Designed for photographers and videographers looking to capture 8K+ raw footage and extended shutter bursts, the 512GB AV PRO CFexpress 4.0 Type A Memory Card from Angelbird provides maximum read speeds of 1800 MB/s and maximum write speeds of 1650 MB/s, plus sustained read speeds of 1700 MB/s and sustained write speeds of 800 MB/s. Stable Stream technology provides consistent read and write performance throughout recording, while advanced thermal management helps prevent overheating. Built for extreme conditions, Angelbird’s 512GB AV PRO CFexpress 4.0 Type A Memory Card is protected against shock, vibration, and temperatures ranging from 10 to 162°F