diskGO Pocket USB 3.0 mSATA External SSD Enclosure. The diskGO Pocket USB 3.0 mSATA SSD Enclosure turns an mSATA Sold State Drive (SSD) into a portable storage device. Perfect for users upgrading an UltraBook to a larger mSATA capacity and have an extra mSATA SSD available. Smaller than a credit card, the diskGO Pocket mSATA Enclosure is one of the smallest USB SSD enclosures available.