Looking for an Installed Booster for Home or Office? FREE INSTALLATION INCLUDED WITH PURCHASE. Shop Now

Cel-Fi QUATRA 4000 Enterprise Cell Signal Booster System

IN STOCK. Ships same or next business day.
In Stock: Ships same or next business day
  • Coverage up to 200,000 sq. ft.
  • +100 dB gain for all US carriers
  • Innovative network/coverage unit setup for maximum coverage
  • Independent Donor antenna or Small Cell input per carrier
  • Uses CAT5 network cable for simple cable runs

This is a commercial-grade premium price product. The final price depends on configuration. Our experts can help you design the most cost-efficient solution tailored to your needs.

Need help finding the right booster? Speak to a Signal Expert
Shipping Guarantee
FREE shipping with Expedited available.
Money Back Guarantee
Test it for 30 days, or your money back.
Warranty Guarantee
2 year manufacturer's warranty
Cel-Fi Reseller

Improve Your In-Building Cellular Signal Immediately

Installing a commercial signal booster system requires a professional's touch. Our team of signal experts will make sure you get coverage in the workspaces where you need it most. We have improved indoor cellular coverage in millions of square feet for some of the largest companies in the world.

Speak to an Expert 1-800-420-3211

Cel-Fi QUATRA 4000 Details

Cel-Fi's Most Powerful in-building cellular boosting solution.

The Cel-Fi QUATRA 4000 is the most advanced multi-band signal booster in the world. It greatly enhances 4G, 4G LTE, and 3G cellular signal for any wireless device across all major American carriers.

The QUATRA 4000 works by having a standalone Network Unit receive and amplify the outside signal, then uses CAT5 cable to send the signal to Coverage Units throughout the installation. The Coverage Units then make use of traditional dome or panel antennas to spread the amplified signal throughout its substantial range. Six coverage units can be supported at one time.

It features:

  • More Coverage: The scalable design works with one to six Coverage Units to provide up to 75,000 ft² (7,000 m²) of coverage.
  • More Power: +100 dB gain compared to +70 dB gain of other commercial boosters.
  • Better Signal: Digitized RF allows for longer cable runs
  • Scalable All-Digital PoE Cat5e Active DAS Hybrid for Middleprise
  • Works for all phones & cellular devices on AT&T, Verizon, T-Mobile, and/or Sprint (select your own carriers.)
  • Carrier-Approved and Unconditionally Network Safe
  • Independent Donor antenna or Small Cell input per carrier
  • Compatible with Cel-Fi WAVE software to activate, optimize, and manage online.

More Coverage

The Cel-Fi QUATRA 4000 is a two-unit system featuring the Network Unit (NU) and Coverage Unit (CU). The NU processes and improves signal quality, then the CU broadcasts boosted signal. One 4000 NU can support up to 6 CUs for maximum coverage area up to 75,000 sq ft. Four Cel-Fi QUATRAs–with support up to 24 CUs–when connected to a small cell can provide unified coverage up to 200,000 sq ft.

More Power

Cel-Fi’s Quatra 4000 solution boosts signal up to +100 dB for a difference of +30 dB or up to 1000x more power compared to other boosters.

Better Signal

The QUATRA 4000 features PoE (power over ethernet) through Cat5e cables instead of coax cables. This means the signal is transmitted digitally for better signal quality and longer cable runs compared to analog coax cables with long distance signal degradation. Cable runs up to 325 feet per CU (broadcasting antenna).

Never drop a call again. Stop waiting for loading screens. No more searching for reception. Get faster internet & updates on your apps. Send emails and text messages with zero delay. Stream video & audio with little to no buffering.

More bars instantly.

Cel-Fi Wave App

cel fi app

Cel-Fi WAVE is the software application and cloud-based portal solution used for registering, setting-up, optimizing, remotely monitoring, and updating the Cel-Fi hardware. Available on iOS, Android, Tencent, PC, and Mac devices.

Installation & Deployment

At Signal Boosters we provide full turnkey integration of in-building wireless (IBW) systems that amplify signal indoors, delivering the signal you need to get the job done. From the first call to post-project, Signal Boosters handles every detail personally in-house. Our team of RF engineers, system integrators, designers, and certified signal boost specialists take complete ownership of your project.

1. Assessment
  • Pre-survey
  • Site survey
2. System Design
  • Data analysis
  • Floor plans
  • Equipment & Pricing
3. Installation
  • Installing equipment
  • Optimization
4. Support
  • Documentation
  • Monitoring & support

Nextivity Cel-Fi QUATRA System Benefits

  • Virtually eliminates dropped calls
  • Crystal clear voice quality
  • Quickly send & receive text messages and emails
  • Faster internet data (uploads, downloads, and streaming)
  • Wider coverage area & Improved reception
  • Consistent service throughout the office
  • Reliable connection
  • More bars
  • Longer battery life for phone
  • Always on, always connected

Compatible With Major US Networks

The Cel-Fi QUATRA Smart Signal Booster amplifies talk & text, 3G, and 4G LTE for AT&T, Verizon, T-Mobile and/or Sprint.

Compatible Carriers (4G LTE & 3G): AT&T, Verizon, T-Mobile and/or Sprint

System Configurations:

4 Carriers: Independent Donor antenna or Small Cell input per carrier: AT&T, Verizon, T-Mobile, and Sprint

Tech Specs

Cel-Fi QUATRA 4000 Active DAS Hybrid system
Operators Supported AT&T, Sprint, Verizon, T-Mobile
Bands 4, 12, 13, 25, 26, 30, 41, 71
Coverage Unit Frequency 617 - 2690 MHz Downlink; 663 - 2690 MHz Uplink
Downlink Power 17 dBm per band
Max Gain 100 decibels (dB)
RF Port Connector N-Female
Power 100V to 240V AC, 47 – 63Hz
Dimensions Network Unit 12.9 x 10.7 x 3.4 in / 330 x 272 x 85 mm
Weight Network Unit 14.33 lbs / 6.5 kgs


This is a CONSUMER device. BEFORE USE, you MUST REGISTER THIS DEVICE with your wireless provider and have your provider's consent. Most wireless providers consent to the use of signal boosters. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider. You MUST operate this device with approved antennas and cables as specified by the manufacturer. Antennas MUST be installed at least 20 cm (8 inches) from any person. You MUST cease operating this device immediately if requested by FCC or a licensed wireless service provider.


The Cel-Fi QUATRA is a scalable enterprise signal boosting solution, professional installation is highly recommended for best performance. Please call: 1-855-313-8208 or email: [email protected] our expert enterprise solutions team for more information about installing a QUATRA system in your building.

Recommended Add-ons

Cel-Fi Cel-Fi DUO Smart Signal Booster

Cel-Fi DUO+ Smart Signal Booster

  • Powerful single-carrier solution
  • Coverage up to 13,000 sq. ft.
  • Uses the most advanced radio frequency and signal processing technology
  • Uses Cel-Fi‚Äôs award-winning network safe Smart Booster technology
  • 5 Min Setup: Plug & Play

Customer Reviews