Lexar just announced the world’s first 1TB (terabyte!) 633x SDXC UHS-I memory card that leverages Class 10 UHS-I (U3, V30) technology for a read transfer speed up to 95MB/s (633x)* and can record 1080p full-HD, 3D, and 4K video**.
Check pricing and availability at Adorama, B&H and Amazon.
Update: ProGrade Digital also has a new 1TB CFexpress memory card.
Press release: