Hi there @jeffbrl and thanks for reaching out via our forums. The PEXESATA1 does not have ESXi support, and only supports LTS Linux kernels between Linux 2.6.x and 4.4.x.
Supported LTS Linux kernels: 2.6.16, 2.6.27, 2.6.32, 2.6.33, 2.6.34, 2.6.35, 3.0, 3.2, 3.4, 3.10, 3.12, 3.14, 3.16, 3.18, 4.1, and 4.4.
Please note, that you can check for supported Operating Systems via our technical specifications page for the product: 1 Port PCI Express eSATA Controller Card - SATA Controller Cards | Add-on Cards & Peripherals | StarTech.com
As you can see, ESXi is not listed and thus is unsupported. For ESXi-supported products, we will list ESXi support here. You may also notice that more modern operating systems like Windows 10 and 11 and newer Windows Server and Linux kernel versions are not listed. This is because the PEXESATA1 is EOL (End-of-life) and was EOL’d before those operating systems existed. As such, testing for newer operating systems was not done.
While Debian 12 uses Linux Kernel 6.1 which is LTS, this is newer than we have tested due to the product’s EOL status and thus it’s unsupported. The PEXESATA1 uses a Silicon Image - SiI3531 chip, so you may be able to find 3rd-party drivers out there for it, but these are not supported nor endorsed by StarTech.com.
Hopefully, this addresses what you are seeing/experiencing. Let us know if you have any further questions or concerns.
Justin Weaver (He/Him)
Technical Lead, Customer Support Operations