The licence is for Windows Server 2025 Essentials, not for Windows Server Standard or Enterprise. This is an HPE-branded Essentials version offered as a Reseller Option Kit (ROK) and is intended for one HPE server. The licence covers 1 CPU with up to 10 cores and is limited to a maximum of 25 users or 50 devices, without the possibility of expansion. The licence is multilingual and intended for use in HPE hardware.