Realtek USB GbE Family Controller

This controller powers a large share of USB dongles and dock-based Ethernet ports rather than a soldered motherboard NIC. Because it rides on a USB or Thunderbolt link, its dependability depends partly on the host port and, on a dock, the dock's own firmware and USB stack. When such an adapter drops out, update the dock firmware and USB controller driver first, then this adapter driver, and try a port directly on the PC to rule the dock out.

Ethernet & LAN reference

Family profile

Reference coverage: Varies by exact controller, hardware revision, system or board package, and release; verify the official support page
Hardware category: Ethernet & LAN
Manufacturer: Realtek
Related families listed: 14 in this category, 7 elsewhere from Realtek

This coverage label describes releases discussed by this publication, not certified compatibility. Confirm the exact device or PC model, hardware revision, current Windows release, and current package requirements on the publisher source before making a change. Windows 10 Home and Pro reached end of support on October 14, 2025. Extended security updates and other editions have separate lifecycle terms; a driver listing does not extend Windows support.

Realtek USB GbE Family Controller at a glance

Detail	What it means for you
Controller class	USB or dock-based gigabit adapter
Max link speed	1 Gbps full duplex
Bus and port	USB or Thunderbolt, external RJ-45
Driver source	Exact adapter or dock maker listing; identify the controller
Stability watch	Test directly to separate adapter, port, and dock behavior
Common failure mode	Adapter, host port, cable, dock, or driver can be involved

A quick read on what this family is and what to expect from its driver package.

How to tell this is what you have

Reads as Realtek USB GbE Family Controller
Backs a USB dongle or dock Ethernet port
Appears and disappears with the USB or dock connection

Worth knowing: Used by many USB and dock-based Ethernet adapters.

Device Driver Guide does not host driver files or bundle an updater. This page documents the Realtek USB GbE Family Controllerfamily; its citations are selected from the package-source policy recorded for this family.

Official links, no hosted downloads

Device Driver Guide hosts no executables or updater tools. External citations are limited to official publisher documentation pages and are labeled before you leave this site.

Browse related families

Open the listed ethernet & lan directory

View all listed Realtek families

Full Ethernet & LAN reference

Useful guides

Package path for Realtek USB GbE Family Controller

The family record names Exact adapter or dock maker listing; identify the controller as the package source. Use Varies by exact controller, hardware revision, system or board package, and Windows release; verify the official support page only as reference coverage, then check the current publisher requirements for the exact model, hardware revision, Windows release, and PC configuration. A family name alone does not establish compatibility.

Shared identification, preparation, installation, verification, and rollback procedures are maintained on the full ethernet & lan guide, rather than repeated on every family page. The citations below follow this family’s declared vendor, system-update, PC-maker, or motherboard-maker source policy.

Official sources and citations

These links serve two different purposes. A manufacturer support selector helps you find an exact model, but does not prove that a package or feature exists for every product in a family. Claim-specific documents explain the cited technology, requirement, lifecycle, or bounded package example. In either case, check the publisher domain, exact model and hardware revision, operating-system release, supported-products list, and package notes before making a change.

Realtek downloads and documentation
Realtek: Use this publisher-maintained page to match the exact Realtek model and operating-system release before selecting a package.
Windows 10 Home and Pro lifecycle
Microsoft Lifecycle: Lifecycle documentation for Windows 10 Home and Pro; separately governed editions and servicing channels can have different dates.
Realtek USB network-controller downloads
Realtek: USB controller-family selector; match the exact controller, adapter or dock model, and OS.

Device Driver Guide is an independent reference, not a repair or technical-support service. It does not host or mirror installers and receives no payment for these links. A named-model package example applies only to the systems and operating systems on that publisher page; it is not a recommendation to install the package across a family. Report a moved or incorrect link through the correction form.

Other ethernet & lan families to compare

Realtek USB GbE Family Controller next to the other 14 families in this category

Family	Manufacturer	Reference coverage	How you recognize it
Realtek USB GbE Family Controller (this page)	Realtek	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Realtek USB GbE Family Controller
Realtek PCIe GbE Family Controller	Realtek	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Realtek PCIe GbE Family Controller in Device Manager
Realtek PCIe 2.5GbE Family Controller	Realtek	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Realtek PCIe 2.5GbE Family Controller
Intel Ethernet Connection I219	Intel	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Intel Ethernet Connection I219 in Device Manager
Intel Ethernet Controller I225-V	Intel	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Intel Ethernet Controller I225-V
Intel Ethernet Controller I226-V	Intel	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Intel Ethernet Controller I226-V
Intel Ethernet Server Adapter I210	Intel	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Reads as Intel Ethernet Server Adapter I210
Dell Integrated LAN (OEM package)	Dell	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Delivered as a Dell package matched to a Service Tag
HP Integrated Network Adapter (OEM package)	HP	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Located by HP product or serial number
Lenovo Integrated Ethernet (OEM package)	Lenovo	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Matched by Lenovo machine type and model
ASUS Motherboard LAN Driver (OEM package)	ASUS	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Downloaded from a specific ASUS motherboard support page
MSI Motherboard LAN Driver (OEM package)	MSI	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Selected by exact MSI board model and revision
Gigabyte Motherboard LAN Driver (OEM package)	Gigabyte	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Chosen by exact Gigabyte or Aorus board model and revision
ASRock Motherboard LAN Driver (OEM package)	ASRock	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Found on the specific ASRock board's support page
Acer Integrated LAN (OEM package)	Acer	Varies by exact controller, hardware revision, system or board package, and release; verify the official support page	Located by Acer model or serial number

Use this when you are not certain which family your hardware belongs to.

Other Realtek families in the catalog

Realtek hardware documented outside ethernet & lan

Family	Category	Reference coverage
Realtek High Definition Audio Codecs	Audio & Sound	10, 11
Realtek USB Audio	Audio & Sound	10, 11
Realtek PCIe Gigabit and 2.5G Ethernet	Network & Wi-Fi	Varies by exact adapter, system or board model, package, and release; verify the official support page
Realtek Wireless LAN Adapters	Network & Wi-Fi	Varies by exact adapter, system or board model, package, and release; verify the official support page
Realtek Bluetooth Adapters	Bluetooth	Varies by exact radio or peripheral model, package, and release; verify the official support page
Realtek PCIe/USB Card Reader Controller	Card Readers	10, 11
Realtek Virtual Audio Endpoint (companion feature)	Virtual Devices	10/11 only where the exact PC/board audio package lists it

The same manufacturer often ships several unrelated device classes, each with its own package.