Tech & Electronics >>
HKM-386451 4K HDMI to USB3.0 Video Capture Card for Streaming and Recording
Experience seamless streaming and recording with the HKM-386451 4K HDMI to USB3.0 Video Capture Card. This compact and user-friendly device is designed for both professionals and enthusiasts who demand high-performance video capture. Whether you're live streaming gameplay, recording tutorials, or producing online content, this capture card delivers exceptional quality and versatility.
With the capability to capture a single HD HDMI video signal, the HKM-386451 allows you to record video signals up to 1080p at 60Hz, while supporting HDMI input of up to 4K at 30Hz. It offers robust compatibility with multiple operating systems including Windows 7, 8, 8.1, 10, Linux OS, and Mac OS. Simply connect it via a USB3.0 interface, which boasts impressive bandwidth of 300 to 350MB/s, while also maintaining backward compatibility with USB2.0.
The HKM-386451's design ensures an effortless setup, requiring minimal installation while supporting various USB3.0 chipsets. It automatically detects the input video and audio formats, adjusting the output size and frame rate as necessary. Plus, the device supports both MJPEG and YUY2 formats and adheres to UVC and UAC protocols, providing an easy integration with third-party playback and acquisition software.
For those who strive for clarity, the RGB color range of 0 to 255 ensures vibrant color reproduction, while advanced features like online firmware upgrades enhance product compatibility over time. Notably, the capture card enables the connection of two acquisition sticks to a single PC for expanded capabilities.
Elevate your streaming and recording experience with the HKM-386451 4K HDMI to USB3.0 Video Capture Card. It is the ideal solution for bringing your content to life with professional-grade quality and reliability.
[Product name] 4K HDMI to USB3.0 video capture card
[Product alias] Live video capture card, USB3.0 video capture card, HDMI capture card, HDMI high-definition video capture box
[Product introduction] 4K HDMI to USB3.0 video capture card, easy to carry, superior performance, good compatibility, simple installation, powerful functions, etc., can collect 1 HDMI input signal; compatible with Windows 7, 8, 8.1, 10 or Later, USB3.0 interface of Linux OS, Mac OS, compatible with a variety of USB3.0 chipsets (Intel, Renesas, ASMedia, Fresco Logic), backward compatible with USB2.0, connected to PC or mobile phone via USB3.0 interface , Through many free third-party playback and acquisition software, to achieve preview, recording, acquisition, live broadcast and other functions, HDMI video capture conforms to UVC and UAC standards, easy to use.
【Features】
1. It can capture a single HD HDMI video signal;
2. Recording video signals up to 1080p/60Hz, HDMI input supports 4K/30Hz;
3. Support MJPEG and YUY2;
4. Support UAC&UVC protocol, support 48 KHz PCM audio sampling rate;
5. Some win7 need to install the driver;
6. Compatible with Windows 7, 8, 8.1, 10 or later, Linux OS, Mac OS operating system;
7. USB3.0, 300~350MB/s bandwidth, compatible with USB 2.0 (40MB/s bandwidth);
8. It can automatically detect the input video format and automatically adjust to the set output size and frame rate;
9. It can automatically detect the input audio format and convert it to 48KHz PCM audio;
10.2 acquisition sticks can be used on one PC;
11. Support firmware online upgrade, better improve product compatibility;
12. The picture quality is clearer, the RGB color range is 0~255, and the delay is better;
13. Support all third-party player software compatible with UVC and UAC protocols;
【System Requirements】
Computer system requirements:
Windows® 10 / Windows 8.1 / Windows 7 (SP1);
Desktop computer: Intel® Core™ i5-4440 3.10 GHz + NVIDIA® GeForce® GTX 660 or above;
Notebook: Intel Core i7-4810MQ + NVIDIA GeForce GTX 870M or above;
4 GB RAM (8 GB recommended);
Mobile phone system requirements:
Android phone (supported by newer phones);
Only supports USB2, not USB3. (The reason is that the android UVC driver does not support USB3);
If it is a USB Android phone, you need to force a pure USB2 cable into USB2 mode to use it;
【Product Specifications】
1. Input interface: 1 HDMI interface;
2. Output interface: USB3.0, 300~350MB/s throughput;
3. HDMI input: 4K/30Hz,1080P/60, 59.94, 50, 30, 29.97, 25, 24, 23.98,1080i 50/60, 720P 50/60,480P,576P1280x1024, 1280x960, 1024x768, 800x600, 640x480;
4. HDMI audio input: LPCM audio signal;
5. HDMI input format: compatible with HDMI1.4 standard, the maximum bandwidth supports 225MHz 4K/30Hz, 12bit deep color;
6. Output format Resolutions: 640x480/720x480/720x576/800x600/1024x768/1280x720/
1280x960/1280x1024/1366x768/1360x768/1440x900/1400x900/1680x1050/1920x1080
frame rate: 25/29.97/30/50/59.94/60 fps;
7. Video sampling rate: HDMI: 165MHz;
8. Audio and video capture: it complies with UVC (USB video class) and UAC (USB audio class) standards;
9. Output color space: YUV, RGB;
10. Support operating system: Windows 7, 8, 8.1, 10 or later, Linux OS, Mac OS;
11. Software compatibility:
Adobe Flash Media Live Encoder (Windows, OS X);
Real Producer Plus (Windows); VLC (Windows, OS X, Linux);
QuickTime Broadcaster (OS X); QuickTime Player (OS X), OBS, PotPlayer and etc.
12. Power consumption: <= 2.5W;
13. Working temperature: 0-70 degrees Celsius;
14. Storage temperature: -20-120 degrees Celsius;
15. Storage humidity: 5%-90%;
【Interface Description】
1. Signal indicator: When the device captures video normally, the indicator lights up.
2. Power indicator: When the device is connected to the USB port of the computer, the indicator lights up.
3. HDMI input: This slot is where you can connect HDMI output sources such as cameras, camcorders, game boxes, and IPTV boxes.
4. USB3.0 output: This slot is where you connect to the USB3.0 input of your computer or notebook.
【Size】113*61*13mm;
【Colour: Black
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
Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.
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
Official national carrier with nationwide coverage.
UPS
Fast and reliable ground and express shipping.
FedEx
Express delivery with real-time tracking.
DHL eCommerce
Efficient parcel delivery for e-commerce shipments.
Delivery Process
Delivery Time Summary
Cancellations & Taxes
You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.
Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.
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
Product Guidance
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