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22 About Your Monitor
USB Upstream Connector
12
34
Pin Number 4-pin Side of the Connector
1 DMU
2 VCC
3 DPU
4 GND
USB Downstream Connector
12
34
Pin Number 4-pin Side of the Connector
1 VCC
2 DMD
3 DPD
4 GND
Dell E5515H Car Video System User Manual