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A thin black coaxial cable with a small DC power jack connector at one end

DELL

DELL Precision 17 7710 7720 M7710 M7720 0MJ0HM DC Jack Cable

SKU CH-D4Z5-3DN9K

Replacement DC jack cable for Precision 17 7710 and 7720 models

  • TypeAudio/Video & Power Cable
  • Genuine Dell replacement part for Precision 17 models
  • Connects DC power jack to motherboard reliably
  • Matches part numbers 0MJ0HM and DC30100VH00
  • Fits Precision 7710, 7720, M7710 and M7720

Dell Precision DC Jack Cable 0MJ0HM

This replacement DC jack cable is designed for Dell Precision 17 7710 7720 M7710 M7720 workstations. It restores the power connection between the AC adapter port and the motherboard. Buyers who need a different connector type or a cable for another laptop series cannot use this part.

Thermals noise and power draw

The cable carries DC power only and generates no measurable heat or noise during normal operation. It adds negligible resistance to the power path so the system draws the same wattage as with the original cable. No active cooling or extra power headroom is required.

Highlights

  • Genuine Dell replacement part for Precision 17 models
  • Connects DC power jack to motherboard reliably
  • Matches part numbers 0MJ0HM and DC30100VH00
  • Fits Precision 7710, 7720, M7710 and M7720

Specifications

BrandDell
TypeAudio/Video & Power Cable

Questions about this item

How is the 0MJ0HM DC jack cable installed in a Precision 17 7710, and what step do people often miss?

Remove the bottom cover, disconnect the old cable from the motherboard DC-in header, route the replacement through the chassis clips, and reseat the connector fully so the locking tabs click — partial insertion causes intermittent charging.

What maintenance or replacement will the DC jack cable need later?

The cable is a passive coaxial power lead with no serviceable parts; replace it only if the centre pin bends, the ferrule cracks, or the laptop stops charging when the plug is wiggled.

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