Precision 3660 Tower Setup and Specifications

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External ports and slots

The following table lists the external ports of your Precision 3660 Tower.

Table 1. External ports and slots
The following table lists ports and connectors available on Precision 3660 Tower.
Description	Values
Network port	One RJ45 Ethernet port, 1 GbE One RJ45 Ethernet port, 2.5 GbE (optional)
USB ports	Front: One USB 3.2 Gen 1 (5 Gbps) port with PowerShare One USB 3.2 Gen 1 (5 Gbps) port One USB 3.2 Type-C Gen 2 (10 Gbps) port One USB 3.2 Type-C Gen 2x2 (20 Gbps) port with PowerShare Rear: Two USB 2.0 (480 Mbps) ports with Smart Power On Two USB 3.2 Gen 2 (10 Gbps) ports Two USB 3.2 Type-C Gen 2 (10 Gbps) ports
Audio port	Front: Universal audio jack Rear: Line-out audio port
Video port(s)	Two DisplayPort 1.4 (HBR2) ports One Optional video port (HDMI 2.0/ DisplayPort 1.4(HBR3)/ VGA/ USB Type-C with DisplayPort Alt mode) NOTE:Download and install the latest Intel Graphics driver from Dell Support Site to enable multiple displays.
Media-card reader	One SD-card slot
Power-adapter port	NA
Security-cable slot	One Kensington security-cable slot