RTL8723DUwifi Bluetooth module

Linux Bluetooth WiFi module adapter RTL8723DU chip

Linux Bluetooth WiFi module adapter RTL8723DU chip. RTL8723du Bluetooth wifi two-in-one module USB interface supports Android Linux.

Wi-Fi8.CN sells Bluetooth wifi two-in-one module and other products.RTL8723DUwifi Bluetooth module - Linux Bluetooth WiFi module adapter RTL8723DU chip

RTL8723DUwifi Bluetooth module – Linux Bluetooth WiFi module adapter RTL8723DU chip


There are also more Bluetooth wifi two-in-one module related to the latest professional product parameters, real-time quotations, market quotations, high-quality commodity wholesale, suppliers and other information.

  • What is RTL8723DU?

Today Wi-Fi8.CN I will share with you what is Realtek RTL8723DU. RTL8723DU is a solution for tablet network card and wifi Bluetooth module.

Wireless module industry entry technology threshold is high, manufacturers need to have a better overall design capabilities, as well as chips, capacitors, resistors and other components integrated on the circuit board technical process, in the product performance and quality to meet the industry standards at the same time, in order to meet the needs of different downstream customers, but also need to have customized service capabilities, and with the continuous advancement of downstream industry technology, the functional integration of wireless modules is still increasing, the industry entry threshold is still increasing.WiFi6 card

Wi-Fi8.CN focuses on the R&D and production of wireless network adapter technology, WiFi module, routing module and IOT module.

Due to the recent demand for tablet network card WiFi module.

Wi-Fi8.CN recommend this WiFi module solution based on Realtek’s RTL8723DU main chip, which is fully aligned with the previous RTL8723BU, and the driver system can be re-matched to achieve the application.

The RTL8723DU WiFi module provides a USB interface to connect to the host processor and a high-speed USB interface for BT.RTL8723DU WiFi module

It also has a PCM interface for audio data transmission, directly connected to an external audio codec via a BT controller.

Using 1×1 802.11nb/g/nmimo technology, the theoretical WiFi throughput can reach 150Mbps, and Bluetooth supports BT2.1+EDR/BT3.0 and BT4.0.

  • So what exactly is RTL8723DU?

RTL8723DU is actually a small WiFi+BT combination module with small size.

With LGA (Land Grid Array) footprint, the board size is 12.2mm*12.9mm, and the module thickness is 2mm. It can be easily manufactured with the SMT process and is ideal for tablets, super books, mobile devices, and consumer products.Linux Bluetooth WiFi module adapter RTL8723DU chip

  • Linux Bluetooth WiFi module adapter RTL8723DU chip

How to use the Bluetooth WiFi module adapter of RTL8723DU chip for Linux computer system?

RTL8723DU single-channel USB interface BT4.2 Bluetooth WiFi two-in-one module, the module is mainly convenient for product integration applications, while the standardized module has strong hardware compatibility characteristics, which is convenient for direct selection and replacement. It is a third-generation USB interface Bluetooth WiFi two-in-one module.wifi+BT adapter

  • Realtek RTL8723BU VS Realtek RTL8723DU

Realtek RTL8723BU and Realtek RTL8723DU are two similar chips, both of which have the same host interface and both have a Bluetooth + Wi-Fi combination, their Wi-Fi part is similar, but there are some significant differences in the Bluetooth part between them.


Module Realtek RTL8723BU        Realtek RTL8723DU
WIFI standard iEEE 802.11 b / g / n        iEEE 802.11 b / g / n
Bluetooth standard Bluetooth 4.0 dual mode        Bluetooth 4.2 dual mode
interface        USB 2.0        USB 2.0
operating system   Android/Linux   Android/Linux
Wireless rate        Wi-Fi:

802.11b: 1, 2, 5.5, 11 Mbps

802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps

802.11n: up to 150Mbps


802.11b: 1, 2, 5.5, 11 Mbps

802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps

  802.11n: up to 150Mbps


1 Mbps base rate

  2, 3 Mbps increases the data rate

  6, 9, 12, 18, 24, 36, 48, 54 High speed with high Mbps


1 Mbps base rate

  2, 3 Mbps increases the data rate

Installation and troubleshooting of network card drivers under Linux

Network cards are the most important network devices in Linux servers. According to statistics, 35% of Linux network faults are in the physical layer, 25% in the data link layer, 10% in the network layer, 10% in the transport layer, 10% in the dialogue, 7% in the presentation layer, and 3% in the application layer.

It can be seen that network failures typically occur in the lower three layers of the seven-layer model of the network, namely the physical layer, the link layer, and the network layer.Linux Bluetooth WiFi + RTL8723DU USB WiFi Adapter

Linux Bluetooth WiFi + RTL8723DU USB WiFi Adapter


Corresponding to the actual network, that is, the network cables, network cards, switches, routers and other equipment failures.

Linux’s web implementation mimics FreeBSD, which supports FreeBSD’s extended sockets and TCP/IP protocols.

It supports network connectivity and sockets communication models between two hosts, implementing two types of sockets: BSD Sockets and INET Sockets.

It provides two transport protocols for different communication models and quality of service, namely the unreliable, message-based UDP transport protocol and the reliable, stream-based transport protocol TCP, and both are implemented on IP network protocols. INET sockets is implemented on top of the above two protocols and the IP protocol.

Because switches and routers are usually independent of Linux or other operating systems. Network card setting failure is the most common cause of Linux server failure.

It may be caused by the quality or performance of hardware, wear and tear, human misoperation, incorrect network settings, management problems, Linux software bugs, system hacker attacks, and Linux viruses.

The idea of troubleshooting Linux server network cards is that you should follow the hardware before software approach. Because if the hardware is physically damaged, then how to set the network card can not solve the failure.AC 600Mbps dual-band 2.4GHz - 5.8GHz WiFi5 wireless receiver

Linux Bluetooth WiFi Adapter


The solution to the problem can start from the network card of your own Linux computer, and if you are sure that there is no problem with the hardware, then consider the software settings.

Selection of network card

Generally speaking, the number of network card chipsets that Linux can support after version 2.4 is complete, including well-known manufacturers such as Intel and the widely used RealTek, Via and other network card chips have been supported, so users can easily set their network cards. However, due to the large number of Linux distributions (currently more than 188), it is best to check the documentation for Linux distributions before using them.

Check if the NIC is loaded:

Driver hardware is the most basic function of the operating system, the operating system through a variety of drivers to control hardware devices, and Windows system different Linux kernel currently adopts loadable modular design (LKMs Loadable Kernel Modules), that is, the most basic core code compiled in the kernel, network card drivers are dynamically loaded as kernel modules. You can use the command “lsmod” to view the load.

Regarding the choice of WiFi adapter chip for Linux system, Wi-Fi8.CN recommend that you can choose the network card with RTL8723DU chip, and you can also choose the Linux WiFi adapter RT5572 chip .


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