ADVANCESTACKETHERTWISTDMM-2RJ45CONN - 2RJ45 CONNECTIONS - Replacement AdvanceStack Distributed Management Module (DMM) - Has One 9 Pin RS-232 Connector (Console Port) - Plugs into the Management Module Slot on Rear of Hub. 

*Refurbished items come with 90-day parts and labor warranty.  

* F.O.B. Austin, Texas.  

*Used HP Servers & Refurbished HP Networking products are fully refurbished by HP certified technicians at 360 Technologies, Austin, Texas.