SCT USB 2.0 Compact Flash Card Reader / Writer (R.559) for Canon EOS Digital Rebel XT XTi 5D Mark II III IV EOS-1D C EOS-1D X EOS 7D Nikon D800 D800E D4 D3S D300S The Compact flash memory Card Reader/Writer will speed up your download time! Save your precious camera batteries!! Works with CF memory Cards. Download Up to 1.5MB/s (Macs), 12MB/s (PC's)! You can use the Compactflash Card Reader/Writer as a mini-disk-drive. Very light weight and portable. Plugs into your USB port.