Maintain switch availability with a 589 W redundant power supply designed for D-Link PoE deployments. The DPS-700 supports 1+1 power architecture for compatible DGS-3120 and DGS-3620 models, giving infrastructure teams a cleaner path to uptime protection and maintenance flexibility. In access and aggregation layers, power redundancy is not a luxury. It is what keeps phones, cameras, wireless access points, and downstream services online when a supply fails or a maintenance window opens. This unit is built for that reality, providing the extra layer of continuity that standard power supplies cannot. For teams managing distributed networks, the value is in reducing operational risk. A redundant supply helps preserve service during component failure, simplifies spare planning, and supports the kind of availability expectations that enterprise switching environments demand. When the network is carrying voice, video, and PoE loads, the power subsystem has to be as dependable as the switch itself.