PNY Performance 8GB DDR3 1600MHz CL11 Notebook (SODIMM) Memory MN8GSD31600 Memory Type: DDR3 PC Type: Notebook Frequency Speed (JEDEC): 1600MHz (PC3-12800) Latency (CAS): CL11 Voltage: 1.5V XMP Support: No Speed Compatibility: Compatible with 1600MHz, 1333MHz, 1066MHz Warranty: Lifetime Warranty