Dell DRAC
In computing, the Dell Remote Access Controller or DRAC, an interface card from Dell Inc, provides out-of-band management facilities. The controller has its own processor, memory, network connection, and access to the system bus. Key features include power management, virtual media access and remote console capabilities, all available through a supported web browser or command line interface. This gives system administrators the ability to configure a machine as if they were sitting at the local console (terminal).
The DRAC interfaces with baseboard management controller (BMC) chips based on the Intelligent Platform Management Interface (IPMI) 2.0 standard, which allows use of IPMI out-of-band interfaces such as IPMI Over LAN.
The latest versions are now iDRAC, where the "i" is for integrated as the hardware part is now often integrated on the motherboard of the server. The standard version of iDRAC the software / hardware is piggy-backed onto one of the server's on-board network interfaces using a unique IP address. When the optional "Enterprise" version of iDRAC has been enabled, it is connected to its own "iDRAC" network interface.
Read more about Dell DRAC: Versions, Power Management, Remote Console, Virtual Media, Access, Implementation, IDRAC6 Details, Generation 12: IDRAC7, Limitations