Important Details about this product (read first)
ALFA Tube-4G v2 is not a Wi-Fi Extender, it is for 4G/Cellular data only and requires a SIM card and line of service from a provider to operate. It does not boost voice call reception or signal, only the 4G data. Read how to purchase service for this device here.
ALFA Tube-U4G Global helps increase your 4G data signal.
If you subscribe to a wireless data package with its own SIM card for use in a 4G USB modem from either AT&T, Verizon, or T-Mobile, you can put the SIM inside the Tube-U4G v2 USB WiFi modem, and attach that with the included USB cable to your Microsoft Windows PC. The Tube-U4G can pull in a cellular data signal from a nearby tower often stronger than your phone's 4G data signal and is ideal for use in places where your phone or current USB 4G modem gets a very weak signal, such as 1 bar.
If you are so far from a tower your phone cannot get any 4G LTE signal inside or right outside your structure, this product may not work. It is not Satellite based and you must have a cellular tower for your carrier somewhere in the area. This does not boost signal for voice calls or SMS/MMS, just 4G data.
Think of it as a USB 4G modem on steroids.
This requires you be a customer of AT&T, Verizon, or T-Mobile with a wireless data plan that has its own SIM card. This does not work off data GBs that come with your normal cell phone plan. You must have a separate wireless broadband data package from one of these carriers with its own SIM card. Though you can pull the SIM from your phone and use that, this means you will not be able to send or receive voice calls while your SIM is in this ALFA modem.
This device requires you have active 4G service from AT&T, Verizon, or T-Mobile. Need help purchasing or activating new service? Our tech support team can help. Click the support button at the top of our web site for email and phone assistance.
Verizon- compatible with prepaid and postpaid plans
T-Mobile- compatible with prepaid and postpaid plans (may not work until up to 48 hours after SIM activation)
AT&T- POSTPAID only, NOT compatible with prepaid plans
Note that carrier customer service rep, which are commonly outsourced to call centers, are only trained on their own branded devices and will not be familiar with ALFA devices. You can call your carrier customer service to get your service activated, but issues related to getting data over your ALFA Tube-U4Gv2 should be directed toward our customer support.
Included in the box:
- Tube-U4g v2 USB receiver + 5m (16 ft) USB cable
- Cellular antenna for Tube-U4g v2
- Tube-U4g v2 needs no power supply, draws power from computer via USB cable
- waterproof tape and wire ties for mounting Tube to pole
Driver & Docs
Download Install App
Download Installation Manual
LTE FDD: Max 150 Mbps (DL) / Max 50 Mbps (UL)
LTE TDD: Max 130 Mbps (DL) / Max 35 Mbps (UL)
DC-HSDPA: Max 42 Mbps (DL)
HSUPA: Max 5.76 Mbps (UL)
WCDMA: Max 384 Kbps(DL)/Max 384 Mbps(UL)
EDGE: Max 296 Kbps(DL)/Max 236.8 Kbps(UL)
GPRS: Max 107 Kbps(DL)/Max 85.6 Kbps(UL)
Standard 6 PIN SIM card
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Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)
Online Technical Manuals and Instructions (Click Here)
State sales tax of 7% will be added to FLORIDA purchases only. There is no sales tax for any other state.
4G modem return policy: All equipment is guaranteed to be working. If you have an issue, and our tech team cannot resolve it, you can return the product within 30 days for a refund or exchange. Because range and speed can vary greatly based on your environment, a working modem can be returned for a refund with a restocking fee of $12.00 USD or less (to cover our actual postage cost to ship your order) deducted from your refund. This does not apply on defective returns. Any expedited shipping paid, or return shipping, is not refundable unless our staff sends the wrong order by mistake.