Field-replaceable NMC Integrated Network Management Card/Display Module can be replaced in the field to minimize downtime disruption in the unlikely event of a failure. High Retention Outlets With no special power cords required, high retention outlets provide up to twice the holding force to reduce risk of accidental disconnect on 9000 series PDUs. 60C Operating Temperature Select 9000 series PDUs provide the ability to operate in a maximum ambient air temperature of 60C (140F) at full load ensuring reliability and availability even in today's high density deployments. Other models allow up to 45C (113F). C13/C15 and C19/C21 Hybrid Outlets Available on select 9000 series PDUs only, Industry 1st hybrid outlets allow 60C operating temperature at full load, are fully compatible with standard C14 and C20 power cords, and are future proofed for implementation of higher temperature rated devices requiring C16 and C21 power cords. Hydraulic Magnetic Circuit Breakers Provide increased availability by maintaining trip current over a wide temperature range.