Firmenblog über Mingjiada Electronics Supplies Quectel’s LTE Cat Series Wireless Communication Modules—All LTE Cat 1/Cat 4 models are in stock, enabling efficient connectivity for IoT devices

As 2G/3G networks are being phased out at an accelerating pace worldwide, LTE Cat 1 bis has become the dominant technology in the cellular IoT module market. According to a report by market research firm TSR, LTE Cat 1 bis accounted for 63% of total cellular IoT module shipments in 2025. During this critical transition period, selecting a reliable module supply partner is of the utmost importance. Shenzhen Mingjiada Electronics Co., Ltd., a professional distributor with nearly 30 years of experience in the electronic components sector, maintains a long-term stock of Quectel’s full range of LTE Cat wireless communication modules—including the LTE Cat 1, Cat 1 bis, and Cat 4 product series—providing stable and efficient module supply assurance for IoT device manufacturers.

I. Why Choose Quectel’s LTE Cat Series Modules?

Quectel is a leading global supplier of IoT modules. According to Counterpoint’s 2025 global cellular IoT module shipment rankings, Quectel maintains the top global position with a market share of 37%, solidifying its leadership. Its LTE Cat series modules, leveraging mature 3GPP LTE technology, a wide range of product models, and global frequency band coverage, are widely used in mainstream IoT scenarios such as smart meters, asset tracking, POS terminals, and industrial routers.

The core advantage of LTE Cat 1 lies in its “golden balance between performance and cost.” Compared to NB-IoT, LTE Cat 1 supports higher data transmission rates (10 Mbps downlink / 5 Mbps uplink), lower latency, and greater mobility, making it suitable for application scenarios requiring real-time responses. Compared to Cat 4, Cat 1 offers superior cost-effectiveness while meeting medium-to-low data rate requirements, making it the preferred alternative following the phase-out of 2G/3G networks.

II. Key LTE Cat Product Series from Quectel Supplied by Mingjiada Electronics

(I) LTE Cat 1 Series Modules

1. EG91 Series

The EG91 is an LTE Cat 1 wireless communication module designed by Quectel specifically for the M2M and IoT sectors. It utilizes 3GPP Rel. 11 LTE technology and supports a maximum downlink rate of 10 Mbps and a maximum uplink rate of 5 Mbps. The module measures 25.0 mm × 29.0 mm × 2.45 mm, features an LGA package, and has an extended temperature range of -40°C to +85°C. The EG91 Series comprises eight models: EG91-NA, EG91-JP, EG91-VX, EG91-NAX, EG91-E, EG91-EX, and EG91-AUX. The modules are pin-compatible with Quectel’s GSM M95 modules and LPWA BG95/BG96 modules, enabling a seamless transition from 2G/3G to 4G. It features a built-in multi-constellation GNSS receiver that supports GPS, GLONASS, BDS, Galileo, and QZSS positioning technologies, making it suitable for applications such as smart metering, wearable devices, environmental monitoring, asset tracking, and fleet management.

2. EG21-G

The EG21-G is a low-power, cost-effective LTE Cat 1 wireless communication module launched by Quectel, measuring 32.0 mm × 29.0 mm × 2.4 mm in an LGA package. The module is pin-compatible with Quectel’s UMTS/HSPA+ modules and the multi-mode LTE Standard EC2x series (EC25/EC21/EC20-CE), EC200A series, and EG25-G modules, offering high design flexibility. It integrates a multi-constellation GNSS receiver, supports DFOTA and DTMF functions, and operates within a temperature range of -35°C to +75°C (extended temperature range: -40°C to +85°C). It has obtained major global certifications, including GCF, CE, FCC, PTCRB, CCC, KC, NCC, JATE/TELEC, RCM, and ICASA.

3. EC800M Series / EC600M Series

The EC800M-CN and EC600M series are ultra-compact LTE Cat 1 wireless communication modules designed by Quectel specifically for the M2M and IoT sectors. They support maximum downlink speeds of 10 Mbps and maximum uplink speeds of 5 Mbps, and are renowned for their ultra-compact form factor and exceptional cost-performance ratio. They are suitable for size-sensitive wearable devices, smart home terminals, and portable IoT devices.

(2) LTE Cat 4 Series Modules

EC25 Series

The EC25 Series consists of LTE Cat 4 wireless communication modules designed by Quectel specifically for the M2M and IoT sectors. Utilizing 3GPP Rel-11 LTE technology, these modules support maximum downlink speeds of 150 Mbps and maximum uplink speeds of 50 Mbps. The EC25 Series comprises 14 models (EC25-A, EC25-AF, EC25-EU, EC25-J, etc.), covering major global frequency bands in regions such as North America, Europe, Japan, and Australia. Based on Qualcomm’s advanced iZat™ positioning technology (Gen8C Lite), the modules integrate a multi-constellation GNSS receiver and support GPS, GLONASS, BDS, Galileo, and QZSS positioning. The EC25 series is pin-compatible with Quectel’s EC21 series, EC20-CE, EG25-G, and EG21-G modules, enabling a seamless transition from 3G to 4G networks. It is widely used in industrial-grade routers, industrial-grade PDAs, tablets, video transmission, digital signage, and other applications.

EC200A Series / EC200R Series

The EC200A Series includes four models—EC200A-CN, EC200A-EU, EC200A-AU, and EC200A-EL—to meet the frequency band coverage requirements of different countries and regions, and is backward compatible with GSM/GPRS/EDGE networks. The EC200R Series includes two models—EC200R-CN and EC200R-EU—which utilize 3GPP Rel-9 LTE technology and support maximum downlink speeds of 150 Mbps and maximum uplink speeds of 50 Mbps.

III. Typical Application Scenarios

LTE Cat series modules are widely used in the Internet of Things (IoT) sector. Thanks to its balanced performance and cost, LTE Cat 1 has become the preferred solution for a vast array of applications, including smart meters, tracking devices, and POS terminals. Specific applications include:

Smart Metering: Remote meter reading for water, electricity, and gas meters, leveraging Cat 1’s low power consumption and wide coverage capabilities

Asset Tracking: Logistics trackers, cold chain monitoring, and shared device location tracking

Mobile Payments: Handheld POS terminals, financial payment devices

Industrial Internet of Things (IIoT): Industrial routers, DTUs, gateways, equipment condition monitoring

In-Vehicle Communications: In-vehicle communication terminals, fleet management, remote diagnostics

LTE Cat 4 is suitable for scenarios requiring higher data rates, such as industrial-grade routers, video transmission equipment, digital signage, and video surveillance.

IV. Supply Advantages of Mingjiada Electronics

Established in 1996, Shenzhen Mingjiada Electronics Co., Ltd. is an internationally renowned authorized independent distributor of electronic components. Headquartered in Shenzhen, the company operates branches and smart warehouses in Hong Kong, Japan, Russia, and other locations, and has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications.

Mingjiada Electronics has long supplied the full range of Quectel’s cellular communication modules, short-range communication modules, GNSS positioning modules, and IoT solutions, which are widely used in smart devices, vehicle-to-everything (V2X) communication, industrial automation, and other fields. Specific supply advantages include:

Full-range stock availability: Covers the entire range of Quectel modules, including 5G, LTE Cat 1/Cat 4, NB-IoT, and GNSS, supporting both small-batch trial production and bulk procurement

Guarantee of Genuine Products: All products are sourced through official channels directly from the manufacturer, come with a manufacturer’s warranty, and support inspection by third-party testing agencies

Rapid Delivery Capability: Stocked in dual warehouses in Shenzhen and Hong Kong, with over 2 million SKUs in stock; standard orders ship within 1–3 days, and urgent orders are dispatched within 4 hours

Flexible Transaction Methods: Supports domestic RMB transactions (including taxes) and Hong Kong USD transactions, catering to the full lifecycle from R&D prototyping to mass production

Contact Information:

Company Website: www.integrated-ic.com

Phone: 86-755-83294757 / 13410018555

Email: sales@hkmjd.com

Address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen