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6221C-PUC Wi-Fi Module

RTL8821CE 5G Wi-Fi
BT5.0/ BLE5.0
12.0 X 16.0mm
Contact us for HDK, SDK and EVB
Pre-certification available: CE, FCC, SRRC, BQB, NCC, KCC
  • 6221C-PUC

  • Fn-Link

  • 2.4G+5G 

  • BT5.0 and above 

  • Realtek 

  • 1T1R 

  • Select 

  • PCIe Interface 

Product Name

RTL8821CE Wi-Fi Module 6221C-PUC


5G Wi-Fi



BT5.0/ BLE5.0

12.0 X 16.0mm

Details Information


Fn-Link Technology would like to announce a low-cost and low-power consumption module which has all of the Wi-Fi functionalities. It is a highly-integrated IEEE 802.11 a/b/g/n/ac MAC/Baseband/RF WLAN single chip. For Wireless LAN(WLAN)operation. The integrated module provides PCI-e interface for Wi-Fi . The module provides simple legacy and 20MHz/40MHz/80MHz co-existence mechanisms to ensure backward and network compatibility. 

The wireless module complies with IEEE 802.11 a/b/g/n/ac 1x1 SISO standard and it can achieve up to a speed of 433Mbps to connect the wireless LAN. The integrated module provides PCI-e interface for Wi-Fi, USB/ PCM interface for Bluetooth. 

This compact module is a total solution for a combination of Wi-Fi and Bluetooth V5.0 technologies. The module is specifically developed for all portable devices.



Highly integrated wireless local area network(WLAN) system-on-chip (SOC) for 5 GHZ 802.11ac, or 2.4G/5G 802.11n WLAN applications. 

Supports 20/40MHz at 2.4GHz and supports 20/40/80MHz at 5GHz. 

Supports Bluetooth for class1 and class2 power level transmissions without requiring an external PA. 

 -VC chipset support Mordern standby feature. 

Host Interface 

Supports low power PCI-e interface for WLAN and USB/PCM interface for Bluetooth.

Bluetooth Features 

Supports Bluetooth V5.0. 

Support bluetooth 4.2system, compatible with BT v2.1+EDR. 

Support BT5.0 High duty cycle non-connectable advertising. 

Support BT 4.0 dual mode:simultaneous LE and BR/EDR. 

Supports WLAN-Bluetooth coexistence and ISM-LTE coexistence. 

BT host digital interface: 


-PCM for audio data


OTT/IPTV/DVB/Set-top Box, Tablet PC, Advertising Machine,Intelligent TV, IPC/NVR, Industrial Control Equipment,Car Recorder,Intelligent Doorbell, Intelligent Projector, Virtual Reality, VR/AR, Wireless Storage, Printer, POS Machine, Electronic Scale,Vehicle Front/Rear End, Drone, Robot, HDMI Transmitter,Smart Gateway, Education,Toys, Lighting Lamps, Intelligent Street Light, Intelligent Home Appliances/Home Appliances Instrumentation (Water, Electricity, Gas), Smart City and other Consumer Electronic Products.

 Block Diagram 

【FG6221CPUC-00 / FG6221CPUC-01】

6221C-PUC module


6221C-PUC module


Model No. 6221C-PUC Main Chipset RTL8821CE

Wi-Fi: PCIe


Wi-Fi Standard IEEE 802.11a/b/g/n/ac+BLE5.0
Data Rate 433Mbps Certification RoHS,REACH
RF Antenna On-board Antenna OS Supported Android /Linux/ Win CE /iOS /XP/WIN7/WIN10

Operating Frequency

2.4G:2.400GHz~2.497GHz(2.4G ISM Band)

5.8G:4.900GHz~5.845GHz(5.0G ISM Band)

Operating Voltage


Dimension L16 * W12 * T1.8 mm RF Chain 1T1R
Operating Temperature 0°C to 70°C Storage Temperature -55°C to 85°C

 Ordering Information 

Part No. Description
FG6221CPUC-00 RTL8821CE-VC,802.11a/b/g/n/ac +BLE5.0, 1T1R, 12*16, PCIe/USB
FG6221CPUC-01 RTL8821CE-CG,802.11a/b/g/n/ac+BT5.0,1T1R,12*16, PCIe/USB

RTL8821CE-VC,802.11a/b/g/n/ac +BLE5.0, 1T1R, 12*16, PCIe/USB,single antenna.



 14th Floor, Block B, Phoenix Zhigu, No.50 Tiezai Road, Gongle Community, Xixiang Street,
Baoan District, Shenzhen, China 518000

 +86-755-2332 9312

FN-LINK TECHNOLOGY LIMITED is mainly engaged in the R&D, production and sales of wireless communication modules and system solutions, peripheral equipment, and audio-visual equipment

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