Big size, great speed, and in time for all my work with the Z 6III 240P, the new 1TB ProGrade SD is a great addition to the kit. It just works, great, what else do I need to say. One thing I love about ProGrade, besides their products, is the biodegradable packaging. The SD comes in all cardboard protection. Nice! Remember that when you usethe MoosePro code when you check out, you will save real money on your ProGrade purchase.