NT-25GA - Network card / adapter Sabrent - Free user manual and instructions

Product Type	Network Adapter
Brand	Sabrent
Model	NT-25GA
Interface	USB 3.0 Type-A
Network Standard	IEEE 802.3, 802.3u, 802.3ab
Data Transfer Rate	10/100/1000 Mbps
Connector	RJ45 Ethernet
Chipset	Realtek RTL8153
Cable Length	30 cm (USB cable)
Dimensions	7.5 x 2.5 x 1.5 cm
Weight	30 g
Power Source	USB bus-powered
LED Indicators	Link / Activity
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 70°C
Operating Systems Supported	Windows, macOS, Linux, Chrome OS
Plug and Play	Yes (drivers included)
Compliance	FCC, CE, RoHS
Maintenance	Wipe with a dry cloth
Safety Precautions	Avoid liquids, keep away from heat
Spare Parts	Not replaceable
Repairability	Non-repairable, replace unit

Frequently Asked Questions - NT-25GA Sabrent

What operating systems are supported by the Sabrent NT-25GA?

The Sabrent NT-25GA supports Windows, macOS, Linux, and Chrome OS. It is plug-and-play with drivers included.

Does the NT-25GA support gigabit speeds?

Yes, it supports 10/100/1000 Mbps (Gigabit Ethernet) and is backward compatible with slower networks.

Is the NT-25GA compatible with USB 2.0 ports?

Yes, it works with USB 2.0, but speeds will be limited to USB 2.0 bandwidth (up to 480 Mbps). For full gigabit speed, use a USB 3.0 port.

Does this adapter require external power?

No, it is bus-powered via the USB port. No external power supply is needed.

Can I use the NT-25GA with a USB-C port?

If your device has USB-C, you will need a USB-C to USB-A adapter (not included). The adapter itself has a USB-A connector.

What chipset does the NT-25GA use?

It uses the Realtek RTL8153 chipset, which is widely supported and reliable.

How do I install the drivers?

On most systems, drivers install automatically via Windows Update or built-in OS drivers. If needed, they can be downloaded from the Sabrent website.

Does the adapter work with gaming consoles?

It should work with devices that support USB Ethernet adapters, such as the Nintendo Switch (docked) or PlayStation (for network setup).

What is the maximum cable length for the Ethernet side?

The adapter has a standard RJ45 port that supports cables up to 100 meters (for proper Ethernet specs).

How do I clean the NT-25GA?

Disconnect the adapter and wipe it with a soft, dry cloth. Do not use liquids or abrasive cleaners.

USER MANUAL NT-25GA Sabrent

USB-C TO 2.5 GIGABIT ETHERNET ADAPTER

Close-up of a SABRENT device with a USB cable and connector port (no text or symbols visible on the device body)

FEATURES

• Convert any USB Type-C port into a standard RJ-45 2.5 Gigabit Ethernet (2.5GbE) port
• Provides speeds of up to 2.5Gbps for up to at least 100 meters with Cat 5e-compliant or better cabling
• Fully compliant with the IEEE 802.3bz (2.5GBASE-T) standard with UEFI PXE boot support for compatible systems
  • Backward compatible with slower Ethernet connections, devices, and cables
• Rugged aluminum construction for durability and maximum heat dissipation
• Bus-powered, eliminating the need for external power adaptors
  • LED indicators for connection and speed status

• USB-C to 2.5 Gigabit Ethernet Adapter
- User manual

PRODUCT OVERVIEW

A. Integrated USB-C cable for host connectivity
B. RJ-45 port for Ethernet connection to network device
C. Green and orange LEDs for connection speed and data transfer status

LED STATUS INDICATORS

#	Color	Function	Description
1	Green	Data transfer/ Network connection	Blinking: transferring at 10/100Mbps speedsOn: operational
1/2	Orange/Green	Data transfer/ Network connection	Synchronized blinking: transferring at 1 Gigabit speedsOn: operational
2	Orange	Data transfer/ Network connection	Blinking: transferring at 2.5 Gigabit speedsOn: operational

GETTING STARTED

Simple line drawing of a laptop computer with blank screen and base (no text or symbols)

Step 1. Connect the USB-C Ethernet adapter to the host system.

Illustration of a USB cable with a connector (no text or symbols)

Step 2. Connect a CAT5e or better, quality network cable into the RJ-45 port.

Step 3. The adapter should work as plug and play. If your host operating system or UEFI requires a driver for the adapter, it may be downloaded from Realtek's website (https://www.realtek.com/en/downloads).

Step 3b. The driver is listed on Realtek's website under USB 2.5GbE as RTL8156 / RTL8156B with driver support for Windows, macOS, UEFI, and Linux. After downloading the appropriate version, proceed through the installation process and click "Finish." You may then start using your device.

Step 3c. Optionally, download Realtek's Dragon Intelligent Bandwidth Control Software for additional features from Sabrent.com. These additional features include bandwidth management and traffic prioritization.

FREQUENTLY ASKED QUESTIONS

Q. Do I have to do anything special to get this adapter to work?

A. Your operating system should automatically provide working drivers for the adapter and updates will be pushed as necessary. This adapter uses the Realtek 8156BG network adapter chipset which fixes the problems associated with earlier revisions. It is, however, possible to get drivers for the chipset (RTL8156 / RTL8156B) from Realtek if necessary.

Q. Does this adapter have any additional features?

A. This adapter supports the Realtek Dragon Intelligent Bandwidth Control Software (Realtek Dragon Utility or "Dragon Feature"). Please review Realtek's guide for proper use of this software. The software allows for intelligent management of system bandwidth through the prioritization of specific applications and the monitoring of network traffic characteristics.

Q. How do I improve VPN performance?

A. Please make sure you have the newest driver version installed. If you are using IKEv2 and still have performance issues, please set receiver buffers to 128 and receive URBs (USB Request Blocks) to 64, then transmit buffers to 64 and transmit URBs to 32. This should optimize the connection.

Q. What's the actual maximum transfer rate of the adapter?

A. Performance is given in bits, so 2.5Gbps equates to a theoretical maximum of 312.5MBps. Actual transfer speeds will depend on your host and network hardware, overhead, and the type of transfer.

SABRENT

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