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Item #:
84830054
CH9121 Serial to Ethernet Network Module Ethernet Convertor Module RJ45 Microcontroller Industrial Grade SCM Networking STM32 UART
86% of respondents would recommend this to a friend
Item #:
84830054
IMP 24
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Industrial Grade SCM Networking STM32 UART Interface standard: TTL serial port, 2.54MM pin, 3.3V or 5V level
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Industrial Grade Design
Built with robust materials for reliability, the CH9121 ensures stable performance in demanding environments, making it ideal for industrial applications and long-term use.
Seamless Protocol Conversion
Easily converts serial data to Ethernet, solving connectivity issues between microcontrollers and networks with minimal configuration, thus enhancing integration in various applications.
Wide Compatibility
Supports multiple microcontroller models, allowing versatile use across various projects, ensuring developers can implement the module in diverse systems without hassle.
Product Details
| Brand | Rakstore |
| Unit Count | 1 Count |
| UPC | 763431915953 |
| Manufacturer | Rakstore |
| Mfr Part Number | Rak171316 |
| Hardware Interface | Ethernet |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 100 megabits_per_second |
| Item Weight | 0.2 lbs (90 grams) |
Who Should Buy?
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Industrial Automation
Ideal for connecting machinery and devices in industrial systems, enhancing communication through serial-to-Ethernet conversion.
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IoT Applications
Perfect for IoT enthusiasts looking to integrate serial devices into their Ethernet networks for smart automation.
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Embedded Systems
Useful for developers working with STM32 microcontrollers who need reliable network communication in their projects.
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Casual Users
Not suitable for average users without technical expertise, due to its complexity and industrial focus.
Product Description
CH9121 Serial to Ethernet Network Module Ethernet Convertor Module RJ45 Microcontroller Industrial Grade SCM Networking STM32 UART
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Is CH9121 Serial to Ethernet Network Module Ethernet Available to Shop Online in Isle of Man?
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Rakstore Serial Adapters Editorial Review
The CH9121 Serial to Ethernet Network Module is designed for reliable industrial-grade networking solutions with a robust data transfer rate of 100 megabits per second. Manufactured by Rakstore, this module features a user-friendly Ethernet interface that allows seamless conversion for microcontroller applications. The durable design ensures it withstands various industrial conditions, making it a preferred choice for many developers. Users appreciate its ease of integration, and detailed specifications such as the item weight of just 0.2 lbs highlight its compact nature, making it a suitable fit for a range of projects.
Customer Reviews & Ratings
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Pros
- High data transfer rate of 100 megabits per second
- Lightweight and compact design at 0.2 lbs
- User-friendly Ethernet hardware interface
- Robust performance in industrial conditions
- Versatile networking for microcontroller applications
Cons
- May require additional setup for novice users
Platform Trust & Buyer Confidence
BS
Beat
Verified buyer
“Simple process, tax and import duties announced by email. Paid online. Delivery was quick. Can recommend.”
22 October 2026 · via Trustpilot
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Songpon
Verified buyer
“The product met my expectations perfectly. The ordering process was convenient and easy, and I was kept updated on the delivery status throughout the shipping process. The delivery was also very fast. I can confidently confirm that Ubuy provides an excellent shopping and delivery experience. Highly recommended! From Thailand”
22 October 2026 · via Trustpilot
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Dimitra
Verified buyer
“Quick and efficient delivery and the possibility to get the package delivered from a pick-up point. I'm very happy with my experience and would recommend it again!”
22 October 2026 · via Trustpilot
HJ
Heer
Verified buyer
“My product came in good condition from the USA. I was happy that I could buy via this Chanel and that DHL brought it to my house. The communication is fine. The charger works very well. Fast and my Samsung watch and Samsung airbuds and Samsung Fold 8 Ultra all charge fast.”
22 October 2026 · via Trustpilot
SF
Sergey
Verified buyer
“Hello Ubuy team, thank you so much for the excellent service! I received the package today; it arrived in great condition and was packed very neatly. The delivery was fast, and the courier was very friendly as well. Wishing continued success to Ubuy and the entire team!”
23 October 2026 · via Trustpilot
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Features & Benefits
- Industrial Grade SCM Networking STM32 UART Interface
- Standard TTL serial port with 2.54MM pin
- Supports 3.3V or 5V level
- Baud rate range: 300 ~ 921600bps
- LAN Ethernet speed: 10 / 100Mbps
- Network protocols: IP, ARP, TCP, UDP, ICMP, IGMP, DHCP
- Protection with 2KV electromagnetic isolation
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