Introduction
The j5create USB-C to 2.5G Ethernet Adapter (JCE145) is designed to provide a high-speed wired network connection for your USB-C enabled devices. This adapter allows you to connect to an Ethernet network at speeds up to 2.5 Gigabits per second, offering a stable and secure alternative to wireless connections. It is a plug-and-play device, simplifying installation and use across various operating systems.
Key Features:
- USB 3.0 plug-and-play functionality, backward compatible with USB 2.0/1.1.
- Supports 10M/100M/1G/2.5 Gbps Ethernet performance via an RJ-45 connector.
- Lightweight and portable design.
- Equipped with Activity and Link LED indicators for status monitoring.
- Compatible with Windows, macOS, Chrome OS, and Linux operating systems.
Package Contents
- 1 x j5create USB-C to 2.5G Ethernet Adapter (JCE145)
Product Overview

Image: The j5create USB-C to 2.5G Ethernet Adapter, featuring a silver-grey body with a white USB-C cable and connector, and an RJ45 Ethernet port with green and yellow LED indicators.
The JCE145 adapter features a compact design with a USB-C connector on one end and an RJ45 Ethernet port on the other. The RJ45 port includes two LED indicators: a green LED for link status and a yellow LED for activity status. These indicators provide visual feedback on the network connection and data transfer.
Setup
- Connect the Adapter: Plug the USB-C connector of the JCE145 adapter into an available USB-C or Thunderbolt 3/4 port on your laptop, tablet, or other compatible device.
- Connect to Network: Insert a standard RJ45 Ethernet cable from your router, modem, or network switch into the RJ45 port on the JCE145 adapter.
- Driver Installation: The JCE145 is designed for plug-and-play operation. For Windows 10, Chrome OS, and macOS 10.6 and later, no additional driver installation is typically required. The operating system should automatically detect and install the necessary drivers.
- Verify Connection: Once connected, observe the LED indicators on the RJ45 port. The green LED should illuminate to indicate a link, and the yellow LED should flash to indicate network activity.
- Universal Compatibility: The adapter is compatible with a wide range of devices including laptops, MacBooks, Chromebooks, and iPad Pro models that feature a USB-C port.

Image: The j5create USB-C to 2.5G Ethernet Adapter connected to a laptop's USB-C port, with an Ethernet cable plugged into the adapter. Text indicates 2.5X faster wired network access compared to 1000 Mbps.

Image: A laptop with the j5create USB-C to 2.5G Ethernet Adapter connected, illustrating its plug-and-play feature. Text states: "Plug and Play. No driver needed for Windows 10, Chrome OS, or macOS 10.6 and later."

Image: A close-up view of the RJ45 port on the j5create USB-C to 2.5G Ethernet Adapter, showing the green and yellow LED indicators illuminated. Text labels it as "LED Activity Indicator."

Image: The j5create USB-C to 2.5G Ethernet Adapter shown alongside icons representing various compatible devices: Laptop, MacBook, Chromebook, and iPad Pro. Text highlights "Universal Compatibility."
Operating
Once the adapter is successfully connected and recognized by your device, it will function as a standard wired network interface. Your operating system's network settings will display the new Ethernet connection. You can then access the internet or local network resources through this connection.
- Link LED (Green): A solid green light indicates a successful physical connection to the network.
- Activity LED (Yellow): A flashing yellow light indicates data transmission activity over the network.

Image: A person smiling and working on a laptop, which is connected to the j5create USB-C to 2.5G Ethernet Adapter and an Ethernet cable. Text states: "Work Efficiently with Faster Network."
Maintenance
- Keep the adapter clean and free from dust. Use a soft, dry cloth for cleaning.
- Avoid exposing the adapter to extreme temperatures, humidity, or direct sunlight.
- Do not attempt to disassemble or repair the adapter yourself. Refer to qualified service personnel for any repairs.
- Store the adapter in a safe place when not in use to prevent physical damage.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| No network connection / Adapter not recognized. |
|
| Slow network speed. |
|
| LED indicators are off. |
|
Specifications
| Model Number | JCE145 |
| Hardware Interface | USB Type-C, RJ45 Ethernet |
| Data Link Protocol | Ethernet, Gigabit Ethernet, USB |
| Data Transfer Rate | 2.5 Gigabits Per Second (2.5G) |
| Compatible Operating Systems | Windows, macOS, Chrome OS, Linux |
| Compatible Devices | Laptops, Tablets with USB-C/Thunderbolt ports |
| Product Dimensions | 2.68 x 0.57 x 0.91 inches (6.8 x 1.45 x 2.3 cm) |
| Item Weight | 2.08 ounces (0.06 Kilograms) |
| UPC | 847626004872 |
Warranty and Support
This j5create product is manufactured with quality and reliability in mind. For specific warranty information, please refer to the warranty card included with your purchase or visit the official j5create website. For technical support, driver downloads, or further assistance, please visit the j5create support page or contact their customer service directly.
Manufacturer: j5create







