SKU: 17526291037

HKM-683667 DC Boost Converter USB Step Up Power Supply for 5V to 9V/12V Output with Voltage Protection

Sale price$62.99 Regular price$69.99
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Description

HKM-683667 DC Boost Converter USB Step Up Power Supply for 5V to 9V/12V Output with Voltage ProtectionIntroducing the HKM 683667 DC Boost Converter, the ideal solution for those who need reliable power on the go. Designed to step up power from a 5V source to either a 9V or 12V output, this compact USB power supply ensures that you can keep essential devices running, such as your Wi Fi router, even during power outages. What sets the HKM 683667 apart is its intelligent IC technology which maintains a stable output voltage while providing key

Introducing the HKM-683667 DC Boost Converter, the ideal solution for those who need reliable power on the go. Designed to step up power from a 5V source to either a 9V or 12V output, this compact USB power supply ensures that you can keep essential devices running, such as your Wi-Fi router, even during power outages.

What sets the HKM-683667 apart is its intelligent IC technology which maintains a stable output voltage while providing key protections, including over-current, over-voltage, and overload safeguards. This means you can focus on staying connected without worrying about any potential damage to your devices.

The sleek design of the HKM-683667 makes it incredibly portable, allowing you to easily carry it with you wherever you need it. With a 500mm length, it offers ample reach to connect your power bank directly to your device without hassle.

Using the HKM-683667 is straightforward; simply connect the USB port to your power bank and the other end to your device using the DC5.5*2.1mm connector. Make sure to select the correct voltage cable for your device, as some Wi-Fi routers require 9V while others may need 12V.

Whether you're at home or traveling, the HKM-683667 DC Boost Converter is an essential accessory for maintaining connectivity and power with utmost reliability.

Product information:

Newly designed features:

In an emergency, power the WIFI router from the powerbank, and the Internet can be maintained even if the power is turned off.

Smart IC cycle stable output voltage

The intelligent and complex IC board controls the output voltage, and also has over-current, over-voltage, and overload protection.
Short and beautiful outlook:
Small size and easy to carry. 500mm length is enough to connect your device anywhere.

How to use it:
Just connect the powerbank of the usb port, and connect the other end (DC5.5*2.1mm) to the WIFI router.
Choose the right voltage cable, some WIFI routers are 9V, while others are 12V.
Do not choose the wrong output voltage.


Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17526291037

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Austin
Lowell, US
★★★★★ 5
Great quality for the price!
I was scouring online looking for a decent 1440p 144Hz monitor but didn't want to spend a small fortune. I came across these and decided why not bite the bullet and try them, to my surprise they're actually really nice quality and very solid. Only gripe I have is that the stands are the best and could be more sturdy. Overall an extremely solid monitor if you want 144hz 1440p monitors for a great price!
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Reviewed in the United States on January 9, 2025
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Aaron
Charlottesville, US
★★★★★ 1
bad quality control
I bought two for my computer. Then 4 more for others i work with. At first they seemed ok, but now we are all dealing with issues with them needing to be turned off and on or unplugged to reset the connection to get them on. I can only expect overtime it will get worse until they all finally break completely. The picture isnt great but i wasnt expecting it to be at this price. Ive tried other cables, refress rates, resolutions ect...
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Reviewed in the United States on October 20, 2025
L
Verified Purchase
Low quality after few wash
San Leandro, US
★★★★★ 5
Great
Great
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Reviewed in the United States on January 29, 2026
D
DSL 82
Houston, US
★★★★★ 5
Excellent Ultrawide Monitor for a MacBook Air Setup
I purchased the LG 34U60ZB-B to use primarily with my MacBook Air, and it has exceeded my expectations. Setup was incredibly simple using a USB-C to DisplayPort cable, and the monitor was recognized immediately at its full 3440 x 1440 resolution. The extra screen real estate is a game changer for productivity. I regularly have multiple documents, spreadsheets, browser windows, and email open at the same time, and the 34-inch ultrawide format makes it feel like having two monitors without the distracting bezel in the middle. Everything is sharp, crisp, and easy to read. The picture quality is excellent. Colors look vibrant and accurate, text is clear, and the WQHD resolution provides plenty of workspace without making items too small. I was particularly impressed with how good text rendering looks on macOS, which is important since most of my work involves reading and writing. The monitor feels much larger than a standard 27-inch display while still fitting comfortably on my desk. The curved screen adds to the immersive feel without being overly aggressive. It also works well for streaming videos, casual gaming, and photo viewing when I’m not working. One thing to note is that the monitor does not provide USB-C power delivery, so MacBook users will still need their charger connected separately. That wasn’t a dealbreaker for me given the monitor’s price and performance. Overall, this is an outstanding value. If you’re looking for an affordable ultrawide monitor for a MacBook Air or MacBook Pro, the LG 34U60ZB-B delivers excellent image quality, tons of workspace, and a clean, productive setup.
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Reviewed in the United States on June 13, 2026
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RA
Port Orchard, US
★★★★★ 5
Perfect Privacy!
best decision i ever made was to get this screen!
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Reviewed in the United States on July 24, 2025

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