Serial TTL - Ethernet module used for transparent data communication. USR-K7 can be used for bi-directional data transfer between TTL and ethernet in transparent mode. Modern replacement for older discontinued USR-K3.

€20.00 VAT excluded

€24.00 VAT included

In stock

Super Port Serial TTL UART - Ethernet Module


- compact size 35.0 x 19.39 x 18.25 mm

- support DHCP, DNS, HTTPD client, Modbus RTU and Modbus TCP

- built-in web-page

- working temperature range -40 to 85 °C


Serial ethernet module

Serial TTL - Ethernet module used for transparent data communication. USR-K7 is high performance industrial grade version of SuperPort. It is fully integrated communication module for bi-directional data transfer between TTL and ethernet in transparent mode. Unique technical solution of USR-K7 makes it suitable for integration into your products. It gives yours products to ability of network communication by ethernet. User can directly obtain data by network from device. Is it possible to achieve remote data acquisition - telemetry, remote control, management and regulation.


USR-K7 is based on Cortex-M4 solution to provide higher data rate, long-term stability and base frequency up to 120MHz.

Pin layout is compatible with older version USR-K3, USR-K3 V2 is missing pins for LED for communication indicators, these are connected inside of the module so the customer don't need to connect it externally.



- TI cortex-M4 solution, ARM kernel and TCP/IP protocol stack

- Support DNS, DHCP, Websocket and HTTPD Client

- Supports Modbus TCP to Modbus RTU

- Work mode: TCP Server, TCP Client, UDP Client, UDP Server

- Upgrade firmware via network

- Supports hardware flow control RTS/CTS and hardware Watchdog

- Support account and password, can be used to page login and network settings

- Support UDP broadcast,send and receive data from all IP in LAN

- The global unique MAC address bought from IEEE, user can define MAC address

- Support virtual serial port and provide corresponding software USR-VCOM

- Product is designed for OEM applications and it is not standalone working unit.

- Product is designed for industrial applications with emphasis for durability, functionality and robustness

- Product has CE certification for EU market

- This product is RoHS compliant


Data sheet

Designed for industry use
Way of use
Built-in O.E.M.
Network interface
Modbus support
Modbus RTU - Modbus TCP



Virtual Serial Port emulator utility

Download (24.79M)

USR-K3 AT Commands

USR-K3 AT Commands Set

Download (900.38k)

USR-K3 V2 Datasheet

USR-K3 V2 Datasheet

Download (144.64k)


Write your review

Write your review

16 other products in the same category: