Grandstream GWN7831 Enterprise Layer 3 Managed Aggregation Switch, 20 x SFP, 4 x SFP/GigE Combo, 4 x SFP+, Redundant PSU
The GWN7830 series are Layer 3 aggregation switches that allow enterprises to build scalable, secure, high-performance, and smart business networks that are fully manageable and support maximum capacity.
* 2/4 Gigabit Ethernet ports, 6/24 Gigabit SFP ports, and  4/12 10Gigabit SFP+ ports
* Supports deployment in IPv6 and IPv4 networks
* ARP Inspection, IP Source Guard, DoS protection, port security & DHCP snooping
* Embedded controller to manage switch; GWN.Cloud and GWN Manager, Grandstream’s cloud and on-premise network management platform
* Built-in QoS allows for prioritization of network traffic