Add a redundant or replacement power supply to the etchs2u media converter chassis the etchs2upsu redundant replacement 200w chassis power module for etchs2u lets you add a redundant power supply or keep a replacement power supply on hand for your etchs2u media converter chassis a hot swappable modular design allows a second media converter redundant power supply to be removed or installed while the chassis is still operating avoiding unnecessary downtime the power supply is installed