User Manual

Table 6. Memory matrix (continued)
128 GB
DDR5
32 GB 32 GB 32 GB 32 GB
External ports
The following table lists the external ports of your Precision 3660 Tower.
Table 7. External ports
Description Values
Network port
One RJ45 Ethernet port, 1 Ghz
One RJ45 Ethernet port, 2.5 Ghz (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
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)
Media-card reader
One SD-card slot
Power-adapter port
NA
Security-cable slot
One Kensington security-cable slot
Internal slots
The following table lists the internal slots of your Precision 3660 Tower.
Table 8. Internal slots
Description Values
M.2
One M.2 2230 slot for WiFi and Bluetooth card
Two M.2 2230/2280 slots (SSD1 and SSD2) for solid-state
drives
One M.2 2280 slot (SSD3) for solid-state drive
NOTE: SSD1 slot natively supports M.2 2280 SSDs. M.2
2230 SSDs can be installed on this slot by using an
extender part only.
14 Specifications of Precision 3660 Tower