Communication Specifications; Drives Specifications; Ports And Connectors Specifications; Power Supply Specifications - Dell ChengMing 3977 Tower Owner's Manual

Table 21. Intel HD Graphics drivers
Before installation

Communication specifications

Feature Specification
Network adapter Realtek 10/100/1000 Mbps Ethernet LAN

Drives specifications

NOTE: Your system support only 3 SATA devices for options of 3.5" HDD/ODD/2.5" HDD.
Feature Specification
Hard drive Two 2.5-inch SATA drive, one 3.5-inch SATA drive
Optical drive One DVD RW
(optional)

Ports and connectors specifications

Feature Specification
Front port audio one universal audio jack
Front port USB 2.0 two
Front port USB 3.0 two
Rear port audio one audio line out
Rear port display one VGA, one HDMI
Rear port USB 2.0 two
Rear port USB 3.0 two
Rear port serial port one
Rear port PS/2 keyboard and mouse
Rear port RJ45 one

Power supply specifications

Feature Specification
Type 290 W (UMA)
Frequency 47 Hz - 63 Hz
Voltage 90 VAC - 264 VAC
46 Technical Specifications
After installation