Top positive review
53 people found this helpful
Stylish versatile card reader with USB2.0 data transfer rates
on June 22, 2010
The small form factor makes the P5 a stylish accessory in my digital camera case. The P5 permits me to transfer SDHC memory card data from my digital camera at USB2.0 rates. It has a sleek stylish look. No cables are needed with the P5.
Since another reviewer indicated this P5 card reader transfers data only at USB1.1 (700-900 KB/sec) rates and not at USB2.0 (12-15 MB/sec) rates, I conducted the following transfer speed demonstrations.
I used a Transcend SDHC (16 GB) flash memory card loaded with 1.13 GB of files (3 MPEG-4 clips ~ 300MB each, 24 JPEG ~ 1 MB each). If reading this amount of data through the Transcend card reader works only at USB1.1 rates, then reading these files should take about 19 minutes. If it reads data at USB2.0 rates, then reading these files should take between 1-2 minutes. For this test, the data transfer from the SDHC through the P5 to a macbook pro took right at 60 seconds. This translates into 18.8 MB/sec average transfer rate for reading. Clearly, the Transcend P5 Card reader is capable of USB2.0 high-speed data transfers.
After deleting the files on the SDHC memory card, I timed how long it took to write 1.13 GB (same set of files) from the macbook pro back to the memory card. For this second test, the write transfer time for 1.13GB was 105 seconds. This translates into 10.7 MB/sec average transfer rate for writing. Clearly, the Transcend P5 Card reader is capable of USB2.0 high-speed data transfers in either direction.
Why buy: The USB interface permits this card reader to be compatible with nearly every computer on the planet. The P5 fits easily in my digital camera case. Transfer speed is great!