PNY XLR8 8GB (2 x 4GB) DDR3 1600MHz (PC3 12800) 1.35V Low Voltage CAS CL 11 Notebook Memory Module Kit - MN8192KD3-1600-LV Boasts High Speed of 1600MHz for quicker software application launches on notebook PC Low voltage Channel: Dual Latency: CAS 11 Speed: 1600 MHz Type: DDR3 Desktop Pin Out: 204 Lifetime Warranty & Free 24-7 Technical Support