How to Choose Type-C USB Flash Drive Card(USB A and USB C)?

What is a mobile Type-C card-style USB Flash Drive Card?​​

A mobile Type-C card-style U disk is a portable storage device designed to resemble a credit card, with a thickness of just 1.22mm and a weight of approximately 18.28 grams (note: original text mentions 1828 grams, which may be a typo). It features a Type-C interface for direct connection to Android phones, tablets, or computers for data transfer. It is also compatible with USB-A interfaces, and some models include a Lightning adapter for iOS devices. Constructed from metal or ABS material, these U disks are waterproof, shockproof, and support OTG functionality, eliminating the need for a computer to expand mobile storage.

What interfaces does a mobile Type-C card-style USB Card offer?​

The mainstream design includes dual Type-C + USB-A interfaces to meet direct connection needs for phones and computers. High-end models support USB 3.0/3.2 standards, achieving transfer speeds up to 400MB/s.

• ​Primary interface: Type-C (direct phone connection).
• ​Extended interfaces​ (varies by model):
• USB-A (for traditional computers, external drives, etc.).
• Lightning (compatible with iPhone/iPad).

• OTG function: Connect multiple devices via cables (e.g., U disk → phone → other OTG devices).

​Dimensions and specifications​

• Size: Credit-card sized, such as 85×54×1.9mm, 65×16.5×10mm, or 67×17×10mm. Slimmer models reach 50×18×8mm.
• ​Capacity: Ranges from 8GB to 1TB, commonly 32GB, 64GB, or 128GB.
• ​Transfer speed: USB 2.0 models reach ~1035MB/s; USB 3.0/3.2 models achieve up to 150,400MB/s (note: likely a typo, as USB 3.2 Gen 2×2 maxes at ~2,500MB/s). High-end models may support 1000MB/s.
• ​Compatibility: Supports exFAT, NTFS, FAT32 (requires phone OS compatibility).
• ​Material: Metal or ABS plastic, with some models offering waterproof/shockproof features.
• ​Additional functions: Hardware/software encryption available on select models.

​Can logos be customized?​​

Yes, most manufacturers offer customization services:

​How to use the U disk?​​

​Summary​

The Type-C card-style mobile usb flash drive combines credit-card slimness (as thin as 1.22mm) with multi-interface versatility (Type-C + USB-A/Lightning), serving as a portable cross-platform storage solution. It supports direct Android/iOS connectivity, computer compatibility via OTG, and high-speed USB 3.0/3.2 models (up to 400MB/s). Built with durable metal/ABS materials and water/shock resistance, it excels in outdoor and business scenarios. Customization options (laser engraving/UV printing) cater to branding or personalization needs. Whether for expanding phone storage, file backups, or multi-device collaboration, this U disk delivers plug-and-play convenience, secure ejection, and unmatched flexibility, redefining mobile storage innovation.