Cel-Fi PRO Signal Booster for AT&T 3G, 4G & 4G LTE. Available with, and without external antenna connector - Choose from drop-down menu. Signal amplifier model # P34-2/4/5/12 or SKU 590NP34GWUS1ATUS1B14 (New, Stock A) or 590NP34NEXT1NEXT1B11 is without EXA, and model # P34-2/4/5/12_EXA or SKU 590NP34GWUS2ATUS1B14 (New, Stock A) or 590NP34NEXT2NEXT1B11 is with EXA. For AT&T users who find themselves experiencing dropped calls and dead zones, now all you need is one bar to boost your signal to five. Nextivity has rolled out the new Cel-Fi PRO Signal Booster for AT&T, and its everything you could want and more.

External Antenna Adapter Version vs Non-EXA Version.

Cel-Fi PRO EXA variants feature an external antenna connector to enable the use of an external Donor antenna. A Cel-Fi PRO EXA with an external Donor antenna can thereby acquire an outside signal, allowing it to be used in applications where no signal is present indoors (i.e. cement, metal walls, etc.). This opens up new opportunities for using Cel-Fi PRO Smart Boosters when other solutions fail. Cel-Fi PRO EXA enables cellular coverage in hard to reach places by allowing the Cel-Fi Network Unit to be placed, where no service exists.

Note: The Cel-Fi PRO for AT&T version with external antenna connector does NOT include external antenna and cable - those must be purchased separately.

All you need to do is find a place in your home or office where your AT&T network phone receives at least one bar of usable 3G, 4G or 4G LTE cellular signal. Once this is done, you simply place your coverage unit in the area, and it will enhance the signal picked up by the network needed and provide you with coverage you need; minimizing dead zones and dropped call. This is the new version. Old version part number was 590NP34ATUS1ATUS1B14. New version part number we stock is: 590NP34GWUS1ATUS1B14. Part # for kit with external antenna connector is 590NP34NEXT2NEXT1B11 or 590NP34GWUS2ATUS1B14 (same, both have EXA).

The CelFi PRO is made up of two separate units. The window unit captures signals from the closest AT&T cell tower within range and sends it inside the building, where the coverage unit then takes over by providing boosted signals in the surrounding home or business. Since network signals are often blocked or weakened by the presence of walls, these two units work in tandem to combat the issue. Automatic channel selection feature on the 5 GHz link makes sure there’s no interference with Wi-Fi routers, cordless phones, baby monitors etc.

With a 100dB boost approved by the FCC, this signal booster is the only one approved to function with the AT&T network, provides faster and wider coverage of up to 13,000 ft. in the home or office, and can support up to sixty users at a time. It works with 3G, 4G & 4G LTE networks, and provides quad band boosting in bands 2 (1900MHz), 4 (1700/2100MHz), 5 (850MHz) and 12/17 (700MHz). This is made possible by the built in Cel-Fi Baseband Processor that enables the signal booster to adapt to HSPA and LTE network environments, without interfering with other networks and nearby devices using 3G, 4G and 4G LTE network technologies.

This Cel-Fi PRO comes with one (1) Network Unit with EXA port, one (1) Coverage Unit, two (2) Power Supplies, two (2) Mounting Brackets and a Quick Start Guide. Cel-Fi PRO warranty period is two years from the date of purchase.

These work for all cellular devices on AT&T Wireless network and of course for the AT&T MVNO's (Mobile Virtual Network Operators) that resell services on the same AT&T network including the following:

1. 420 Wireless.
2. Aeris Communications, Inc.
3. AirVoice Wireless.
4. Black Wireless.
5. Boom Mobile.
6. campusSIMs.
7. Consumer Cellular.
8. Cricket Wireless.
9. Defense Mobile.
10. FamilyTalk Wireless
11. Flash Wireless.
12. good2GO Mobile.
13. H2O Wireless.
14. KDDI Mobile.
15. Jolt Mobile.
16. Net10 Wireless.
17. Pix Wireless.
18. Pure TalkUSA.
19. Red Pocket Mobile.
20. SkyView Wireless.
21. Straight Talk.
22. TracFone.
23. UWT Mobile.

Note: Cel-Fi manufacturer requires returns be in mint condition or will incur re-stocking fee of 25%. Please ensure that if this brand product item has to be returned, it must be received in mint, resaleable condition. Thank you very much.