I certainly would not buy a very large expensive
Class 4 chip. 15 MB/s is pretty pathetic when a
lot of CF cards can reach 70 or more. It would
take 71 minutes to copy a full card onto your
computer HDD. All my SD cards for the last two
years have been Class 6. Class 4 might be okay
for recording an HD video stream, but when
you're transferring all that accumulated data
off the chip to your PC the speed makes a big
difference.
SanDisk has debuted a new member to their SD memory card family, and it’s their highest capacity yet: the 64GB SanDisk Ultra SDXC, all ready to handle work from a wide array of gadgets.
The Class 4 SDXC card boasts a read speed up to 15MB per second and an SD 3.0 specification. While this card can be paired with mobile phones, Blu-ray players and recorders, computers and digital cameras, SanDisk is really pushing the video aspect.
Self-touted as “ideal” for holding and transferring 1080p HD video files, and it can store up to eight hours of HD footage at a recording speed of 9 Mbps. And thanks to the integration of the exFAT file structure, videographers can shoot longer HD videos rather than just blips here and there.
This isn’t a memory card you’ll want to toss around or risk losing, as it costs $349.99. That includes a lifetime limited warranty, and in the fine print, that “limited” means only 10 years in some areas.
