The Lenovo ThinkSystem NE2572 RackSwitch is designed for the data center and provides 10 Gb/25 Gb Ethernet connectivity with 40 Gb/100 Gb Ethernet upstream links. It is ideal for big data, cloud, and enterprise workload solutions. It is an enterprise class Layer 2 and Layer 3 full featured switch that delivers line-rate, high-bandwidth switching, filtering, and traffic queuing without delaying data. Large data center-grade buffers help keep traffic moving, while the hot-swap redundant power supplies and fans (along with numerous high-availability software features) help provide high availability for business sensitive traffic.
The NE2572 RackSwitch has 48x SFP28/SFP+ ports that support 10 GbE SFP+ and 25 GbE SFP28 optical transceivers, active optical cables (AOCs), and direct attach copper (DAC) cables. The switch also offers 6x QSFP28/QSFP+ ports that support 40 GbE QSFP+ and 100 GbE QSFP28 optical transceivers, active optical cables (AOCs), and direct attach copper (DAC) cables. The QSFP28/QSFP+ ports can also be split out into four 10 GbE (for 40 GbE QSFP+) or 25 GbE (for 100 GbE QSFP28) connections by using breakout cables.
The NE2572 RackSwitch is ideal for latency sensitive applications, such as high-performance computing clusters and financial applications.  
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             | Transource eSKU | 1041429602 | 
     | Manufacturer | Lenovo Group Limited | 
     | Manufacturer Part Number | 7159E1X | 
     | Manufacturer Website Address | http://www.lenovo.com/us/en/ | 
     | Brand Name | Lenovo | 
     | Product Model | NE2572 | 
     | Product Name | ThinkSystem NE2572 RackSwitch (Rear to Front) | 
     | Packaged Quantity | 1 | 
     | Product Type | Layer 3 Switch | 
       
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             | Interfaces/Ports | 
     | Uplink Port | Yes | 
     | Modular | Yes | 
     | Port/Expansion Slot Details | 48 x 25 Gigabit Ethernet Expansion Slot | 
     | Port/Expansion Slot Details | 6 x 100 Gigabit Ethernet Expansion Slot | 
     | Media & Performance | 
     | Media Type Supported | Optical Fiber | 
     | Ethernet Technology | 25 Gigabit Ethernet | 
     | Ethernet Technology | 100 Gigabit Ethernet | 
     | Network Technology | 25GBase-X | 
     | Network Technology | 100GBase-X | 
     | I/O Expansions | 
     | Number of Total Expansion Slots | 54 | 
     | Expansion Slot Type | SFP28 | 
     | Expansion Slot Type | SFP+ | 
     | Expansion Slot Type | QSFP28 | 
     | Expansion Slot Type | QSFP+ | 
     | Number of SFP+ Slots | 48 | 
     | Network & Communication | 
     | Layer Supported | 3 | 
     | Management & Protocols | 
     | Manageable | Yes | 
     | Power Description | 
     | Input Voltage | 110 V AC | 
     | Input Voltage | 220 V AC | 
     | Power Source | Power Supply | 
     | Redundant Power Supply Supported | Yes | 
     | Power Consumption | 213 W | 
     | Physical Characteristics | 
     | Compatible Rack Unit | 1U | 
     | Form Factor | Rack-mountable | 
     | Height | 1.7" | 
     | Width | 17.4" | 
     | Depth | 19.2" | 
     | Weight (Approximate) | 25.13 lb | 
     | Miscellaneous | 
     | Package Contents |  - ThinkSystem NE2572 RackSwitch (Rear to Front)
  - 2 x Power Supplies
  - 6 x Fan Assemblies (Rear-to-Front Airflow or Front-to-Rear Airflow)
  - Generic Rack Mount Kit (2-post)
  - Db-9 (Plug) to Rj-45 (Plug) Serial Console Cable
  - Micro-Usb Type A (Plug) to Usb Type A (Jack) Data Cable
  - Electronic Publications Flyer
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     | Environmentally Friendly | Yes | 
     | Environmental Certification | RoHS | 
     | Environmental Certification | TÜV-GS | 
     | Warranty | 
     | Limited Warranty | 3 Year |