Amazon.com: JJC Huawei Nano Memory NM Card Reader Writer, USB 3.0 USB-C Type-C to NM Nano Memory SD MicroSD Card, Data Transfer Speed up to 90MB/S for Huawei Smartphone and Laptop :
Amazon.com: Enhanced Version NM MEMORY Card 128GB 90MB/S Nano Memory Card Nano Card only Suitable for Huawei P30/P30pro/P40/P50 series/Mate20 Series/Mate30 Series/Mate40/honor30pro magic 3/ Series Nano 128GB Card : Electronics
Amazon.com: JJC Huawei Nano Memory NM Card Reader Writer, USB 3.0 USB-C Type-C to NM Nano Memory SD MicroSD Card, Data Transfer Speed up to 90MB/S for Huawei Smartphone and Laptop :
Amazon.com: Enhanced Version NM MEMORY Card 128GB 90MB/S Nano Memory Card Nano Card only Suitable for Huawei P30/P30pro/P40/P50 series/Mate20 Series/Mate30 Series/Mate40/honor30pro magic 3/ Series Nano 128GB Card : Electronics
EveryMarket
Huawei's NM cards try to shrink down the micro-SD for some reason
Huawei Nano Memory Card 128GB/256GB/NM Flash Card/NM/Micro/SD USB Flash Memory Card Lexar Card Reader 20X Pro P30 P40 Pro series - AliExpress
UPDATED] NM Card - Here's What You Need To Know | Nasi Lemak Tech
Amazon.com: JJC USB 3.0 Huawei NM Nano Memory Card Reader Writer, USB-C 3.0 NM to SD MicroSD/TF Card, Data Transfer Speed up to 90MB/S for Huawei P50 Pocket P40 P30 Pro Nova
Amazon.com: JJC Huawei Nano Memory NM Card Reader Writer, USB 3.0 USB-C Type-C to NM Nano Memory SD MicroSD Card, Data Transfer Speed up to 90MB/S for Huawei Smartphone and Laptop :
Original Lexar nCARD Micro SD Card 128GB 256GB Nano Memory Card High Speed NM Card for HUAWEI Mobile Phone MatePad Honor Pocket - AliExpress