It's AWS Outposts Rack without the AWS connection. That is, you get a turnkey rack with the servers, networking, hypervisor, and support software preconfigured. You plug it into power and network and it's ready to run your VMs.
Outposts, too, started with a full-rack configuration only, but they eventually introduced an individual server configuration as well. It'll be interesting to see if Oxide eventually decides to serve the smaller market that doesn't have the scale for whole-rack-at-a-time.
The traditional enterprise option is to call up Dell and order a pre-validated VMware cluster. This will be a specific configuration of Dell hardware and VMware software that has been tested together, although it was not developed together.
Outposts, too, started with a full-rack configuration only, but they eventually introduced an individual server configuration as well. It'll be interesting to see if Oxide eventually decides to serve the smaller market that doesn't have the scale for whole-rack-at-a-time.