CAPACITY 4GB STANDARD PC3-12800 SINGLE MODULE OR DUAL KIT Single memory module MEMORY SPEED 1600MHz (DDR3-1600) CAS LATENCY CL11 MEMORY TIMINGS 11-11-11 VOLTAGE 1.5V ERROR CHECKING Non-ECC REGISTERED Unbuffered TECHNOLOGY 240-pin DDR3 SDRAM memory module CONFIGURATION 512Mx8 chip configuration, 512Mx64 module configuration