Please note that we are shipping again but due to ongoing COVID-19 related restrictions in our warehouse area (Mumbai, Maharashtra), there can be a delay of 1 to 3 days in dispatch. Your support and understanding is greatly appreciated.

HLKRM04 - 5.5V 32Mb RAM 8Mb Flash UART Serial - Ethernet - WiFi Wireless Module

No reviews yet Write a Review
Evelta SKU:
Manufacturer Part Number:
₹1,170.86 inc. GST
₹992.25 ex. GST
Request a quote for higher quantities


HLK-RM04 is a new low-cost embedded UART-ETH-WIFI module (serial port - Ethernet - Wireless network) developed by Shenzhen Hi-Link Electronic co., Ltd.This product is an embedded module based on the universal serial interface network standard, built-in TCP / IP protocol stack, enabling the user serial port, Ethernet, wireless network (wifi) interface between the conversions.Through the HLK-RM04 module, the traditional serial devices do not need to change any configuration; data can be transmitted through the Internet network. Provide a quick solution for the user’s serial devices to transfer data via Ethernet.



User Manual


Extra Information

Network standard:
wireless IEEE 802.11n, IEEE 802.11g,IEEE 802.11b wired IEEE 802.3, IEEE 802.3u
Wireless transmission rate:
11n: maximum up to 150Mbps, 11g: maximum up to 54Mbps, 11b: maximum up to 11Mbps
Track numbers:
Frequency range:
Emission power:
WIFI work mode:
WDS Function:
Support WDS wireless bridge connection
Wireless security:
Wireless MAC address filtering, Wireless security function switch, 64/128/152 bit WEP encryption, WPA-PSK/WPA2-PSK,WPA/WPA2 security mechanism
Network management:
Remote Web management, Configuration file import and export, WEB software upgrade
Operating temperature:
TCP/UDP connection:
Max connection number>20
Operating humidity:
Serial baud rate:
Storage temperature:
Storage humidity:

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.