Angelbird AVP512CFXAMK2 AV PRO CFexpress 4.0 Type A Memory Card - 512GBDesigned 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