Rear view of the system of Dell PowerEdge R660

In the previous article, we have made a detailed introduction to the performance  of Dell EMC PowerEdge R660, in this article, we will introduce the rear view of the system of Dell EMC PowerEdge R660 to help you better understand the product.

Figure 1. Rear view of the system with 3 x LP PCIe slots

ITEM	PORTS, PANELS, OR SLOTS	ICON	DESCRIPTION
1	BOSS-N1 module	N/A	BOSS module for internal system boot.
2	Power supply unit (PSU1)		PSU1 is the primary PSU of the system.
3	PCIe expansion card riser 2 (slot 1 and slot 2)	N/A	The expansion card riser enables you to connect PCI Express expansion cards.
4	System Identification (ID) button		The System Identification (ID) button is available on the front and back of the system. Press the button to identify a system in a rack by turning on the system ID button. You can also use the system ID button to reset iDRAC and to access BIOS using the step through mode. When pressed, the system ID LED in the back panel blinks until either the front or rear button is pressed again. Press the button to toggle between on or off mode.
5	PCIe expansion card riser 3 (slot 3)	N/A	The expansion card riser enables you to connect PCI Express expansion cards.
6	Power supply unit (PSU2)		PSU2 is the secondary PSU of the system.
7	VGA port		Enables you to connect a display device to the system.
8	USB 3.0 port		The USB port is 9-pin and 3.0-compliant. This port enables you to connect USB devices to the system.
9	USB 2.0 port		The USB port is 4-pin, 2.0-compliant. This port enables you to connect USB devices to the system.

10	Dedicated iDRAC9 Ethernet port		Enables you to remotely access iDRAC. For more information, see the Integrated
11	OCP NIC card (optional)	N/A	The OCP NIC card supports OCP 3.0. The NIC ports are integrated on the OCP card which is connected to the system board.
12	NIC ports (optional)		The NIC ports that are integrated on the LOM card provide network connectivity which is connected to the system board.