HP Modular PDU with Fixed Cord Extension Bars are optimized for use with 1U rack mount fixed rail servers. They significantly improve cable management & airflow, & provide the power distribution needed to run your rack-mounted systems. The modular PDU with fixed cord extension bars are ideal to be used with 1U rack mount servers, which are fixed in place in the rack. DL360 & DL320 servers will significantly benefit from the shorter cables, improving cable management concerns & increasing the airflow through the back of the rack. For redundant applications, two PDU sticks may be placed side by side to allow independent power sources to reach the same server.