Quectel's New 5G RedCap Modules Bring Advanced GNSS Support to Mid-Range IoT Market

Quectel has officially launched two new 5G Reduced Capability (RedCap) modules, the RM255C-GL and RG255C-NA, designed to bring advanced connectivity and positioning capabilities to mid-range IoT devices. These modules represent a significant evolution in Quectel's portfolio, targeting the growing market for cost-effective yet feature-rich IoT solutions that require reliable 5G connectivity without the premium costs associated with full 5G capabilities.

The RM255C-GL, designed for global deployment, comes in a compact M.2 form factor measuring 30.0 x 42.0 x 2.3 mm and weighing approximately 6 grams. In contrast, the RG255C-NA, tailored for North American markets, utilizes an LGA package with dimensions of 32.0 x 29.0 x 2.4 mm and a slightly lighter weight of about 5.2 grams. Both modules leverage 3GPP Release 17 technology for 5G Reduced Capability connectivity, making them ideal for mid-tier industrial and commercial IoT applications that require more bandwidth than LTE but don't necessarily need the full capabilities of standalone 5G.

Connectivity-wise, these modules offer Sub-6 GHz 5G SA (Standalone) mode support with LTE Cat 4 as a fallback option, ensuring reliable connections even in areas with limited 5G coverage. They maintain backward compatibility with earlier 3GPP Release 15 and Release 16 networks, providing flexibility for existing IoT deployments. The RG255C-NA includes additional support for 5G LAN, URLLC (Ultra-Reliable Low-Latency Communications), and Network Slicing features, making it particularly suitable for applications requiring specialized network configurations.

Power efficiency represents a key optimization in these modules, with sleep mode current draw of approximately 2.83 mA for the RM255C-GL and 2.5 mA for the RG255C-NA. Idle consumption is rated at 21.97 mA for the global variant and 27 mA for the North American model. These figures demonstrate Quectel's focus on extending battery life for battery-powered IoT devices, a critical consideration for many industrial and commercial deployments.

Regulatory compliance varies by region, with the RM255C-GL holding global certifications including CE, RCM, FCC, IC, GCF, and PTCRB. The RG255C-NA has secured PTCRB, FCC, and IC approvals specific to North American markets. Both modules support standard interfaces including USB 2.0 and PCIe 2.0, with the RG255C-NA adding PCM, UART, SGMII, and SPI support for enhanced connectivity options.

A standout feature of both modules is their integrated GNSS/location engine based on Qualcomm's IZat Gen 9VT technology. This system supports multi-constellation GNSS including GPS, GLONASS, Galileo, BDS, QZSS, and NavIC, providing faster and more accurate positioning than single-constellation GPS solutions. This capability is particularly valuable for asset tracking, fleet management, and location-based IoT applications where precise positioning is essential.

Quectel has designed these modules with upgrade paths in mind, ensuring pin-to-pin compatibility with their older 4G modules and partial compatibility with the smaller 4G EG2x series. This compatibility simplifies migration paths for existing deployments looking to upgrade to 5G RedCap capabilities without requiring complete redesigns of their hardware platforms.

From a market perspective, these modules fill an important gap between LTE-only solutions and full 5G implementations. The 5G RedCap technology, as defined in 3GPP Release 17, offers a middle ground with reduced complexity and cost compared to standalone 5G while still providing significantly improved performance over LTE. This makes the RM255C-GL and RG255C-NA particularly attractive for applications like smart meters, industrial automation, connected retail systems, and other mid-tier IoT deployments.

The RM255C-GL global variant is currently available from Mouser Electronics at approximately $143.85 with a minimum order quantity of 150 units. At the time of writing, the RG255C-NA North American variant is not yet available through distribution channels, though Quectel has indicated it will be released shortly.

For organizations evaluating these modules, the decision between the RM255C-GL and RG255C-NA will primarily depend on regional requirements and specific feature needs. The global variant offers broader regulatory certification and M.2 form factor compatibility, while the North American version provides additional 5G-specific features and a more compact LGA package.

As the IoT landscape continues to evolve, solutions like Quectel's new 5G RedCap modules demonstrate the industry's progression toward more capable, efficient, and cost-effective connectivity options. The integration of multi-constellation GNSS support further enhances the value proposition, positioning these modules as compelling solutions for a wide range of mid-tier IoT applications requiring both connectivity and precise positioning capabilities.