14 DAY TRIAL // The SDXC and SDHC memory card formats are the highest-end, and physically large, memory cards made for solid camera and video equipment. The new Kingmax series of memory cards stick to them only.
Called Kingmax Pro Extreme Series, the new collection of memory cards is made of three models, since the SDXC comes in 64 GB only, and SDHC are of 16 GB and 32 GB.
The 16 GB one is a good enough option for photographers, but only the latter will allow videos of Full HD quality (1920 x 1080 pixels), with or without 3D, to be recorded in decent length (up to 320 minutes of 1080p/28 Mbps resolution, or 11,440 photos).
In order to properly record such media, a high writing speed is essential, one that only the SDHC and SDXC standards enable.
Sure enough, the Pro Extreme Cards can attain 60 Mb/s (UHS-1 speed mode SDR104 is supported apparently). UHS stands for ultra-high speed.
That said, Kingmax implemented ECC and wear leveling functions, to ensure a long lifespan for the card and long-term integrity for the data stored within.
Furthermore, the newcomers are physically tough as well: temperature proof, shock proof, x-ray proof and magnet proof, “meaning you can take your memory anywhere you take your devices without worrying that your data is safe.”
For those that want to know exactly what each card is capable of, the 16 GB and 32 GB SDHC Pro Extreme read data at up to 80 MB/s and 85 MB/s, respectively, while writing is done at 40 MB/s.
As for the 64 GB SDXC model, it can read as fast as 90 MB/s and write at, as we have mentioned before, 60 MB/s.
All three comply with SDA 3.0 standard and qualify as Class 10. No prices known so far though, sadly.