Realtek device drivers for Windows

Realtek driver for RTL8821CU and Windows 8.1 64bit

A complete list of available bluetooth device drivers for Realtek RTL8821CU. On this page, you will find all available drivers listed by release date for the Windows 8.1 64bit operating system. From the following list, select any driver and try it on your device.

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Version

1.3.887.2

OS Windows 8.1 64bit
Release 2017-06-06 [June '17]
Status WHQL signature
File bt-1.3.887.2-win81.zip
Downloaded 150×

Drivers for / Treiber für / Драйверы для / Ovladače pro / Sterowniki do

  • Realtek Bluetooth 4.0 Filter Driver for Windows 8.1 (32/64bit)
  • More info
    • Realtek Bluetooth Filter Driver for Windows 8.1 (32/64bit).
    • Intended for: RTL8192EU/RTL8761AW, RTL8723AU, RTL8723DE, RTL8723DU, RTL8761, RTL8821CE, RTL8821CU.
    • Devices are detected as:
    • - Realtek Bluetooth 4.0 Adapter
    • - Realtek Bluetooth Adapter
Download driverfor RTL8821CU

Latest Windows 10 64bit drivers

Version Date DNL
10.0.26100.21383 2025-06-11 53×
6102.24.108.335 2025-06-05
1153.18.0305.2025 2025-03-13
1.11.4024.3 2025-03-07
1.10.1072.3 2025-02-27 44×

Latest Windows 11 64bit drivers

Version Date DNL
10.076.0514.2025 2025-07-15
10.0.26100.21383 2025-06-11 53×
6102.24.108.335 2025-06-05
1153.18.0305.2025 2025-03-13
1.11.4024.3 2025-03-07

Latest Realtek PDF's

PDF Datasheet Date
RTL8722 2021-08-03
RTL8721 2021-08-03
RTL8125 2020-07-22
RTL8720 2019-04-24
RTL8671 2019-04-10

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