Adata quietly rolls out the smallest USB 4 external SSD to date, and its fastest portable SSD ever

Offers up to 40Gbps transfer speed and 8TB capacity

· TechRadar

News By Efosa Udinmwen published 11 January 2025

(Image credit: Adata)


  • The SE940 is Adata's first USB 4 portable SSD
  • It reaches up to 4GBps on read/write
  • Expect far more USB 4 external SSDs to launch in 2025

At CES 2025, Adata introduced a range of new storage products, including the Adata XPG SE940, a portable SSD which marks the first time Adata is using USB 4 technology.

Adata is also tipping the SE940 as the smallest USB 4 external SSD to be commercially available.

It can reach speeds of up to 4,000 MB/s for reading and writing data. This makes it not only the fastest portable SSD in Adata’s line-up but also a contender in the broader external storage market.

New benchmark for portable SSD performance

The SE940 uses a modern single-chip controller from Silicon Motion, which gives stable performance, uses power efficiently, and works smoothly.

It also has a built-in fingerprint reader, and comes with storage options of up to 8 TB, providing plenty of space for big files, multimedia work, or backups.

Adata also announced several other SSDs at CES. The XPG MARS 970 Storm and Blade are Gen 5 M.2 NVMe SSDs (up to 8TB) that offer up to 14 GB/s read and 12 GB/s write speeds.

The company also announced the SR800 and SR820, portable SSDs that offer up to 20GB speeds, USB 3.2 Gen 2 and up to 4TB capacity.

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