The Reolink RLN16-410 (4TB HDD) is a 16-channel NVR that comes with a 4TB hard drive. It is an excellent choice for those who want to replace their current NVR or build their own surveillance system. With 16 channels, it can support up to 16 cameras, making it perfect for larger homes or small businesses. The 4TB hard drive provides ample storage space for video footage, ensuring that you never miss a moment. Its easy-to-use interface and reliable performance make it an excellent choice for anyone looking to enhance their home or business security.