Another option is through ESX CLI console, using scp.
Procedure looks like this:
1. Enable ESXi console and SSH on both hosts.
2. Shut down VCSA VM
3. Switch to ESX console and log in (Alt+F1)
3.1 Unregister your VCSA:
3.1.1 run: vim-cmd vmsvc/getallvms
3.1.2 run: vim-cmd vmsvc/unregister ###
4. change dir to your datastore (cd /vmfs/volumes/datastore_name)
5. run scp to copy your VCSA to second host (scp -r your-vcsa-folder root@new-host-ip:/vmfs/volumes/new-host-datastore)
6. register VCSA on a new host, either through WEB GUI or by using vim-cmd (vim-cmd solo/registervm path-to-vcsa-vmx-file)