Specifications: BrandUGreenModelCM521ColorSliverDimension80*70*20mmMaterialPremium alloyConnectorUSB-CInterface3*USB 3.01*TF1*SDNet Weight100gWire length150mm Features: 1.Dual card transmissionTF/SD dual card slot, solve the problem of no card slot in laptop2.Fast and not waitingUSB3.0 interface, t..