Huawei is a new type of expandable storage device called Huawei
Huawei called Nano Memory (NM) to replace the existing microSD card in newly released Mate 20 and Mate 20 Pro. It is said that the NM card is 45% smaller than the microSD card and has the company's minimum 256GB storage capacity and a 90MB / s transfer rate version, which is the same size and shape as the card.
In Mate 20 and Mate 20 Pro, the NM card goes into one of the slots in the dual SIM tray and the user must select either an extra storage or a second SIM card.
Currently, NM cards show that only Huawei supports storage devices that manufacture memory cards and memory cards. (Remember Sony's Memory Stick?) Since NM cards are expanding to other companies as a new standard for storage devices, especially since dual SIM phones are getting more and more popular to appeal to the international market (even Apple now has a dual SIM iPhone )
But we are still hearing from Huawei about introducing a new industry storage format standard, as well as basic things like the price and availability of the NM card announced today.