Pulled from a working environment, a few marks and scratches on outer casing, nothing deep, performance is unimpaired. Interfaces1X Management-Rs-232-9 Pin D-Sub (DB9), 24 X Network-10base-100base-1000base-T-R&J Enterprises-45 Power SourceAC 120/230V (50/60Hz) Networking TypeSwitch Ports Quantity24 Connectivity TechnologyWired Routing ProtocolIgmp, Igmpv2 Power SupplyPower Supply, Power Supply-Internal Data Transfer Rate1Gbps Remote Management ProtocolSnmp, Http, Rmon Form FactorExternal MAC Address Table Size16k Entries MAX Operating Temperature104 ˚F TypeSwitch Managed Stackable, Switch Managed Switching ProtocolEthernet OTHER FeaturesFlow control, layer 2 switching, auto-sensing per device, DHCP support, MDI/MDI-X switch, auto-negotiation, VLAN support, port mirroring, manageable, store and forward, Layer 2 Switching, Dhcp Support, Auto-Negotiation, Manageable, Layer 2 switching, auto-sensing per device, DHCP support, auto-negotiation, trunking, VLAN support, port mirroring, manageable CompatibilityPC Humidity Range Operating (Range)10-95% Status IndicatorsPort Status, Power, Test Mode Min Operating Temperature32 ˚F Enclosure TypeExternal-1U