professional DDR Memory / SDRAM / RAM 256 mhz/ ddr 533 mhzDDR1,DDR2,DDR3Desktop Computer,laptop computer128MB/256MB ... /2G/4G 1) DDR 400/333 & DDRII 533/667/800 & DDRIII 1066/1333 MHz2) 168/184/240-pin socket type dual in ... V (SSTL-2 compatible) I/O for DDR I products, 1.8Vpower supply for DDR II products 6) Double-data-rate architecture ...