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ASM2464 USB4 M.2 expansion board

ASM2464 USB4 M.2 expansion board

Regular price $69.00 USD
Regular price $99.00 USD Sale price $69.00 USD
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Introducing the ASM2464 USB4 M.2 expansion board.

This expansion board is based on ASMedia's ASM2464PD design and is mainly used to convert USB4 or Thunderbolt 3/4 to standard PCIe/NVMe.

ASM2464PD, is a new generation of USB4 ®/Thunderbolt to PCIe/NVMe Accessory controller based on ASMedia in-house designed PHYs. USB4/Thunderbolt technology enables PCIe and USB protocols to be encapsulated into the USB4/Thunderbolt fabric and tunneled across USB4/Thunderbolt domains. ASM2464PD can be implemented in various types of storage devices such as portable SSD, SSD enclosure, and any other PCIe based storage products that can be used to expand storage capacity with high-speed data transfers.

The ASM2464PD USB connection is able to provide data rate at a speed of USB4/Thunderbolt 20Gbps x2 and is compatible with existing legacy USB 3.2 interfaces, as well as Thunderbolt 3. In addition, the downstream port link of ASM2464PD is also upgraded to PCIe Gen4 x4 to support various NVM Express based M.2.

Key Features:

  1. 40Gbps Speed: This expansion board transforms your M.2 NVMe SSD into a compact and portable mobile hard drive. It features a USB4.0 Type-C output interface, supporting a maximum transmission speed of up to 40Gbps. Equipped with the latest ASM2464 chip, it is compatible with Thunderbolt3/4 and supports PCIe and USB Dual Tunnels.
  2. Multiple Transmission Protocols: The board is compatible with multiple transmission protocols and interfaces, ensuring broad adaptability. It supports USB 4 / Thunderbolt 3 / Thunderbolt 4 with a maximum transmission rate of 40Gbps. Due to protocol conversion losses, the theoretical maximum read speed is 3200Mb/s, and the theoretical maximum write speed is 2700Mb/s. In the USB 3.2 Gen 2X2 20G protocol, the maximum speed reaches 20Gbps, while in the USB 3.2 Gen 2 protocol, max 10G.
  3. Wide Compatibility: The board compatible with M.2 PCIe3.0x4 NVMe M Key,NVMe B+M Key in sizes 2280/2260/2242/2230 up to 4TB, NOT compatible with M.2 SATA SSDs, M.2 PCIe AHCI SSDs, M.2 PCIe devices. Supports system multi OS, Windows, Mac OS, Linux, Android.
  4. PCIe 4.0 x4 Protocol: Harness the power of PCIe 4.0 x4 protocol compatibility, ensuring high-speed data transfer rates and optimal performance for your PCIe devices, delivering a seamless user experience.Use the M.2 adapter board to transfer the standard PCIE
    x4 slot for connecting standard pcie devices such as graphics cards, network cards, etc.
  5. USB4 Cable:40Gbps Short USB 4 Cable 30cm, 8K Video, 240W Charging, USB4 Cable/USB C Display Cable PD 3.1, Compatible with Thunderbolt 3/4
  6. M.2 M-Key 2280 to PCI-E:Included M.2 PCIe adapter board for easy connection to standard pcie devices



  1. ASM2464PD USB4 M.2 expansion board
  2. 30cm USB4 Cable
  3. M.2 M-Key 2280 to PCI-E x4 expansion board(No power adapter)


  • 3.5x1.5inch
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