Huawei's Nano Memory Cards are identical in size and shape to a Nano SIM card and are proprietary to Huawei Mobile devices This card reader features
Huawei Universal Nano 128 GB Memory Card
Huawei 64G NM Memory Card Nano 90MBs for P30 Pro/Mate20/Mate20 Pro/Mate20 X
Genuine 100% Original Huawei 64GB NM Nano Card For Mate 20 X/Mate 20 Pro/P30 Pro
Huawei Universal Nano 128 GB Memory Card
cablecc USB-C Type C/USB 2.0 to NM Nano Memory Card & TF Micro Card Reader for Huawei Cell Phone & Laptop : Electronics
YAOMAISI Enhanced Version NM Card 128GB 90MB/s Nano Memory Card Nano Card Only Suitable for Huawei P30/P30pro/P40 series/Mate20 Series/Ma
What is Huawei Nano-Memory Card?
What is Nano Memory and where is it headed? - Android Authority