Modular PDUs have unique modular design architecture. This "Building block" concept consists of twomain parts, the Control Unit, and the optional extension bar(s). . The Control Unit is zero-U or 1U rackmountable. Optional extension bars mount directly to the rack-frame.HP EO4505N Power distribution unit (PDU) PN 228481-007 Spare 417587-D71Single input power distribution units with a unique modular design architectureZero-U/1U dense rack form factorEasily accessible outlet receptacles and improved cable managementTitleHP EO4505N Power distribution unit (PDU) PN 228481-007 Spare 417587-D71#ConditionNew, open box (see actual images)ContentPDU unit, accessoriesManufacturerHPModelEO4505NMPN228481-007SKUPIHP005 #1089_100UPC829160895871http://www.compeve.com/Products/PDU/HP/EO4505N/EO4505N_compeve__1.jpghttp://www.compeve.com/Products/PDU/HP/EO4505N/EO4505N_compeve__2.jpg