Solved: pin assignment for Power On/off Switch/led Cable 710821-001 - HP Support Community - 7458720
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730361-001 HP FRONT CONTROL PANEL ASSEMBLY FOR HP PRODESK 400 G1 SFF SMALL FORM FACTOR - ( 2 ) TWO USB 3.0 TYPE A PORTS ( 2 ) TWO USB 2.0 TYPE A PORTS ( 1 ) ONE AUDIO JACK ( 1 ) ONE MIC JACK
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HP Front I/O (input/output) cable assembly - Contains USB ports and audio jacks - HP EliteDesk 705 ... - 784772-001
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HP ProDesk 600 EliteDesk 800 G1 SFF Desktop Front I/O Panel USB Audio Assembly 711581-001 (Refurbished)
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HP Front I/O cable assembly - Supports four USB (2USB2.0 + 2USB3.0) ports, two audio jacks, and power on/off switch PRODESK 600 G2 - 804290-001
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