SanDisk SDCFXSB-032G-G46 32GB Extreme CF Card

The SanDisk Extreme SDCFXSB-032G-G46 is a 32GB CompactFlash card rated for sequential read speeds up to 120MB/s and write speeds up to 60MB/s. In practical terms, the read speed means fast offloading when you slot this card into a USB 3.0 CF reader — a 32GB card full of images transfers in roughly four to five minutes. The 60MB/s write speed, while not at the top of the CF performance ladder, provides enough throughput to keep pace with standard burst shooting on professional bodies like the Canon 5D Mark IV or Nikon D810 without excessive buffer wait times.

This card fits a specific niche: photographers and videographers who are still operating CF-slot cameras and need reliable, affordable storage. At 32GB, it is best suited as a secondary card, a backup, or for assignments where you are not burning through thousands of frames. The Class 10 designation guarantees a minimum sustained write speed that supports HD video recording, though 4K workflows will push past its limits. For its intended use case — dependable CompactFlash storage with respectable speed at a reasonable capacity — the SanDisk Extreme delivers exactly what the specs promise without surprises.