Dual Interface Apacer AH179 USB 3.1 & Micro-B Gen 1 Type-A / Flash Drive 64GB The SuperSpeed dual-interface USB flash drive AH179 features USB 3.1 Gen 1 on one end and Micro USB on the other. With its USB 3.1 Gen 1 capability and its incredible 5Gbps speed, the AH179 is the ideal solution for file transfers between PCs and OTG-e.