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Five small USB-C male-to-female adapters with metal casings

Fervit

Fervit USB-C PD blocker 5.1K resistor male to female adapter 5pcs

SKU CH-57KW-VEDHT

USB-C male-to-female adapter blocks 20 V PD power, passes only 5 V through a 5.1 K resistor, and supports USB 2.0 data up to 480 Mbps in a metal casing

  • Blocks 20V PD power for safe 5V charging
  • 1K resistor ensures stable current delivery
  • USB 2.0 data at 480Mbps supported
  • Reversible USB 3.1 Type-C connectors
  • Metal casing resists wear in daily use

USB-C PD blocker with 5.1K resistor

This Fervit adapter physically blocks 20V Power Delivery transmission while allowing only DC 5V charging through a USB-C male to female connection. It integrates a detection mechanism that regulates current levels to prevent overcharging and overheating during extended use. The pack contains five adapters built with resilient metal casings designed to resist daily wear in demanding environments.

Replaces direct PD charging cables for 5V-only

The adapter is intended for users who need to charge USB-C devices rated exclusively for 5V input from power sources that negotiate higher PD voltages. The jump is worth it when the connected device lacks internal PD negotiation circuitry and could be damaged by 20V output, or when a stable 5V stream is required for consistent charging of shavers, headphones or electric screwdrivers.

Suits travelers and technicians with multiple 5V

The reversible Type-C connectors support USB 2.0 data rates up to 480Mbps while minimising cable clutter for users carrying several DC 5V devices. Buyers who require USB 3.1 Gen 2 or higher data throughput, or who need to pass full Power Delivery voltages to laptops and high-power peripherals, should look at a different solution.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $18.99
Pricier than about 73% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

Does the USB-C male end need any special port or clearance to fit?

The adapter uses a standard USB-C male plug that fits any USB-C female port; its reversible design means orientation does not matter.

How do I install the blocker so the 5.1K resistor correctly limits power to 5V?

Plug the male end into the charger or power bank first, then connect your 5V device to the female end; the resistor automatically negotiates 5V and blocks 20V PD.

Will the metal casing or the 5.1K resistor degrade and need replacement?

The resilient metal casing resists daily wear, and the fixed 5.1K resistor has no moving parts, so no scheduled maintenance or replacement is required.

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