Designed for the Panasonic EVA1 camera, the 256GB Match Pack from Angelbird bundles two 128GB AV Pro UHS-II SDXC memory cards together and takes advantage of the UHS-II bus to support maximum read speeds of 300 MB/s and maximum write speeds of 260 MB/s. This card has also been designed with the V90 Video Speed Class rating, which guarantees minimum write speeds of at least 90 MB/s, making it well-suited to capture Full HD, 3D, and 4K video.UHS-II media achieves its speed through an extra row of pins and while this card has been designed for cameras that are UHS-II / V90 compatible, it may be used in devices that do not support UHS-II / V90. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-II and V60, which supports minimum write speeds of 60 MB/s, UHS-II and V30, which supports minimum write speeds of 30 MB/s, or UHS-I and U3, which also supports minimum write speeds of 30 MB/s. If your device does not support U3, this card is compatible with the U1 and Class 10 standards, each of which guarantees minimum write speeds of 10 MB/s.Angelbird has engineered these cards with protection against shock, dust, water, temperature extremes, x-rays, and magnets, while a built-in write protect switch helps to safeguard recorded content from being deleted. Included is a basICColor Mini Target and a media pouch that can hold four CFast or CompactFlash cards, six SD cards, and two XQD cards.General Features2 x 128GB AV Pro UHS-II SDXC cardsSustained read speeds of up to 300 MB/s and sustained write speeds of up to 260 MB/sUHS-II / V90 / U3 / Class 10Records Full HD, 3D, and 4K videoStable StreamIncludes media pouch that holds four CFast or CompactFlash cards, six SD cards, and two XQD cardsX-ray, magnetic, shock, dust, water, and temperature proofBuilt-in write-protect switchWear leveling, power management for low power usage, and ECC