If you are a Cisco UCS customer and want to experiment with configurations but don’t want to mess up your production environment, Cisco offers the free UCS Platform Emulator VM. They regularly update the emulator, and their most current version is v2.0.94849.368934. You can download the emulator here. You can quickly import the VM into VMware Workstation with just a few clicks. Unfortunately there’s no release notes for this build, so we don’t know what changed from the prior release. The emulator still does not support the new B200 M3 blades, unfortunately.
Note: It appears creating a keyring and importing a trusted root certificate is broken in this release. It will not calculate the fingerprint of the certificate and you cannot create a certificate request.