HP 1920-16G JG923A, 16port Gigabit Ethernet Switch, 16x RJ45 4x SFP, Managable Layer 2/3 Switch, MIPS 500MHz Processor, 128MB SDRAM, ARP support, Access Control List (ACL) support, Cable Diagnostics Function, Class of Service (CoS), DHCP client, DHCP relay, IGMP snooping, IPv6 support, Jumbo Frames support, MLD snooping, Multiple Spanning Tree Protocol (MSTP) support, Port Security, Quality of Service (QoS), Rapid Spanning Tree Protocol (RSTP) support, STP Root Guard, Single IP Management (SIM), Spanning Tree Protocol (STP) support, Strict Priority Queuing (SPQ), Syslog support, VLAN support, Weighted Round Robin (WRR) queuing, auto-negotiation, auto-uplink (auto MDI/MDI-X), dual firmware images, flow control, layer 2 switching, port isolation, port mirroring, static routing, desktop, rack-mountable, 13Watt Power Supply