outlet4Name is a read-write text field (up to 64 characters) that stores the human-readable label an administrator assigns to physical outlet 4 on the Unity PDU. This matters when responding to an alert on outlet 4, since a meaningful name tells the on-call technician immediately what device would lose power if that outlet were switched or tripped. For example, an admin could set outlet4Name to identify a backup NAS appliance plugged into that receptacle, so outlet 4 shows that equipment's name instead of just a bare number in the outlet listing.