- Silicon Exercise SM2324 9mm Chip forces External SSDs with up to 32 TB and
- It promises real USB4 speeds of 4,000 MB/s
- This chip supports Apple Pro Workflows built for filmmakers and backup -warriors and supports Apple Pro workflows
Silicon Motion has revealed a potentially transformative piece of storage technology on Computex 2025: SM2324, a single-chip USB4 SSD controller aimed at turning on external drives up to 32 TB storage and reading speeds of 4,000 MB/s.
The company says the SM2324 combines built -in USB4 support with an integrated power supply controller, which means fewer parts, reduced costs for OEMs and more compact SSD enclosure.
This could in theory initiate a new class of Ultrahøj capacity portable drives-self-affordable prices and accessibility are still big questions.
A compact controller built to scale and use of platform
Unlike Multi -Chip -Design, it is built to simplify production without compromising the performance, thanks to sequential writing speeds that can reach 3,809MB/s -assuming cooling is sufficient.
It also offers full support for 3D TLC and QLC NAND, as well as compatibility with power supply 3.1 and is built using TSMCS 12NM node with low power to keep power requirements reasonable.
With support for up to 32 TB and compatibility with Windows, MacOS, Linux and even Apple Prores work processes on iPhones, the controller is clearly aimed at a wide market -all from mobile filmmakers to company’s backup users.
Whether it ends up in the drives competing for the best portable hard drive or best SSD status depends not only on its specifications but on how it is implemented.
There are still warnings. While single-chip simplicity lowers boom costs, there is no promise that 32TB USB4 SSDs based on SM2324 will be priced for mainstream users.
NAND prices, thermal control requirements and limitations of power supplies could all push the final product into specialized territory.
So while it can eventually sit next to the best external SSD options in performance, it may not be able to do it in price.
This device comes with security features that include support for AES 128/256-bit encryption, hardware SHA-384, a TRNG and full TCG OPAL 2.0 compliance.
There is even optional support for fingerprint -based approval, although integration details are vague.
It also integrates Silicon Motion’s Nandxtend LDPC ECC engine, which improves endurance and reliability for both TLC and QLC memory.
In terms of design, the chip is compact, only 9 mm with 9 mm, and includes an aluminum heat spreader, making it viable for slim external enclosure.
“At Silicon Motion, we focus on providing SSD controller solutions that lead in both performance and power efficiency,” said Nelson Duann, Senior VP for client and car storage business at Silicon Motion.
“… SM2324 redefines portable storage with a fully integrated single-chip USB4 solution. These technologies reflect our commitment to help customers build faster, less and more efficient SSDs for next generation applications.”



