Surface Pro 11 (snapdragon) What 40Gbps NVME Enclosures work?

A F 0 Reputation points
2025-12-30T20:18:50.1033333+00:00

The surface pro 11 snapdragon is advertised as having 2 x 40Gbps USB C ports. I purchased a ASM2464PD 40Gbps NVME enclosure and certified USB cable but it either does not fully recognise or falls back to 10Gbps and freezes up constantly. If I plug the enclosure into a 10Gbps USB C hub attached to the Surface Pro 11, it does work fine at 10Gbps going through the hub. Are there any 40Gbps NVME enclosures that are compatible with the Surface Pro 11 snapdragon?

Surface | Surface Pro | USB-C
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  1. Lychee-Ng 22,935 Reputation points Microsoft External Staff Moderator
    2025-12-31T07:08:07.3566667+00:00

    Hi A F,

    Welcome to Microsoft Q&A!

    I understand how frustrating it is to have a 40Gbps-capable setup fall back to 10Gbps. Surface Pro 11 (Snapdragon X Elite) does support two 40Gbps USB4 ports, but achieving full speed with NVMe enclosures can be challenging because of how Windows on ARM manages tunneling.

    Your ASM2464PD enclosure uses a native USB4 controller, which is designed for high performance. However, it relies on strict firmware compliance and driver support to negotiate 40Gbps. Since the Snapdragon X Elite is a newer platform, the Windows on ARM stack is still evolving, and not yet fully optimized for every third-party bridge chip. If the system detects any firmware or cable compliance issue, it will fall back to 10Gbps (USB 3.2) to prevent data loss, which explains the behaviors you encountered.

    From community feedback and vendor testing, enclosures using Intel Thunderbolt 3/4 controllers (such as JHL7440 or JHL8540) tend to be more reliable on ARM devices. These controllers have mature drivers and better compatibility. Recommended options (not guaranteed) include:

    • OWC Envoy Express
    • Sabrent EC-T3NS
    • Plugable TBT3-NVME2

    If you don't require maximum speeds for your current task, using the 10Gbps hub is a smart temporary workaround while the Windows on ARM ecosystem continues to mature.

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  2. AI answer

    2025-12-30T20:19:01.8233333+00:00

    The context provided does not specify any particular 40Gbps NVMe enclosures that are compatible with the Surface Pro 11 (Snapdragon). It mainly lists tested peripherals, including cables and monitors, but does not include specific information on NVMe enclosures or their compatibility with the Surface Pro 11's USB-C ports.

    Since your enclosure is falling back to 10Gbps and experiencing issues, it might be worth checking for firmware updates for both the enclosure and the Surface Pro 11. Additionally, you could reach out to the manufacturer of the enclosure for compatibility inquiries or look for user reviews that specifically mention the Surface Pro 11.

    References:

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