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DataJack 598U USB Modem (No Contract Pre-Paid 3G) - Ships on 10/24/2014


Item Number: 3578



Datajack offers 4 service options. You must choose one when you place your order, and 3Gstore will activate your modem with your desired service option. Don't worry - you can always change your service option in the future (for example, if you select the 200MB plan now, but next month need more data, you can simply choose a higher plan next month).
Which Service Plan Would You Like? - details
3Gstore can activate your service for you before shipping OR you can wait and call us to activate when you're ready. If you choose to wait, please note that activations take place during business hours only (Mon-Fri, 9am-6pm CST) and can take up to 2 hours.
When Would You Like Your Service Activated? - details
  • DataJack’s service allows customers to utilize a nationwide 3G mobile broadband network, with no contract, activation fees, or cancellation fees... and you can choose from 4 service plan options to fit your data needs!
  • How it works: you purchase the modem and your first month of service (choose from 200MB for $9.99/mo, 500MB for $19.99/mo, 1GB for $29.99/mo, or 5GB for $49.99/mo). 3Gstore will activate the service for you (you can choose whether you want us to activate it before we ship or if you prefer to wait until you receive it) - after your first month is up, you can then choose to pay for another month, set up recurring billing, or simply let the service stop until the next time you need it. No credit check or personal information is required, and you can cancel any time.
  • Read more at our FAQ page.
  • IMPORTANT RETURN POLICY INFO: DataJack devices have a 15-day return period (beginning the day your service is activated), and we can ONLY accept returns if you have used LESS THAN 100mb of data. If you have used less than 100mb, you are eligible for a refund for the device and the first month of service, less the standard 20% restocking fee. Datajack devices are non-returnable if you have used more than 100MB of data. Make sure to read the full RMA policy before ordering.

IMPORTANT: this USB modem can ONLY be activated with DataJack's service - it can't be used as a replacement device for an existing contract, nor can it be used for any other service (e.g. pay-as-you-go, etc)

  • Compatibility: Windows® 7, Vista and XP or Macintosh OS X
  • Dimensions: 0.9 x 3.1 x 0.44 in
  • Weight: 0.7 ounces
  • Chipset: Qualcomm® QSC6085
  • Frequency: Digital dual-band (CDMA 1900 and 800 MHz); supports EV-DO 1XRTT, Rev-0 and Rev. A where available
  • Antenna: Built-in + port for external antenna (sold separately)

System Requirements:

  • Memory: 64 MB
  • Disc Space: 32MB
  • Processor: Pentium 150 MHz or higher
  • Slots: USB port

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All Reviews (4)

Only customers who bought this item from 3Gstore can write a review - these are all verified 3Gstore purchases

Date Added: 12/30/2013 by Dart K. (Acworth, GA)
Very handy device 3g store was great with helping set it up

Date Added: 10/31/2012 by Henry C. (Southlake, TX)
I use it in rural Texas. The speed download webpages is as expected, meaning it's slower than wired broadband but faster than dialup. It is a bit too laggy for intensive applications like watching video or online gaming, but its acceptable for other things like email and web surfing. Data plan prices are slightly more expensive than other prepaid plans like Virgin mobile ($20 for 1gb at Walmart) or Walmart's Internet on the go (where the data also doesn't expire after a month), but much better than Verizon's. I wish Datajack also had plans that do not expire after a month for those of us that use it less frequently. I like this modem because it has a connection port for an external antenna to get better reception in remote areas.

Date Added: 09/08/2012 by Joan J. (Ridgewood, NJ)
This has worked out well for me and not having a contract is great! Would recommend!

Date Added: 06/09/2012 by ANDREW Y. (Oakland, CA)
Bought pre-activated by 3G store. Plugged in and Ubuntu detected it as a Sierra Compass 597 and connected without issue.

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Questions & Answers

What is the coverage area? Is it US only or Canada too?


WARRANTY INFO: Software or hardware-related issues with the modem are covered for 90 days from the date of purchase.