M4300-28G-PoE+ with 1,000W PSU: The M4300-28G-PoE+ provides 24 Gigabit PoE+ ports with 2 10GBASE-T and 2 10GBASE-X SFP+ uplink connectivity, All (4) 10G ports are independent and 1G backward compatible for progressive transition to 10G speeds, At 110V, hot swap APS1000W power supplies deliver 630W redundant PoE+ budget across 24 ports, or 720W in share mode, At 220V, hot swap L3/L4 and IPv4/IPv6 rich services for wireless access layer, IP video and unified communications, Virtual Chassis stacking provides non-stop forwarding (NSF) and hitless failover for highest availability (HA), 1 Gigabit models such as M4300-28G-PoE+ can stack with 10 Gigabit models enabling line-rate spine and leaf topologies, Layer 3 feature set includes static, policy-based and dynamic routing with RIP, VRRP, OSPF and PIM, Ready for the future, with Software-defined Network (SDN) and OpenFlow 1.3 support, Lifetime hardware warranty, Lifetime NBD and Lifetime online technical chat for investment protection and post-sales support.