RG-NBS3100-48GT4SFP-P RG-NBS3100-48GT4SFP-P 52-Port Gigabit Layer 2 Cloud Managed PoE Switch - 52-Port gigabit Layer 2 managed PoE switch, 4 SFP uplink - Enterprise-class Quality Ensures High Performance - IP Camera Recognition, Unique Value for CCTV Network - Multiple Security Policies Protect Your Network - Lifetime management on Ruijie Cloud at anytime anywhere Multiple Security Policies Protect Your Network Cloud, Make Your Business Easy