HP Slate 12 Pro Tablet was officially announced in January 2015, Device released in January 2015Mobile Network Support and BandHP Slate 12 Pro Tablet have No Card Slots,HP Slate 12 Pro Tablet not support any GSM Based network providers.and there is no 3G Network Band Support,there is no flight mode support. Device Body Design and Display HP Slate 12 Pro Tablet is a Tablet device and it have device dimension with 300 x 221 x 7 mm, Exactly 300.3 x 221.95