Lexar® Professional DIAMOND CFexpress™ 4.0 Type A Card

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Capacity

Features

Dual VPG Certification

Rated both VPG800 and VPG400, this card delivers stable, reliable performance even when tackling ultra-high-bitrate video recording in 8K or 12K3 RAW formats, making it ideal for high-spec productions, including filmmaking, documentary features, and commercials.

Superior, Cutting-Edge Performance

With blazing-fast write speeds of 1650MB/s¹, this card supports 4K, 6K, 8K,and 12K3 RAW video recording at cinema-grade quality. It delivers reliable and stable storage performance, significantly reducing the risk of frame drops and recording interruptions.

Blazing Burst Shooting — No Buffer Bottlenecks

With write speeds of 1650MB/s¹, the Professional DIAMOND CFexpress™ 4.0 Type A Card keeps up with your camera’s fastest bursts, and every shot is saved instantly. For sports, wildlife, or high-action scenes, there’s no lag, no waiting – just sustained full-speed writing, from the first frame to the last.

Supercharge Your Post-Production Workflow

Featuring PCIe Gen4 and NVMe high-speed protocols with read speeds up to 1800MB/s¹, this card dramatically accelerates media offload, backup, preview, and editing, reducing downtime between set and post-production.

High-Speed Performance. 30x the Endurance

Advanced pSLC technology delivers stable, high-speed performance for demanding professional workflows, from sustained high-bitrate video recording to intensive shoots. With more than 30x the endurance of standard TLC NAND-based cards,4 it’s built to withstand years of heavy professional use while reducing the need for frequent replacement.

Proprietary Thermal Control Reduces Interruptions

Built-in intelligent thermal management maintains safe operating temperatures even during high-bitrate, prolonged recording. This makes the Professional DIAMOND CFexpress™ 4.0 Type A Card a safer and more reliable choice for documentary production, all-day event coverage, and long-take cinematography where every second counts

Added Peace of Mind

8 proof points of durability are built-in5, including temperature-proof, vibration resistance, wear-out resistance, IP68 dust- and waterproof, 5- meter drop-proof shock resistance, 150N pressure resistance, and bend resistance. The card also includes a limited lifetime warranty and free, lifetime access to the Lexar Recovery Tool which helps users recover accidentally deleted photo and video files.

Specifications

  • Capacity
    640GB
  • Performance
    Up to 1800MB/s max read, 1650MB/s max write, 1400MB/s sustained write¹
  • Module Type/ Form Factor
    CFexpress 4.0 Type A
  • Interface
    PCIe 4.0
  • Operating Temperature
    -12°C to 72°C (-10.4°F to 161.6°F)
  • Storage Temperature
    -25°C to 85°C (-13°F to 185°F)
  • Weight
    2.5g / 0.005lbs
  • Dimensions
    20 x 28 x 2.8mm / 0.07”x 0.09”x 0.009”

¹ Up to 1800MB/s read transfer, write speeds lower. Speeds based on internal testing. Actual
speed may vary depending on host device.

² 2 Limited lifetime warranty is limited to 10 years from purchase in Germany and regions not
recognizing lifetime warranty.

³ Future-proofed to support 12K RAW video when available in host device.

⁴ Based on internal testing, a card with pSLC technology achieved 100,000 P/E cycles, 30 times
that of normal TLC.

⁵ Temperature-Proof: Operation -12°C to 72°C, Storage -25°C to 85°C

Vibration Resistant: 10~2000Hz
Wear-out resistance: up to 12,000 times of plugging and unplugging
IP5X Dust-Proof
5-meter drop-proof
Shock Resistant: 1500G shock
150N pressure resistance

Warning: CFexpress™ Type A cards are only compatible with devices that support the CFexpress™
format. Highest transfer speed achieved only when used with a CFexpress™ Type A reader,
indicated by a boxed USB logo on the product. Contact your device manufacturer for details.
Lexar is not liable for any loss of data or images.

Product appearance, performance, software offerings, and packaging may vary depending on
ship date and available inventory.
Actual usable memory capacit

Part Numbers

North America
  • Capacity
    Part Number
    MSRP
  • 640GB
    LCAEXD4640G-RNENG
    $799.99
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