SABRENT USB 3.0 to 2.5 Gigabit Ethernet Adapter – USB-A to 2.5GbE Network Adapter, Aluminum Housing, Plug-and-Play, Backward Compatible with 10/100/1000/2500 Mbps, Bus Powered (NT-UA25)









Price: $24.99
(as of Feb 08, 2026 03:57:04 UTC – Details)
Product description

SABRENT USB-A 3.0 to 2.5GbE Ethernet Adapter – High-Speed, Plug-and-Play Upgrade
Bypass unreliable Wi-Fi with a stable and fast 2.5Gbps wired connection for smoother online experiences. Enhance your access to servers, media libraries, and cloud platforms, especially when transferring large files. Backwards compatible with 10/100/1000Mbps networks and USB 2.0 ports, this adapter is a flexible upgrade for any setup.
Powered by the reliable RTL8156BG chipset, it delivers consistent performance across a wide range of environments. Durable aluminum housing provides superior heat dissipation, making it ideal for prolonged transfers and mobile use. With support for 2.5Gbps speeds over 100 meters (with CAT 5e or better cabling), this adapter enables high-throughput networking without compromise.
Bus-powered and plug-and-play, it’s easy to use—just connect and go. Status LEDs provide instant feedback for link and activity. Compatible with a wide range of platforms, including Windows 11/10/8.1/8/7, macOS 10.9+, Linux 3.2+, and Chrome OS. No drivers needed for most systems.
This adapter is ideal for desktops, laptops, servers, docking stations, and NAS. Whether you’re streaming, gaming, video conferencing, or working remotely, it ensures a reliable connection every time.
Backed by SABRENT’s commitment to quality, this USB-A to 2.5GbE adapter is your trusted solution for faster, more stable, and future-ready wired connectivity.

Reliable 2.5GbE Performance Anywhere
Experience up to 2.5Gbps Ethernet with stable, plug-and-play connectivity for laptops, desktops, and servers.

Ready When You Are – Plug-and-Play
Instantly upgrade your wired networking with native OS support and no drivers required.
Watch It In Action – Speed Meets Simplicity
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. SABRENT USB-A to 2.5GbE Adapter – Fast Ethernet Merchant Video
See how the SABRENT USB 3.0 to 2.5GbE adapter improves your workflow and upgrades legacy systems with ease.
Technical Specifications
Model NT-UA25 Interface USB-A 3.0 (USB 3.2 Gen 1×1) Ethernet Port RJ-45, 2.5GbE (10/100/1000/2500 Mbps) Chipset Realtek RTL8156BG Standards IEEE 802.3, 802.3u, 802.3ab, 802.3bz Max Speed Up to 2.5Gbps Cable Support CAT 5e or better Power Source Bus-powered (no external power required) LEDs Link/Activity indicators Compatibility Windows, macOS, Linux, Chrome OS Backward Compatibility USB 2.0, 1GbE, 100Mbps, 10Mbps Dimensions 2.68 x 1.06 x 0.59 in (68 x 27 x 15 mm) Weight 0.88 oz (25g) Housing Material Aluminum alloy Plug-and-Play Yes Certifications FCC, CE, RoHS
Is this adapter compatible with my USB-C-only laptop?
This model uses USB-A. For USB-C-only devices, use a USB-C to USB-A adapter, or select our dedicated USB-C 2.5GbE model NT-25GA.
What type of cable do I need for 2.5Gbps speeds?
Use CAT 5e or better (CAT 6, 6a, 7, or 8) to achieve full 2.5GbE speeds up to 100 meters.
Does this adapter require any drivers?
No drivers are required for most OS versions (Windows/macOS/Linux). It’s plug-and-play in nearly all cases.
Will it work with a docking station or USB hub?
Yes, as long as the hub supports USB 3.0 and provides adequate bandwidth and power.
What chipset is used in this adapter?
It uses the Realtek RTL8156BG chipset, ensuring wide compatibility and stable 2.5Gbps operation.
Consistent 2.5GbE Performance: nstantly upgrade any system with a reliable, high-speed 2.5 Gigabit Ethernet connection via USB Type-A. Achieve faster, more stable network transfers than Wi-Fi or legacy Ethernet.
RTL8156BG Chipset Advantage: Built with the premium Realtek RTL8156BG controller for ultra-fast, low-latency performance with reduced CPU load. Optimized for multi-gigabit networks and modern workloads.
Broad Compatibility & Plug and Play: Works seamlessly with Windows, macOS, Linux, ChromeOS, and Android — no driver installation needed on most systems. Easily connect desktops, laptops, tablets, and more.
Full-Speed at Long Distance: Compliant with 802.3bz (2.5GBASE-T) standards for up to 2.5Gbps speeds over 100m+ using CAT 5e or better cabling. Also backward compatible with 10/100/1000 Mbps networks.
Durable & Travel-Ready: Lightweight aluminum alloy housing ensures excellent heat dissipation and long-term durability. Compact and bus-powered with LED indicators for quick status checks.