The NEW Spectrum Modem ET2251 D3.1 2.5G eMTA is a black modem. It is a DOCSIS 3.1 standard modem, ensuring fast and reliable internet connectivity. The modem is sealed, providing protection against dust and water damage to maintain optimal performance. With its model number ET2251, this modem is a reliable choice for those looking to upgrade their home networking setup with a trusted and well-known brand.