This article provides steps to download and install async drivers in ESXi.
VMware certifies async drivers that are developed by third-party vendors. They are released in the ESXi software package called a vSphere Installation Bundle (VIB).
Use one of these methods:
Note: For more information about installing a specific async driver release, see the /doc/README.txt file within the async driver release zip file.
Installing async drivers in ESXi using esxcli and offline bundle
Installing async drivers using esxcli and async driver VIB file
Installing async drivers in ESXi using VMware Update Manager
Adding the async driver to the ESXi installation ISO bundle in ESXi