Speed Class 3

Transcend Speed UHS-I Class 3 SD Cards

Transcend has launched two new product lines of SD cards with UHS-I Speed Class 3 ratings, which provide a minimum sustained write speed of 30MB/s. The higher minimum write speed meets the requirements of 4K video capture from existing 4K cameras like the Sony FDR-AX100, Panasonic Lumix GH4 and Canon EOS C500. [click to continue…]

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SanDisk_Extreme_PRO_SDXC_280MBs_NoClass_Front_64GB_HR

SanDisk has released new UHS-II SD cards with write speeds up to 250MB/s and read speeds up to 280MB/s. This new line gets its major speed boost from the UHS-II bus interface. Most SD-compatible cameras currently on the market support UHS-I, at best; however, we are just starting to see new cameras with UHS-II support (like the Fuji X-T1).

The new UHS-II bus interface offers the ability to build cards with up to 312MB/s transfer speeds, which is a big jump from the maximum theoretical speeds on the UHS-I interface at 104MB/s. [click to continue…]

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Kingston SDXC UHS-I U3 64GB Memory Card

To go along with the new Panasonic GH4 4K camera that will be announced later tonight / early tomorrow, Kingston is first out of the gate with its official announcement of a new SDHC/SDXC UHS-I Speed Class 3 card in 16GB, 32GB and 64GB capacities. The new Speed Class 3 card guarantees minimun write speeds of 30MB/s.

The minimum write speed of these cards translates to roughly 240Mbps, which fits well within the max on-board data rate of the Panasonic GH4′s 4K capture at 100Mbps for its IPB .mov/.mp4 4K capture and 200Mbps for its ALL-Intra .mov and .mp4 HD capture.¬†Additionally, the new Kingston card¬†provides max speeds of 90MB/s read and 80MB/s write.

Pricing isn’t all that bad either, considering the performance they offer. The 16GB cards run around $40 street and the 64GB cards are around $105 street. Check them out here on Amazon.com.

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