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USB boost cable with LED voltmeter display and 3.5mm 1.35mm DC connector

Funch

Funch USB 9V 12V Boost Cable 1A .8A 3.5mm 1.35mm

SKU CH-ZZRF-WZ68Q

Converts a 5 V USB source to selectable 9 V or 12 V DC at up to 1 A or .8 A, includes a 3.5 × 1.35 mm connector and LED voltage display

  • Boost router from a power bank during outages
  • Switch between 9 V and 12 V output with LED readout
  • Delivers 1 A at 9 V or .8 A at 12 V
  • Includes 3.5×1.35 mm DC plug for quick hookup
  • Plug-and-play design keeps Wi-Fi running without mains

USB 5V to 9V/12V boost cable

The Funch USB boost cable converts a standard 5V USB source into selectable 9V or 12V DC output. It suits users who need to run 9V or 12V devices such as routers, small fans or desk lamps from a power bank or USB charger during outages or portable use.

Sustained load behaviour

Maximum continuous output is rated at 1A when set to 9V and .8A when set to 12V. The integrated LED voltmeter displays the active output voltage so the user can verify the selected level under load.

Installation and common issues

Connection is plug-and-play using the included 3.5mm by 1.35mm DC barrel connector and a toggle switch selects the output voltage. The only frequent issue is attempting to draw more current than the rated limits, which will cause the converter to shut down or the source to current-limit.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 60% of the 5,998 comparable items (median $24.99).

Specifications

Product
Brand nameDROK

Questions about this item

Does the boost cable get hot or noisy when running a router all day from a power bank?

The DROK converter draws 5 V USB power and steps it to 9 V at 1 A or 12 V at .8 A with no fan, so heat stays low and operation is silent.

What must I already own to use this cable with my 9 V router?

You need a USB power source that can supply 5 V and a router or device fitted with a 3.5 mm × 1.35 mm DC jack.

Will the 3.5 mm × 1.35 mm plug fit the older router I want to keep using?

The included connector matches a 3.5 mm outer and 1.35 mm inner diameter barrel, so it fits devices with that exact jack size.

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