Dear customer, When there might be a difference between the automatic generated specifications by the Ebay system, and the hand written/typed description, then please be aware that the only correct description is what's written by our selves here in the description. Specifications above might be slightly different. Thanks for your understanding. Product Name | N2048 Switch | Product Type | Ethernet Switch | Manageable | Yes | Ethernet Technology | Gigabit Ethernet 10 Gigabit Ethernet | Product Family | N2000 | Stack Port | Yes | Media Type Supported | Twisted Pair | Total Number of Network Ports | 48 | PoE (RJ-45) Port | No | Form Factor | Rack-mountable | Network Technology | 10/100/1000Base-T 10GBase-X | Green Compliant | Yes | Green Compliance Certificate/Authority | REACH EU WEEE RoHS | Compatible Rack Unit | 1U | Number of Total Expansion Slots | 2 | Number of Network (RJ-45) Ports | 48 | Port/Expansion Slot Details | 48 x Gigabit Ethernet Network 2 x 10 Gigabit Ethernet Expansion Slot | Height | 1.7" | Width | 17.3" | Depth | 10.1" | Expansion Slot Type | SFP+ | Product Series | N2000 | Product Model | N2048 | Input Voltage | 120 V AC 230 V AC | Layer Supported | 2 | Token Ring Port | No | LRE Port | No | Redundant Power Supply | No | USB | Yes | Number of SFP+ Slots | 2 | Management Port | Yes | Number of Stack Ports | 2 | Bypass | No | Shared SFP Slot | No | If something is not on the picture it's not included unless stated otherwise. |