One month after launching its new Pogoplug Cloud service, Pogoplug (http://www.pogoplug.com/expansion) has announced the next generation of its flagship cloud expansion device: Pogoplug Series 4.

Pogoplug’s free Pogoplug Cloud service gives users 5GB of online cloud storage optimized for mobile phones and tablets. New users can sign up directly from their phone to create their free Pogoplug Cloud account.

Pogoplug Series 4 allows users to add unlimited cloud capacity to their Pogoplug account by hosting their own storage, with no monthly fees or limits. The model provides plug-and-play support for Seagate GoFlex external drives and other storage products that have adopted the new Universal Storage Module standard (USM), as well as the following inputs: USB 3.0 x 2; SD x 1; USB 2.0 x 1; and 2.5-inch SATA/USM/Seagate GoFlex ultra-portable drives x1

Pogoplug Series 4 is US$99 and available now at select retailers. Pogoplug’s iOS app is available at the Apple App Store.