Bluetooth
Realtek supplies the Bluetooth radios in many mainstream laptops, budget desktops, and inexpensive USB dongles. The part is usually paired with a Realtek Wi-Fi controller on the same module, and the validated driver tends to reach you through the PC or motherboard maker rather than as a universal Realtek download. When sourcing a package, match it to the system or board that carries the radio rather than picking a generic Realtek file.
Documented for: Windows 10, Windows 11
Bluetooth radios in many systems and USB dongles; the validated build often ships through your PC or board maker.
Read the full family referenceAudio & Sound
This is a widely used onboard audio codec family for consumer motherboards and laptops, driving analog jacks and internal speakers on supported systems. It reports itself under "Sound, video and game controllers" and may pair with a vendor control panel for jack retasking and equalization. Because system builders tune audio for their own speakers and firmware, laptop and prebuilt owners should check the customized package from their computer maker rather than assume a generic package is compatible.
Documented for: Windows 10, Windows 11
Onboard codec used by many PCs; laptop and prebuilt owners should check the OEM-customized package from their computer maker.
Read the full family referenceEthernet & LAN
This is the multi-gig sibling of Realtek's gigabit part, found on newer motherboards that offer a 2.5 Gbps wired port. It falls back cleanly to 1 Gbps on older switches, so reaching its full rate requires 2.5 Gbps-capable networking gear and adequate cabling end to end. If the port negotiates at gigabit when you expect more, check the switch and cable before the driver, since the controller itself will step down automatically.
Documented for: Windows 10, Windows 11
2.5 Gigabit controller found on newer motherboards.
Read the full family referenceEthernet & LAN
This is the single most common wired-LAN controller in consumer computing, integrated on a huge range of desktop boards and laptops as the standard gigabit port. It handles link negotiation up to 1 Gbps along with the usual offload and power-saving features. Because the same chip sits behind so many brand names, read the exact controller string in Device Manager, then on a branded machine fetch the version your PC maker validated rather than a bare Realtek build.
Documented for: Windows 10, Windows 11
Common integrated gigabit LAN on many desktops and laptops.
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Realtek's PCIe Ethernet controllers, in gigabit and 2.5G forms, are among the most widely used wired network chips on consumer motherboards and laptops. Windows usually loads a basic driver automatically, but the validated build from your PC or motherboard maker can fix link stability on the newer 2.5G parts. For a 2.5G port to reach full speed, the cable and switch must also support that rate.
Documented for: Windows 10, Windows 11
Widely used wired controllers; the validated build often ships through your PC or motherboard maker.
Read the full family referenceCard Readers
This is the host controller behind the memory-card slot on a large share of laptops and all-in-one desktops. It handles card detection, speed negotiation, and how the slot recovers from sleep, which is why the right driver matters even though the slot looks simple. On a branded machine, treat the Realtek name only as a clue; the version to install is the one your PC maker validated for that model, not a generic Realtek download, because the OEM build carries the power-management tuning the slot needs.
Documented for: Windows 10, Windows 11
Common integrated laptop reader controller. On a laptop or prebuilt PC, prefer the OEM's matched version over a generic download.
Read the full family referenceAudio & Sound
Realtek USB Audio covers the codec inside many USB headsets, speaker bars, and small audio dongles that connect over a USB port rather than an analog jack. Windows can usually run these devices with its built-in class driver the moment they are plugged in, so the Realtek package mainly matters when a device exposes extra controls. Expect these to appear under "Audio inputs and outputs" and under USB when connected.
Documented for: Windows 10, Windows 11
Common in USB headsets and audio dongles; some devices use the class-compliant driver built into Windows.
Read the full family referenceEthernet & LAN
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.
Documented for: Windows 10, Windows 11
Used by many USB and dock-based Ethernet adapters.
Read the full family referenceVirtual Devices
Some Realtek audio packages register a virtual output endpoint so software can route or mix sound without a second physical device. Because it is part of the Realtek audio driver, this endpoint is installed and updated with that driver, often supplied by your PC or motherboard maker. If sound goes to the wrong place, it is usually a default-device choice rather than a broken driver.
Documented for: Windows 10, Windows 11
Some audio packages register virtual output endpoints.
Read the full family referenceNetwork & Wi-Fi
Realtek wireless LAN adapters appear in many budget and mainstream laptops and in a large number of USB Wi-Fi dongles. The driver governs the same roaming and power behavior as any wireless part, and on a laptop the OEM build tuned for that model tends to be steadier than a generic one. For USB dongles, the adapter maker's driver for that specific chipset is the correct source.
Documented for: Windows 10, Windows 11
Wireless adapters in many systems and USB dongles; laptop users should prefer the OEM package.
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