Lexar Professional CFexpress 4.0 Type B Diamond Series 512GB

The Lexar Professional CFexpress 4.0 Type B Diamond Series 512GB is engineered on the PCIe Gen 4.0 x2 interface architecture, leveraging the CFexpress 2.0 specification to deliver peak sequential read speeds of up to 3400 MB/s and peak sequential write speeds reaching approximately 3100 MB/s. Built on high-density 3D TLC NAND flash with an advanced NVMe 1.3 controller, the Diamond Series is designed to sustain these transfer rates over extended recording sessions, eliminating buffer overflow interruptions that can compromise high-bitrate capture. The card's thermal management system incorporates passive heat-dissipation structures within its compact XQD-compatible form factor to maintain consistent performance even under continuous write loads typical of cinema-grade recording environments.

Targeted at cinematographers, broadcast engineers, and sports photographers operating RED, Canon EOS-1D X, Nikon Z, and Sony Alpha series cameras that support CFexpress Type B media, the Diamond Series 512GB provides sufficient capacity for hours of RAW 8K video or thousands of high-resolution burst-mode still frames. The sustained write performance ensures compatibility with codecs demanding constant bitrates above 1.5 Gbps, including Apple ProRes RAW HQ, REDCODE RAW, and Canon Cinema RAW Light at maximum quality settings. The card meets the CFexpress 2.0 standard's mandatory power management protocols, keeping idle draw low during live-view standby and maximizing active burst performance on demand.

What distinguishes the Diamond Series within Lexar's Professional lineup is its PCIe 4.0 double-lane implementation, offering nearly double the theoretical bandwidth ceiling versus PCIe 3.0-based CFexpress cards. This headroom ensures forward compatibility with next-generation camera platforms and card readers that fully exploit Gen 4 speeds. A dedicated wear-leveling algorithm and over-provisioned NAND pool extend endurance across high-cycle professional workflows, while the card's aluminum-composite shell provides both EMI shielding and physical durability suitable for field production environments, including dust-prone and vibration-intensive shooting locations.

Ideal for

• Cinema and episodic television production requiring uninterrupted 8K RAW recording at sustained bitrates exceeding 1.5 Gbps across multi-hour takes
• Sports and wildlife burst photography where sequential write endurance supports continuous RAW+JPEG capture at 20+ frames per second without buffer stalling
• Broadcast news acquisition using CFexpress Type B cameras in ENG workflows demanding rapid in-field offload to PCIe 4.0 card readers between assignments
• Commercial and advertising studio photography leveraging large-capacity storage to accommodate tethered high-resolution medium-format equivalent file volumes
• Documentary filmmaking in remote locations where a single high-capacity, high-durability card reduces the number of media swaps and associated risk of data loss
• Post-production proxy ingest pipelines where fast card-to-workstation transfer via Thunderbolt-attached PCIe 4.0 readers accelerates editorial turnaround

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.