AT&T to ship LTE-enabled Modio iPad mini case on March 20

Buyers can also pick it up on an installment plan, costing $10 per month for 20 months; under any circumstance, adding it to a new or existing Mobile Share Value plan is $10 per month.

The case can also be bought outright for $200. That is, however, $70 more than the difference between Wi-Fi- and cellular versions of the iPad mini 3.

The Modio sports a folio design, and in addition to enabling LTE support, includes a microSD slot accepting cards up to 32GB in size. A built-in 4,600 mAh battery should provide up to 16 hours of connectivity.

All three generations of the Mini are supported. A separate case for the iPad Air and Air 2 — first teased during January's Consumer Electronics Show — is promised "in the coming months."

To help manage the Modio's connection, AT&T has already released a free iOS app. The title tracks estimated data usage, triggering push notifications if a user approaches their data cap, and can additionally manage and stream content stored on microSD.