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B&H Photo has the Lexar 128GB Professional CFexpress DIAMOND 2-packs for $229 (Reg $429) today. These cards are aimed at photographers for CFexpress redundancy. The DIAMOND series cards can handle 8K RAW from the EOS R5 series, but you'd have about 3 minutes of record time.
Lexar claims that the DIAMOND series cards are built better and can handle shocks and extreme temperatures better than their other lines of cards.
Purchase Options
Lexar DIAMOND Overview
- 128GB Storage Capacity per Card
- PCIe 3.0 x2 / NVMe Protocols
- Max Read Speed: 1900 MB/s
- Max Write Speed: 1700 MB/s
- Min. Sustained Write Speed: 1600 MB/s
- VPG-400 Compliant at 400 MB/s
- Records Raw 8K, 6K, 4K, and Beyond
- Records High-Quality Images
- Shock / Vibration / Temperature Proof
From the field to post production, the 128GB Professional CFexpress Type B Card DIAMOND Series (2-Pack) from Lexar is designed to meet the demands of professional filmmakers and content creators.
These cards deliver read speeds of up to 1900 MB/s, write speeds of up to 1700 MB/s, and minimum sustained write speeds that won't drop below 1600 MB/s, all of which allows you to capture smooth raw 8K, 6K, 4K, and beyond video.

Additionally, they are compliant with the VGP-400 video class standard, which guarantees write speeds of at least 400 MB/s.
Designed to leverage the capabilities of next-generation cinema cameras, mirrorless cameras, and DSLRs, these cards utilize the PCI Express 3.0 x2 and NVMe protocols to provide high-speed performance, durability, and reliability.
They are resistant to shock and vibration, as well as temperatures ranging from 14 to 158°F.
