Netgear RN21241D – ReadyNAS 2120 1U 4- Bay, 4x1TB Desktop Drive Hardware Manual

The following figure shows the rear panel of the ReadyNAS 4312S storage system.

Figure 22. Rear panel

Power System Alarm Mute button

Power System LED

Power supplies

Power Supply LEDs

1 Gigabit Ethernet LAN ports with LED status indicators

USB 3.0 ports

Unit Identifier (UID) LED

eSATA ports

SFP+ ports with LED status indicators

You can obtain information about the status of your system by reviewing the front panel indicators that are
listed in the following table.