Close this search box.


Self-Install Cellular Coverage Solution for Small Offices, Retail, and Homes.

Region: Rest of World (APAC, EMEA, and Oceania)
Bands: 1, 3, 5, 7, 8, 20, 28L, 40

In today’s digital world, many people still experience poor cellular coverage. This not only impacts productivity in the workplace, but also causes a poor experience for people at home wanting to make calls or stream content on demand.

The CEL-FI CONNECT C41 Smart Signal Repeater solves the problem of poor coverage by making it easy for businesses and homeowners to improve their 3G, 4G, or 5G in-building cellular reception. Combining plug-and-play operation with industry-leading performance, CONNECT C41 is designed to be set up and boost cellular signal within minutes. Once powered on, the system automatically configures all parameters for the desired mobile operator network, allowing set up to be quick and simple.

Dependable Coverage

Reliable 3G/4G/5G calling and streaming via best-in-class signal boost

Proprietary Technology

Nextivity IntelliBoost chip ensures industry-leading performance


Simple set up for boosting signal within minutes


Select and switch mobile network operator as well as view real-time system performance

Consistent Connectivity

DSS (Dynamic Spectrum Sharing) support for seamless network migration

Network Safe

No interference with other wireless systems – carrier approved with no noise guarantee

A simple plug-and-play solution for small spaces

Whether coverage is needed for enabling mobile workstation essentials in the office or simply enjoying connectivity at home, CEL-FI CONNECT C41 provides businesses and homeowners the peace of mind that poor reception is a thing of the past.

Power and flexibility at your fingertips

Powered by IntelliBoost

The Nextivity proprietary IntelliBoost chip uses digital signal processing to enhance cellular performance in real-time and ensure CEL-FI solutions provide unbeatable coverage for organizations and homes. In addition to deliver the industry’s highest gain at the lowest coast per square foot, IntelliBoost enables Nextivity solutions to be unconditionally network safe and approved for use in over 100 countries by over 200 mobile network operators globally.

Operator Switching

The CEL-FI CONNECT C41 also features Bluetooth for seamless connectivity with the Nextivity WAVE app. Through WAVE, businesses and homeowners can easily change mobile operator networks as well as view real-time system performance.

Tech Specs

Frequency Bands


Physical Specifications

Main Unit:
10.5 x 9.2 x 4.2 in (268 x 233 x 106 mm)
5.1 lbs (2.3 kg)

Donor Antenna:
7.4 x 6.9 x 3.0 in (187 x 176 x 77 mm)

System Gain

Up to 100 dB Gain

Kit Numbers


Buy Now

Find out where you can buy a CEL-FI CONNECT in your region.