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🔌 drok usb cable dc 5v boost to 9v 12v step up voltage converter 1a, usb to 9v/12v step-up volt transformer power regulator line with led display logo

🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display Review

5

·

Very good

Revainrating 4 out of 5  
Rating 
4.0
🚪 Garage & Shop, 🔧 Automotive Tools & Equipment

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img 1 attached to 🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display
img 2 attached to 🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display
img 3 attached to 🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display
img 4 attached to 🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display

Details

BrandDROK
Item Dimensions LxWxH3.7 x 4.3 x 3.1 inches
Output Voltage5 Volts, 9 Volts

Description of 🔌 DROK USB Cable DC 5V Boost to 9V 12V Step Up Voltage Converter 1A, USB to 9v/12v Step-up Volt Transformer Power Regulator Line with LED Display

DROK USB step up boost converter input voltage: DC 5V, output voltage: DC 12V/9V, max output current:0.8A (12V)1A (9V) or 1A (9V). APPLICATION: the usb to DC 12V/9V cable can be used to power the router via power bank if power down. In addition, can also be applied to other device which is 5v power supply, such as small fan, desk lamp, solar panel, USB power pack, power adapter, speakers that requires for 12V/9V poewr and bluetooth audio etc. SWITCH & LED DISPLAY: our stepup regulator is designed with switch, you can choose the output DC 12V or 9V through it, and the LED display would tell the output voltage value. CONVENIENT USE: plug and play, you can still enjoy the WIFI during power cuts; design with small dimension, is very convenient to carry out. PACKAGE INCLUDING: 1x 5v to 9v 12v USB converter; 1x 3.5*1.35mm DC connector. One year long time warranty. If there's any question for using or quality please contact us to get a replacement or refund.

Reviews

Global ratings 5
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    1
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Type of review

Revainrating 5 out of 5

Great product and right price!

These USB voltage converters work very well. I've only had them a few days, but I've used them for a few hours and they've been putting out 9.1 volts continuously. I use them with a 22,000mAh USB rechargeable battery to power my guitar pedalboard (13 analog pedals, 2 USB voltage converters and 1 USB rechargeable battery with 4 USB outputs). So far, so good! This eliminated the noise I got from my AC connected pedals (I used 2 power supplies which should have been isolated but I could still hear

Pros
  • Absolute Legend
Cons
  • Updates

Revainrating 5 out of 5

Works well - power supply accessory

Works well but be aware of the amperage your device draws. I tried using it with my HMD Vive Pro and it worked for a while, but the converter got very hot and would periodically shut down under these conditions. As it turned out, the HMD was drawing nearly twice its rated current, which is a dangerous situation. All converters like this one that convert 5V to 12V are designed for a 5V, 2A input. This is a common input from standard USB ports. This equates to 12V, 0.833A by the conversational…

Pros
  • Excellent value for money
Cons
  • Reliability

Revainrating 5 out of 5

This works great on my guitar pedal! Now I'm completely mobile with my setup.

I wanted something that would power my guitar pedalboard with a simple battery powered USB connection so I could play anywhere without worrying about an outlet . Serves its purpose fully and is durable. I glued a 9V/12V switch to the 9V position so I wouldn't accidentally over-voltage my pedals, and for this application you'll need a connector to reverse the polarity of the output connector. I also have a connecting cable to connect multiple pedals to the same power supply. It produces a very…

Pros
  • High marks for support and durability from testers
Cons
  • Damaged

Revainrating 1 out of 5

It really works! in Power Accessory

I love that it has an LCD screen that shows if it runs on 9 or 12 volts. I use this to power the camera from a USB DC power adapter so I don't drain the stock camera batteries. I used to use a battery bank/power supply with a dedicated DC output, but these are nowhere to be found now. This adapter allows me to use standard power supplies and increase the voltage to meet my camera's needs without sacrificing too much performance during the conversion. The only thing worth noting is that it is…

Pros
  • Durable finish
Cons
  • Interchangeable

Revainrating 4 out of 5

Very poor performance compared to some others I've tested

I had high hopes. I really like this brand and have had good luck with other products from them but not this one. I have purchased similar products from several brands and then measured them for voltage and ripple regulation using an electronic load, oscilloscope and voltmeter. This was the worst. With a load of 250 mA, the voltage dropped by about 300 mA. Ripple was around 75mV with an ugly triangular top and square bottom, not even rounded typical waveform (intermittent mode artifacts?) at…

Pros
  • Few competitors
Cons
  • Unreliable