Kingston 4GB 1600MHz 204-Pin CL11 DDR3 SODIMM Non-ECC Unbuffered 1.5V Memory Module Product Specifications Memory Memory Size 4096 MB ( 1 module(s) x 4096 MB ) Memory Type DDR3 Memory Speed 1600 MHz Memory Package SO-DIMM Designation PC3-12800 Pin Configuration 204 pins Bus I/O Configuration Unbuffered Error Correction Non ECC CAS Latency CL11 Electrical Voltage 1.5 V Physical Form Factor Memory Module Case Colour Green