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Compact USB-C to DC 7.4x5.0mm HP barrel adapter with alloy shell and LED wattage display

Fervit

Fervit USB-C to DC 7.4x5.0mm HP Barrel Adapter 100W with Wattage Display

SKU CH-E3X5-DPK46

Connects USB-C chargers to 7.4x5.0mm barrel laptops with real-time voltage, current and power display up to 100W

  • Real-time power monitoring with LED voltage, current and wattage display
  • 100 W USB-C Power Delivery via built-in PD trigger for fast laptop charging
  • Works with QC 2.0, QC 3.0 and USB PD chargers for broad compatibility
  • Alloy shell protects the DC 7.4×5.0 mm barrel plug for durable daily use
  • Compact plug-and-play design fits easily in a bag for travel convenience

USB-C to DC 7.4x5.0mm adapter for HP laptops

This Fervit adapter converts a USB-C Power Delivery source into a 7.4x5.0mm barrel connector used by many HP laptops. It accepts up to 100W from a compatible USB-C charger and passes 20V at 5A to the laptop. The unit is aimed at owners of barrel-jack HP notebooks who want to use a modern USB-C power brick.

Real-time wattage display and PD trigger

An integrated LED screen shows live voltage, current and power so users can confirm the negotiated rate. A built-in 100W PD emulator trigger requests 20V/5A from the source charger automatically. The adapter also works with 65W sources and voltages between 18.5V and 20.5V, but full 100W output requires a 100W-rated charger and cable.

Plug-and-play installation with barrel-fit caveat

The alloy-shelled dongle is fully plug-and-play and needs no drivers or configuration. The only common issue is a mismatched barrel size; the 7.4x5.0mm plug must match the laptop's DC jack exactly or it will not seat and power will not flow. Users should verify the jack dimensions before purchase.

Highlights

  • Real-time power monitoring with LED voltage, current and wattage display
  • 100 W USB-C Power Delivery via built-in PD trigger for fast laptop charging
  • Works with QC 2.0, QC 3.0 and USB PD chargers for broad compatibility
  • Alloy shell protects the DC 7.4×5.0 mm barrel plug for durable daily use
  • Compact plug-and-play design fits easily in a bag for travel convenience

Specifications

BrandFervit

Questions about this item

Will the 7.4×5.0 mm barrel connector or the USB-C plug wear out first with daily insertion?

The alloy-shell barrel plug is built for repeated mating cycles, while the USB-C male end follows the same durability rating as standard PD cables; neither component has a published cycle limit.

What caps the sustained output when a 100 W charger and cable are used continuously?

The adapter is rated for a maximum of 100 W at 20 V / 5 A; the internal PD trigger and the barrel interface both share that ceiling, so 100 W is the hard limit.

How warm does the alloy housing get and does the LED display add noticeable heat during all-day charging?

The metal shell acts as a passive heatsink for the 100 W throughput, and the low-power LED display draws negligible current, so the unit stays warm but within normal operating temperature.

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