In today’s digital landscape, the demand for fast, reliable and versatile data storage solutions is higher than ever. Introducing Phison U21, a cutting-edge NAND flash controller designed to power external portable storage drives on the 40 Gbps USB4 interface. Whether you’re a tech enthusiast, creative professional or amateur with a call phone looking to capture life’s greatest memories, U21 promises to deliver an unparalleled storage experience.

Why Phison U21?

E31T IconSpeed

Unparalleled Performance

Experience lightning-fast data transfer speeds with the U21, capable of sequential read and write speeds up to 4000 MB/s. Whether you’re transferring large files, editing high-resolution videos or backing up your data, the U21 keeps you ahead of the game.

E31T IconPower

Exceptional Power Efficiency

The U21 is engineered for ultra-low power consumption, making it ideal for portable use. With no need for a bulky, power-hungry bridge chip, the U21 offers extended battery life for your devices, so you stay productive on the go.

E31T IconCompact

Compact Size and Versatility

Designed with a compact form factor, the U21 supports up to 32 TB of storage, making it perfect for external drives and even innovative applications like phone cases with built-in data storage. The design without bridge board allows for seamless integration into various devices, fitting into any space with no additional cooling needed.

E31T IconFuture

Future-Ready Technology

With support for the fastest USB4 available today and backwards support to USB 2.0, the U21 offers the widest range of device compatibility so your device, your data, your life’s memories stay relevant today and long into the future.

Key Features:

  • Sequential read/write speeds: Up to 4000 MB/s
  • Storage capacity: Supports up to 32 TB
  • Interface: USB4 (40 Gbps), USB 3.2 Gen2x2 (20 Gbps), USB 3.2
    Gen2x1 (10 Gbps), USB 3.2 Gen1 (5 Gbps), USB 2.0 (480 Mbps)
  • Flash controller: Supports TLC and QLC flash memory, up to 4
    channels/16 chip enables (CEs) within a single design.
U21 Product_Image_1

Key Benefits:

  • High-speed data transfer: Experience the fastest data transfer speeds on the market
  • Low power consumption: Enjoy extended battery life and efficient power usage
  • Compact and versatile design: Fits seamlessly into any device, from notebooks to phone cases
  • Future-ready: Stay ahead with the latest technology, ensuring long-term relevance and compatibility
  • Wide compatibility: Backward-compatible with all existing USB standards

Choose Phison U21 and redefine
your storage experience.

Embrace the future of data
management to be one step ahead.