As you know VMware ESX and ESXi softwares create virtual physical servers, so they have no built-in management interface. WHMCS ESX ADDON is a module that integrates with your WHMCS system and allows your clients to make physical processes.
Manage your module licence entirely online from your client panel. Your licence code is sent your email just after an order completion online! Remember, you could be preferred by users who have used ESX module before
Take your time yourself! With an ESX Module which is prepared considering your work time, you could allow your clients to manage their servers online. In comparison with your competitors, it will be the best thing that providing management console to your clients!