The R720xd supports up to 24 2.5-inch or up to 12 3.5-inch front-accessible, hot-plug hard drives
that are secured by a removable front bezel. Other front-panel features include an LED control
panel, a USB connector, and a video connector.
The R720 back panel includes features such as redundant hot-plug power supply units (PSUs), 4
Ethernet connectors, PCI expansion slots, and many other features that are described in the rest of
this guide.
PowerEdge R720 and R720xd Technical Guide
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