SD138 DDR4 SODIMM 2666MHz High speed up to 2666MHz Energy efficient: saves 20% power compared to DDR3 High-quality PCB provides improved signal transfer and system stability Module: 260-pin SODIMM Power supply: VDD and VDDQ=1.2V +0.06/-0.06V DRAM activation power supply: VPP = 2.5V (2.375V min 2.75V max) DRAM VCC: DDR4 STD 1.2V Dimensions (L x W x H): 69.6 x 30 x 1.20mm Weight: 8g Warranty: limited lifetime