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Flat 30-pin ribbon cable with connectors at both ends

DELL

DELL Chromebook 3100 30-pin USB IO ribbon cable 7TV22 accessory

SKU CH-JVCZ-4HN9T

Genuine Dell OEM 30-pin ribbon cable connecting the right-side USB IO board to the motherboard on Chromebook 3100 laptops with WWAN

  • Genuine Dell OEM part ensures exact fit for Chromebook 3100
  • 30-pin ribbon cable connects right-side USB IO board to motherboard
  • Designed specifically for the 3100 laptop with WWAN option
  • Replaces Dell part number 7TV22 for direct compatibility
  • Not compatible with the 2-in-1 version of the Chromebook 3100

Genuine Dell OEM ribbon cable

The Dell Chromebook 3100 30-pin USB IO ribbon cable is a genuine Dell OEM replacement part. It connects the right-side USB IO board to the motherboard in the laptop version. This cable is required for models equipped with the optional 4G LTE WWAN wireless feature. It is not compatible with the 2-in-1 variant.

Passive interconnect component

As a passive ribbon cable, the part draws no power and produces no heat or noise during operation. It functions as a simple signal conduit between the IO board and the mainboard. Normal use involves no thermal management or acoustic considerations for this specific component.

Internal 30-pin connector fit

The cable installs inside the chassis using a 30-pin connector on each end. It frees the USB IO board to communicate with the system board without wireless interference. Repair technicians must verify the laptop version and WWAN configuration before installation. The part number 7TV22 ensures correct identification.

Highlights

  • Genuine Dell OEM part ensures exact fit for Chromebook 3100
  • 30-pin ribbon cable connects right-side USB IO board to motherboard
  • Designed specifically for the 3100 laptop with WWAN option
  • Replaces Dell part number 7TV22 for direct compatibility
  • Not compatible with the 2-in-1 version of the Chromebook 3100

Specifications

BrandDell

Questions about this item

How is the 30-pin ribbon cable installed and which step do people get wrong?

Disconnect the battery first, then unplug the old 30-pin cable from the motherboard and the right-side USB IO board; the step often missed is forgetting to reseat the latch on both connectors after inserting the new cable.

What maintenance or replacement will this cable need later?

The cable itself requires no scheduled maintenance; replace it only if the right-side USB ports stop working or the connector latch breaks during a future repair.

What limit appears first under sustained use of this cable?

Repeated flexing at the hinge area can fatigue the 30-pin conductors, leading to intermittent USB connectivity before any other failure mode.

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