48-port Cat5 Communication Circuit Accessory E136760 5L36 
Ethernet Rack Mount 110 Type 568A/B compatible 
19" x 3.5" Comes with some cables see back picture and one ethernet cable and 4 mounting screws
This professional UL listed cat5e network patch panel adds 48 ethernet ports in a 2U form factor to your equipment rack.
The panel is constructed of steel and fits into a standard 19 inch wide equipment rack with 2U (3.5 inch) height. 

The 48 cat5e ethernet jacks are numbered and are designed for use with a 110 type punch-down tool. 
The jacks can be wired for the TIA-568A or B standards and a color-coded wiring diagram is included on the back of the panel. 
Each port can be labeled using the white label space provided on the front of the panel.