: Features self-designed PHYs and integrated CC logic for USB Type-C applications.
Last updated: October 2025 – ASMedia is rumored to be working on a final “2409xx” branch before EOL.
The is a high-performance second-generation bridge chip from ASMedia that enables 20Gbps data transfer speeds by bridging PCIe Gen3 x4 to USB 3.2 Gen 2x2. Keeping your ASM2364 firmware updated is critical for ensuring broad compatibility with NVMe SSDs, maintaining stable 20Gbps throughput, and enabling modern features like TRIM. Core Specifications and Benefits asm2364 firmware
| Feature | ASM2364 (20Gbps) | ASM2362 (10Gbps) | Intel JHL7440 (Thunderbolt 3) | | :--- | :--- | :--- | :--- | | | 1,900 MB/s | 1,050 MB/s | 2,800 MB/s | | Cost | $30-$50 | $15-$25 | $80+ | | Firmware maturity | High (v2.0.6 stable) | Perfect | N/A (Apple proprietary) | | TRIM support | Yes | Yes | Yes | | PCIe Lane width | Gen 3 x4 | Gen 3 x2 | Gen 3 x4 |
. Updating this firmware is often necessary to resolve hardware compatibility issues, such as drives failing to format, or to improve features like support and power management. Core Functionality & Specifications : Features self-designed PHYs and integrated CC logic
The ASM2364 remains the best bridge chip for USB-C external SSDs in 2025. However, a stock enclosure fresh from the factory often ships with firmware that is six months to a year old. By taking 5 minutes to update to , you unlock stable 20Gbps performance, lower idle temperatures, and eliminate the "phantom disconnect" issues that plague cheaper chips.
ASMedia provides a utility known as (Mass Production Tool) to its OEM partners (the factories that make the enclosures). This tool is not intended for end-users. It is a complex, industrial-grade software used to flash the firmware during the manufacturing process. Keeping your ASM2364 firmware updated is critical for
Firmware updates for ASM2364 controllers are typically performed on Windows systems using specialized utility software. Primary Tool : The standard utility is the ASMedia MPTool (Mass Production Tool). Unlock Requirement