j5create USB-C to 4K 144Hz HDMI Multi-Port Adapter | 10Gbps USB-C / USB-A Hub & 100W Power Delivery (JCA399G)
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- SKU JCA399G
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Portable 4-in-1 Design
Combines 4K144 HDMI™, one USB™ Type-A 10 Gbps, one USB-C® 10 Gbps, and PD pass-through charging. 4 ports working simultaneously.

Stunning HDMI™ 4K144Hz Display
Elevate your gaming and visual experience with seamless support for high resolution and refresh rate.


Supports PD pass-through charging
Charging your laptop with PD pass-through charging up to 85W and powering up connected peripherals.
High Speed USB-C® and Type-A 10Gbps
Connect various peripherals and transfer large files in seconds.


Universal Compatibility
Compatible with USB-C® devices such as iPhone® 15, MacBook®, laptops, iPad®, Steam Deck™, and other devices.
Hassle Free Plug & Play Set Up
Use the device immediately - no driver installation required.

Suitable for gamers and professionals

Supercharge your workspace or gaming hub with a single multi-performance hub. The j5create JCA399G is an elite, high-speed USB-C to 4K HDMI multi-port adapter engineered to drive ultra-high-refresh-rate video while simultaneously expanding your data connection channels. Built for demanding users, it outputs stunning 4K visuals at an ultra-smooth 144Hz while expanding your laptop or smartphone setup with 10Gbps USB ports and up to 100W Power Delivery pass-through. It is the ultimate plug-and-play solution to convert any solo USB-C or Thunderbolt port into an uncompromised high-definition power docking station.
Key Features
➔ Next-Gen 4K @ 144Hz Resolution: Fully supports ultra-high-definition video streaming up to 4K @ 144Hz or 8K @ 30Hz, eliminating lag and motion blur for extreme gaming and sharp content creation.
➔ Blazing-Fast 10Gbps Data Transfer: Outfitted with high-speed USB-C and USB-A 3.2 Gen 2 ports that transfer huge 4K videos, massive project files, or image libraries in a matter of seconds.
➔ 100W Power Delivery Pass-Through: Keeps your power-hungry laptop, MacBook, or smart device fully charged while simultaneously handling multiple high-data workflows and premium video outputs.
➔ Dynamic HDR Support: Displays rich, vibrant color mapping with deep contrasts for cinematic entertainment formats and advanced photo/video editing.
➔ Durable & Premium Aluminum Housing: Styled with a sleek, heat-dissipating aluminum metal finish that minimizes electromagnetic interference while blending beautifully with your modern premium workspace gear.
Technical Specifications
| Component / Feature | Specification |
| Manufacturer Model | ➔ JCA399G |
| Host Connection (Input) | ➔ USB Type-C Male Connector |
| Video Port (Output) | ➔ 1 x HDMI Type A Female (Supports 8K @ 30Hz / 4K @ 144Hz / 2K @ 240Hz) |
| USB Data Ports | ➔ 1 x USB Type-C 3.2 Gen 2 (10Gbps), 1 x USB Type-A 3.2 Gen 2 (10Gbps) |
| Power Delivery Port | ➔ 1 x USB-C Female (Supports up to 100W Power Delivery 3.0 Pass-Through) |
| HDCP Compliance | ➔ HDCP 2.3 and HDCP 1.4 Secure Digital Media Protection |
| Housing Material | ➔ Premium Space Grey Aluminum Alloy |
| Cable Length | ➔ 150 mm (Approx. 5.9 inches) |
| Product Dimensions | ➔ 70(W) x 43.5(H) x 13.5(D) mm |
| Product Weight | ➔ Lightweight ~56 grams |
Hardware Requirements & Display Support
⚠️ Important Note: To unleash full 8K or 4K@144Hz display resolutions, your host computer's USB-C port must support DisplayPort Alternate Mode (DP Alt Mode) 1.4 or higher, and your HDMI cable/display must meet HDMI 2.1 specifications.
Platform & Hardware Compatibility
► Apple Ecosystem: Perfect native match for iPhone 15/16 Pro and Max series, iPad Pro/Air (USB-C), and MacBook Pro or Air lineups powered by M1, M2, or M3 processing silicone.
► Windows Laptops & Desktops: Natively compatible with Dell XPS, ASUS ROG, MSI Gaming laptops, Lenovo ThinkPad, and any workstation hosting Thunderbolt 3, Thunderbolt 4, or USB4 configurations.
► Operating Systems: Driverless, instant configuration across Windows, macOS, ChromeOS, iPadOS, and Android.
► High-End Displays: Tailor-made for premium 4K high-refresh-rate gaming screens, commercial UHD editing panels, and standard living room Smart TVs.
Ideal For
➔ High-Frame Gaming Enthusiasts: The perfect tool to bridge a gaming laptop or portable handheld console directly to a 144Hz or 240Hz monitor without losing refresh fluidness.
➔ On-The-Go Content Creators: Ideal for video editors or photographers who require ultra-fast 10Gbps external SSD transfers combined with uncompressed 4K reference screen feeds.
➔ Single-Port Laptop Professionals: Great for modern laptop users wanting a tiny, premium hub that handles a 4K display, accessory mouse, and laptop charger over one single wire.
➔ Smartphone Desktop Users: Excellent for setting up mobile workstation environments (like Samsung DeX) directly from a smartphone screen with interactive peripheral support.
We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.
Order Processing Time:
Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.
Shipping Methods:
Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)
Packaging:
Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.
International Shipping:
We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.