This product is either discontinued or we cannot get that from suppliers.
Dahua DHI-NVR4216-16P-4KS2-3TB, 16 Channels, Bit 16Kbps ~ 20Mbps Per Channel, Interface 1 RJ-45 Port (10/100/1000Mbps), 1 Independent 1000Mbps Ethernet Port, PoE 16 ports (IEEE802.3at/af), HDD Single, 2 ports(1 USB2.0, 1 USB3.0), Power AC100V ~ 240V, 50 ~ 60 Hz.
Dahua 16ch H.265+ NVR Record Up to 8MP, 200Mbps input, 16 Port PoE, 2 x HDD space up to 10TB each HDD, 1x HDMI(4K)/VGA, Smart 2.0, P2P, Surveillance HDD-3TB installed.