High Quality 5 Years Warranty. If you are not sure, please ask us before putting an order. Features Power Supply: VDD=1.35V (1.283V to 1.45V). VDDQ = 1.35V (1.283V to 1.45V) Backward Compatible with 1.5V. DDR3 Memory module 8 internal banks. Data transfer rates: PC3-12800. Speed: 1600 11-11-11