NT-S25G - Network card / adapter Sabrent - Free user manual and instructions

Product Type	USB to 2.5 Gigabit Ethernet Adapter
Brand	Sabrent
Model	NT-S25G
Interface	USB Type-A (built-in cable) or Type-C (with included adapter)
Ethernet Port	RJ45
Data Rate	2.5 Gbps (IEEE 802.3bz), backward compatible with 10/100/1000 Mbps
Cable Length (built-in)	Approx. 15 cm (6 inches)
Material	Rugged aluminum for durability and heat dissipation
Power Source	Bus-powered via USB (no external adapter needed)
LED Indicators	Green (10/100/1000 Mbps link/activity), Orange (2.5 Gbps link/activity)
Operating Systems Supported	Windows XP or higher, Mac OS 10.4 or higher, Linux 2.4 or higher
Standards Compliance	IEEE 802.3bz (2.5GBASE-T)
Maximum Cable Distance	100 meters (328 feet) with CAT5e or better cable
Package Contents	Adapter with built-in cable, USB Type-A to Type-C adapter, user guide
Dimensions (approx.)	6.5 x 3.0 x 1.5 cm (2.6 x 1.2 x 0.6 in)
Weight (approx.)	30 g (1 oz)
Driver Installation	Plug-and-play; driver stored on internal memory (virtual CD drive on Windows)

Frequently Asked Questions - NT-S25G Sabrent

How do I install drivers on Windows?

Connect the adapter to a USB port. If AutoPlay is enabled, click the prompt to install drivers. Otherwise, open File Explorer, locate the virtual CD drive (e.g., G:\ RTL_UL), double-click it, and confirm installation. The virtual drive disappears after successful setup.

Does this adapter work on macOS?

Yes, it supports Mac OS 10.4 or higher. Drivers are typically built-in; if not, download them from Sabrent's website. Connect the adapter and it should be recognized automatically.

What do the LED colors mean?

Green LED: Solid when connected at 10/100/1000 Mbps, blinks during activity. Orange LED: Solid when connected at 2.5 Gbps, blinks during activity at that speed.

Can I use this adapter with USB 2.0 ports?

Yes, it is backward compatible with USB 2.0, but performance will be limited to USB 2.0 speeds (approx. 480 Mbps). For full 2.5 Gbps, use a USB 3.0 port or higher.

What is the maximum Ethernet cable length?

Up to 100 meters (328 feet) using at least CAT5e cable. Longer distances may degrade performance.

Does it support 100 Mbps or 1 Gbps speeds?

Yes, it is fully backward compatible with 10/100/1000 Mbps networks. The adapter auto-negotiates the highest speed.

Is an external power adapter required?

No, the adapter is bus-powered directly from the USB port. No external power source needed.

Can I use this with a Nintendo Switch or other gaming consoles?

The adapter is designed for computers. Consoles may support USB Ethernet adapters, but compatibility varies. Check your console's documentation.

Why is my adapter not recognized?

Try a different USB port, ensure drivers are installed, and check Device Manager (Windows) or System Information (Mac) for conflicts. Restart your computer. If issues persist, update drivers from Sabrent's website.

How can I verify the connection speed?

On Windows, open Network and Sharing Center, click the connection, and view 'Speed'. On Mac, go to System Preferences > Network, select the adapter, and check status. Or use online speed tests.

USER MANUAL NT-S25G Sabrent

USB TO 2.5 GIGABIT ETHERNET ADAPTER

Black SRBRENT 3.0 hard drive with USB cable and connector (no text or symbols visible on device body)

NT-S25G / USER MANUAL

System Requirements:

• Windows XP or higher.
  • Mac OS 10.4 or higher.
• Linux 2.4 or higher.

Features:

• Convert any USB Type-A or Type-C port into a standard RJ45 2.5 Gigabit Ethernet port.
• Rugged aluminum construction for durability and maximum heat dissipation.
• Up to 2.5 Gigabits per second for up to (at least) 100 meters of CAT5e cable.
  • LED indicators for connection and speed status.
• Bus-powered, eliminates the need for external power adapter.
• Fully compliant with the IEEE Standard 802.3bz (2.5GBASE-T).
• Backward compatible with slower Ethernet connections and devices.

NOTE: It is recommended to use (at least) a USB 3.0 port for maximum performance.

PACKAGE CONTENTS

Line drawing of a Siemens USB drive with port and connector (no text or symbols on the device itself)

Two technical line drawings of an electrical connector, one with a pinout and the other with a document (no text or symbols)

1. USB to 2.5Gbit Ethernet adapter with built-in cable.
2. USB Type-A to Type-C adapter.
3. User guide.

CONNECTION DIAGRAM

Diagram showing wireless network connection between a router and a laptop (no text or symbols present)

LEDS REFERENCE

Diagram of a device with a connector and internal components (no text or symbols)

#	Color Function Description
	Green	Data transfer / Network Connection	Blinking: Transferring at 10/100/1000 speeds.Solid: Working as intended.
	Orange	Data transfer / Network Connection	Blinking: Transferring at 2.5 Gigabit speeds.Solid: Working as intended.

WINDOWS INSTALLATION

This Sabrent adapter contains a read-only memory chip that holds a copy of the Windows' drivers necessary to install and use your device.

If your Windows is set to accept the “AutoPlay”* function’s commands, after connecting your Sabrent device to your PC, the following window will appear to ask for your confirmation before proceeding to install the drivers.

If your Windows is configured to ignore “AutoPlay”* commands, you will find that a virtual CD drive has been temporarily added to your computer’s list of drives.

Double-click on the virtual CD drive to start the driver's installation process and click YES to accept.

Empty rectangular frame with red border (no text or symbols)

Once the installation process is complete, the virtual CD drive will disappear.

*Autoplay is a function in Windows that will allow music files, pictures, video files, mixed content CDs, music CDs, DVD movies or HD DVD movies to automatically play when the disk, flash drive or other removable media is inserted into your computer. This function can be controlled by media type and drive.

SABRENT