Delkin Devices 325GB BLACK CFexpress Type B Memory Card with CFexpress Type

OVERVIEW

Designed for professional photographers / videographers for raw and continuous-burst photography, as well as 8K, 6K, and 4K video at high bitrates and frame rates. Rugged, waterproof, shockproof design that is resistant to extreme temperatures.

Supported in the latest camera models from Canon, DJI, Fujifilm, Nikon, Panasonic and Sony, CFexpress™ Type A and Type B memory cards, as well as Secure Digital, are today’s standard for fast and reliable memory card storage. Now SD has been around for a while, but CFexpress™ Type A and Type B are fairly new and you may have questions regarding the differences between all 3 memory types. Here, we’ve broken down the common terms and symbols found on CFexpress™ Type A, CFexpress™ Type B and SD cards in order to help you understand the differences between them, as well as which cards are best for certain cameras.

TECHNOLOGICALLY ADVANCED SPEEDS

CFexpress™ Type A & Type B memory cards utilize a 3rd generation PCI Express (PCIe 3.0) interface with 1 to 4 lanes, where each lane can theoretically transfer 1 GB/s of data. Delkin currently offers CFexpress™ Type A cards in 2-lane and Type B cards in 4-lane, which allow for flawless cinema-quality video capture, including 8K, 6K & 4K at high frame rates and bitrates, as well as high-resolution RAW continuous-burst photos. In comparison, SD cards are NAND-based and even the fastest cards provide speeds significantly lower than CFexpress™ memory cards (e.g. Max Read & Write Speeds for POWER UHS-II (V90) SD: 300 MB/s & 250 MB/s respectively).

MAXIMUM READ SPEED:

The fastest speed that data can be transferred from the card to a computer. The higher the read speed, the less wait time and sooner post-production can begin. High read speed is ideal for photographers and videographers who need to quickly unload large amounts of data and get back to shooting.

MAXIMUM WRITE SPEED:

The fastest speed that data can be written to the card. The higher the write speed, the more you can capture in a certain amount of time. High write speed is ideal for photographers and videographers who are shooting in demanding capture modes, such as high-resolution video and RAW burst photography.

MINIMUM SUSTAINED WRITE SPEED:

The minimum speed that data will be written to the card. SD cards are rated either V10, V30, V60 or V90, meaning minimum write speeds of 10 MB/s, 30 MB/s, 60 MB/s or 90 MB/s respectively. CFexpress™ Type A cards are rated Video Performance Guarantee 400 (VPG 400), which guarantees minimum write speeds of 400 MB/s.