?Memory Chip: All DUOMEIQI chips are from big brand manufacturers such as Micron, Hynix, Samsung, Kingston, ELPIDA, Nanya and Qimonda, a high level of reliability. | ?Connecting Finger: Advanced electroplating process is applied on the connecting finger to improve corrosion resistance and electrical conductivity. | ?Multifunction: Increase bandwidth, improve system performance, reduce power consumption and extend battery life. Faster burst access speed for improved sequential data throughput, bring you great online and game experience. | ?WARRANTY SERVICE: Life-time warranty for your confidence purchase. Any problems, please feel free to contact us at email@example.com , we are here for you 24 hours. | ?Due to different production batches, chips from different brands will be used. Meanwhile even the same brand chips, will not be totally same, chips color and parameters maybe some different. Please be assured, all chips have been through strict tests to ensure a high quality.