This is probably connecting as a PCIe device, and we currently do not suport hotplug PCIe on USB-C. It will likely work for you if connected when you boot, but will not work after disconnecting and reconnecting.
But, to rule that out, can you boot, connect the drive, and send a dmesg? -peter On 2025 Sep 04 (Thu) at 13:46:39 +0200 (+0200), Fox Steward wrote: :Hi there, : :the following hardware is not recognized by OpenBSD 7.7, :using a Lenovo Thinkpad Carbon X1 6th Gen, neither on usb-c or usb-a port. : :- external enclosure for M.2 NVMe SSD: Delock USB 3.2 Gen 2 (42600), Chipset: JMicron JMS583 [1] :- with Crucial P3 Plus 2TB PCIe 4.0 NVMe M.2 SSD : :Device works fine with none OpenBSD devices (e.g. LineageOS Smartphone). : :Could someone explain why this is the case? : :Is there another eclosure that is known to work with this M.2 SSD? : :Thank you kindly, : :Fox Steward : : :[1] https://www.delock.de/produkt/42600/merkmale.html?setLanguage=en : -- ... Logically incoherent, semantically incomprehensible, and legally ... impeccable!

