Proprietary Products
Proprietary Wireless Protocols for Sub-GHz and 2.4 GHz
Our proprietary wireless portfolio ranges from transceivers to multi-band wireless SoCs for IoT applications. Our devices offer ultra-low power, longest range, up to 20 dBm output power and several modulation schemes, while covering major frequency bands. Our Dynamic Multi-protocol (DMP) enables smartphone connectivity to long-range solutions, and easy to use SDKs accelerate proprietary protocol development.
Sub-GHz SoC and Module Selector Guide
Our Sub-GHz SoC and Module Selector Guide provides you with a quick, comparative overview of our portfolio to help you select the ideal SoC or module for your next project.
Our FG25 SoC Enables Landis+Gyr Smart Meters
Discover how Landis+Gyr is taking smart metering to new heights with our FG25, the first integrated Sub-GHz SoC that supports the latest Wi-SUN features.
Tech Talks: Unbox the xG28 Wireless SoC Family
Explore the new xG28 SoC family with our experts, featuring its secure dual-band Sub-GHz and 2.4 GHz Bluetooth LE capabilities, AI/ML hardware accelerator, and more.
Hardware
Kits and Boards
Software and Tools
Applications
Learn About Proprietary
Hardware
Kits and Boards
SLWSTK6007A | Wi-SUN Wireless Starter Kit | MSRP $573.00 | Buy Now | |
SLWSTK6021A | EFR32xG22 Wireless Gecko Starter Kit | MSRP $193.00 | Buy Now | |
SLWSTK6060B | EFR32FG 915 MHz 2.4 GHz and Sub-GHz Starter Kit | MSRP $373.00 | Buy Now | |
SLWSTK6061B | EFR32FG 868 MHz 2.4 GHz and Sub-GHz Starter Kit | MSRP $386.00 | Buy Now | |
SLWSTK6062B | EFR32FG 490 MHz 2.4 GHz and Sub-GHz Starter Kit | MSRP $391.00 | Buy Now | |
SLWSTK6063B | EFR32FG 434 MHz 2.4 GHz and Sub-GHz Starter Kit | MSRP $396.00 | Buy Now | |
SLWSTK6065B | EFR32FG 169 MHz 2.4 GHz and Sub-GHz Starter Kit | MSRP $404.00 | Buy Now | |
SLWSTK6220A | EZR32WG 868 MHz Wireless Starter Kit | MSRP $377.00 | Buy Now | |
SLWSTK6221A | EZR32WG 434 MHz Wireless Starter Kit | MSRP $299.00 | Buy Now | |
SLWSTK6222A | EZR32WG 915 MHz Wireless Starter Kit | MSRP $391.00 | Buy Now | |
SLWSTK6240A | EZR32HG 868 MHz Wireless Starter Kit | MSRP $395.00 | Buy Now | |
SLWSTK6242A | EZR32HG 915 MHz Wireless Starter Kit | MSRP $406.00 | Buy Now |
FG25-PK6011A | EFR32FG25 902-928 MHz +16 dBm Pro Kit | MSRP $210.00 | Buy Now | |
FG25-PK6012A | EFR32FG25 863-876 MHz +16 dBm Pro Kit | MSRP $213.00 | Buy Now | |
WI-SUN-PK6015A | EFR32FG25 Wi-SUN 863-876 MHz +16 dBm Pro Kit | MSRP $635.00 | Buy Now | |
WI-SUN-PK6016A | EFR32FG25 Wi-SUN 902-928 MHz +16 dBm Pro Kit | MSRP $625.00 | Buy Now | |
XG23-PK6067A | EFR32xG23 Pro Kit +14 dBm | MSRP $202.00 | Buy Now | |
XG23-PK6068A | EFR32xG23 Pro Kit +20 dBm | MSRP $203.00 | Buy Now | |
XG28-PK6024A | EFR32xG28 Pro Kit +14 dBm | MSRP $179.00 | Buy Now | |
XG28-PK6025A | EFR32xG28 Pro Kit +20 dBm | MSRP $179.00 | Buy Now |
1060-915-DK | Si1060/80 915 MHz Wireless MCU Development Kit | MSRP $385.71 | Buy Now | |
1064-434-DK | Si1064/84 434 MHz Wireless MCU Development Kit | MSRP $385.71 | Buy Now | |
4010-AESK1W-315 | Si4010/Si4355 315 MHz One-Way AES Development Kit | MSRP $162.00 | Buy Now | |
4010-AESK1W-434 | Si4010/Si4355 434 MHz One-Way AES Development Kit | MSRP $90.00 | Buy Now | |
4010-AESK1W-915 | Si4010/Si4355 915 MHz One-Way AES Development Kit | MSRP $115.00 | Buy Now | |
4010-KFOBDEV-434 | Si4010/Si4355 434 MHz Key Fob Development Kit | MSRP $297.00 | Buy Now | |
4010-KFOBDEV-868 | Si4010/Si4355 868 MHz Key Fob Development Kit | MSRP $311.00 | Buy Now | |
4010-KFOBDEV-915 | Si4010/Si4355 915 MHz Key Fob Development Kit | MSRP $335.00 | Buy Now | |
4012-LCDK1W-434 | Si4012/Si4355 434 MHz One-Way LCD Development Kit | MSRP $256.00 | Buy Now | |
4012-LCDK1W-915 | Si4012/Si4355 915 MHz One-Way LCD Development Kit | MSRP $274.00 | Buy Now | |
4455C-434-PDK | EZRadio Si4455 434 MHz Wireless Development Kit | MSRP $294.00 | Buy Now | |
4455C-868-PDK | EZRadio Si4455 868 MHz Wireless Development Kit | MSRP $325.00 | Buy Now | |
4455C-915-PDK | EZRadio Si4455 915 MHz Wireless Development Kit | MSRP $294.00 | Buy Now | |
4461C-868-PDK | EZRadioPRO Si4461 868 MHz Wireless Development Kit | MSRP $409.81 | Buy Now | |
4463C-915-PDK | EZRadioPRO Si4463 915 MHz Wireless Development Kit | MSRP $409.81 | Buy Now | |
EZR-LEDK2W-434 | EZRadio Si4455 434 MHz Two-Way Sub-GHz Key Fob to LED Development Kit | MSRP $99.00 | Buy Now | |
EZR-LEDK2W-868 | EZRadio Si4455 868 MHz Two-Way Sub-GHz Key Fob to LED Development Kit | MSRP $99.00 | Buy Now | |
EZR-LEDK2W-915 | EZRadio Si4455 915 MHz Two-Way Sub-GHz Key Fob to LED Development Kit | MSRP $179.00 | Buy Now | |
FG23-DK2600A | EFR32FG23 868-915 MHz +14 dBm Dev Kit | MSRP $88.00 | Buy Now | |
MSC-AMS434-EK | 434 MHz Antenna Matrix Development Kit | MSRP $93.53 | Buy Now | |
MSC-AMS868-EK | 868 MHz Antenna Matrix Development Kit | MSRP $93.53 | Buy Now | |
MSC-AMS915-EK | 915 MHz Antenna Matrix Development Kit | MSRP $93.53 | Buy Now | |
MSC-F930-PDK | EZRadioPRO Wireless Motherboard Development Kit | MSRP $272.75 | Buy Now |
EZR-LEDK1W-434 | EZRadio Si4010/Si4355 434 MHz One-Way Sub-GHz Key Fob to LED Reference Design | MSRP $111.00 | Buy Now | |
EZR-LEDK1W-868 | EZRadio Si4010/Si4355 868 MHz One-Way Sub-GHz Key Fob to LED Reference Design | MSRP $60.00 | Buy Now | |
EZR-LEDK1W-915 | EZRadio Si4010/Si4355 915 MHz One-Way Sub-GHz Key Fob to LED Reference Design | MSRP $96.00 | Buy Now |
FG23-RB4265B | EFR32FG23 433 MHz +10 dBm Radio Board | MSRP $56.00 | Buy Now | |
FG25-RB4270B | EFR32FG25 902-928 MHz +16 dBm Radio Board | MSRP $62.00 | Buy Now | |
FG25-RB4271A | EFR32FG25 863-876 MHz +16 dBm Radio Board | MSRP $64.00 | Buy Now | |
FG25-RB4272A | EFR32FG25 470 MHz +16 dBm Radio Board | MSRP $75.00 | Buy Now | |
FGM230-RB4328A | FGM230S 868-915 MHz +14 dBm Secure Vault™ High Radio Board | MSRP $49.00 | Buy Now | |
FGM230-RB4328B | FGM230S 868-915 MHz +14 dBm Secure Vault™ Mid Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4182A | EFR32xG22 Wireless Gecko 2.4 GHz +6 dBm 5x5, QFN40 Radio Board | MSRP $29.00 | Buy Now | |
SLWRB4183A | EFR32xG22 Wireless Gecko 2.4 GHz +6 dBm, 4x4 QFN32 Radio Board | MSRP $29.00 | Buy Now | |
SLWRB4250A | EFR32FG1 2.4 GHz and 915 MHz Radio Board | MSRP $60.00 | Buy Now | |
SLWRB4250B | EFR32FG1 2.4 GHz and 868 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4251A | EFR32FG1 2.4 GHz and 490 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4251B | EFR32FG1 2.4 GHz and 434 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4253A | EFR32FG12 2.4 GHz and 915 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4254A | EFR32FG12 2.4 GHz and 868 MHz Radio Board | MSRP $62.00 | Buy Now | |
SLWRB4255A | EFR32FG13 2.4 GHz and 915 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4256A | EFR32FG13 2.4 GHz and 868 MHz Radio Board | MSRP $60.00 | Buy Now | |
SLWRB4257A | EFR32FG14 2.4 GHz and 915 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4257B | EFR32FG14 2.4 GHz and 868 MHz Radio Board | MSRP $60.00 | Buy Now | |
SLWRB4258A | EFR32FG14 2.4 GHz and 490 MHz Radio Board | MSRP $49.00 | Buy Now | |
SLWRB4258B | EFR32FG14 2.4 GHz and 169 MHz Radio Board | MSRP $57.00 | Buy Now | |
SLWRB4259A | EFR32FG14 2.4 GHz and 434 MHz Radio Board | MSRP $57.00 | Buy Now | |
SLWRB4261A | EFR32FG14 Wireless Gecko 490 MHz Long Range TCXO Radio Board | MSRP $59.00 | Buy Now | |
SLWRB4262A | EFR32FG14 Wireless Gecko 915 MHz Long Range TCXO Radio Board | MSRP $66.00 | Buy Now | |
SLWRB4262B | EFR32FG14 Wireless Gecko 868 MHz Long Range TCXO Radio Board | MSRP $59.00 | Buy Now | |
XG22-RB4415A | EFR32xG22E Wireless 2.4 GHz +6 dBm Radio Board | MSRP $29.00 | Buy Now | |
XG23-RB4204D | EFR32XG23 868-915 MHz +14 dBm Radio Board | MSRP $58.00 | Buy Now | |
XG23-RB4210A | EFR32XG23 868-915 MHz +20 dBm Radio Board | MSRP $64.00 | Buy Now | |
XG28-RB4400C | EFR32xG28 2.4 GHz BLE and +14 dBm Radio Board | MSRP $40.00 | Buy Now | |
XG28-RB4401C | EFR32xG28 2.4 GHz BLE and +20 dBm Radio Board | MSRP $40.00 | Buy Now |
EFR32xG23 Pro Kit +14 dBm

EFR32xG23 Pro Kit +14 dBm
Software and Tools
Proprietary Software Development
The Flex SDK is a complete software development suite for proprietary wireless applications that provides two paths for development. The first path begins with Silicon Labs RAIL (Radio Abstraction Interface Layer), which is an intuitive and easily-customizable radio interface layer designed to support proprietary or standards-based wireless protocols. The second path uses Silicon Labs Connect, an IEEE 802.15.4-based networking stack designed for creating easily customizable broad-based proprietary wireless networking solutions optimized for devices that require low power consumption for both sub-GHz and 2.4 GHz frequency bands and targeted for simple network topologies. The Flex SDK includes extensive documentation and sample applications, the popular range test, functionality for lab evaluation, wake-on-radio as well as bi-directional packet transmission and reception. All these examples are provided in source code within the Flex SDK sample applications. Using the supporting Simplicity Studio tools suite, developers can take advantage of the graphical user interface to quickly generate wireless applications, perform energy profiling and various system optimizations.
RAIL (Radio Abstraction Interface Layer) | Silicon Labs’ RAIL (Radio Abstraction Interface Layer) lets you adopt the latest RF technology without sacrificing the investment you’ve made in your wireless protocol. Designed to support proprietary or standards-based protocols, RAIL simplifies and future-proofs the migration of code to new ICs. | |
Connect Stack | Silicon Labs’ Connect is an IEEE 802.15.4 based wireless networking stack for broad-based proprietary applications and is optimized for devices that require low power consumption. This full-featured, easily customizable networking stack is designed for compliance with regulatory specifications across worldwide geographic regions and supports both sub-GHz and 2.4 GHz frequency bands. |
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Technical Documentation
Find Data Sheets, App Notes and More.
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Proprietary Training
Discover training curriculum including written and video modules.
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Connect Stack Software Reference Documentation
Develop and prototype smarter for Connect Stack. Get to market faster.
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RAIL Software Reference Documentation
Develop and prototype smarter for RAIL. Get to market faster.
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Visit The Community
Engage with our engineers and developers from around the world and check out our knowledge base articles featuring FAQs, example code and additional resources.
Simplicity Studio
Get up and running quickly with precompiled demos, application notes and examples. Use advanced tools including energy profiling and network analysis to optimize your MCU and wireless systems.
Applications
Secure, smart home solutions for Proprietary
Smart Home
Asset Tracking
Smart Metering
Learn About Proprietary
Proprietary Wireless
When a standard protocol does not fit your use case, or when your design has unique requirements, proprietary wireless networks can be the right solution. With proprietary protocols, you can design specifically for your use case, thus reducing memory and processing requirements and resulting in lower power and lower development cost. Additionally, proprietary networks are naturally more secure than other standards-based protocols due to the hidden nature of the of data rates, modulation, and packet structure. These parameters are more widely known for standard protocol networks, making them more vulnerable to security threats.
Proprietary Sub-GHz Band
Advantage of using sub-GHz frequencies in your designs is longer range. Sub-GHz radio waves can easily pass-through walls and other obstacles and can bend around buildings with much lower attenuation. Sub-GHz frequencies also have less interference than the 2.4 GHz band, which is crowded with signals from other sources such as Wi-Fi and Bluetooth devices.
Proprietary 2.4 GHz Band
A proprietary 2.4-GHz network allows you to customize wireless application layer protocol and operates on a license free band around the world which means you can deploy your application at a lower cost. Best suits for custom wireless protocol applications and interoperability with legacy 2.4-GHz wireless protocol application.
Learn more about Proprietary with these training assets
Tech Talk
Tech Talk
Tech Talk
Featured Proprietary Resources
Case Studies
Brochures
Case Studies
Events
Works With On-Demand 2024
Where Innovation Meets Implementation
2024 marks the 5th year of Works With, our industry-defining technical IoT developer conference. One of the defining characteristics of this event is the collection of industry experts, business leaders, and the minds driving the future of our industry. The full 2024 Works With Virtual agenda is now available on-demand.