Tech & Electronics >>
HKM-683667 DC Boost Converter USB Step Up Power Supply for 5V to 9V/12V Output with Voltage Protection
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.
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
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Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.
Our U.S. Shipping Partners
USPS
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UPS
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FedEx
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Delivery Process
Delivery Time Summary
Cancellations & Taxes
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Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
How We Can Help
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Our experts help you choose the right product.
Order Assistance
Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week
