The Lexar Platinum II 200x CompactFlash (8GB) is a flash memory card that was released in 2010. Currently it is still available in stores and online. This particular card was available for around $20 at Walmart in 2013.
According to Lexar, the card’s ratings are “*Up to 30MB/s read transfer, write speeds lower. Speeds based on TestMetrix certified tester. *x=150Kbytes/s.”
Based on benchmarks below, Lexar’s ratings were fairly accurate. The read speed was an excellent 28.92 MB/s, while the write speeds were around 9.1 MB/s. In the end, this four year old memory card scored better than many modern cheap flash memory devices.
Construction wise, quality is good. The case is a mixture of metal and strong rugged plastic which is typical of most older CF cards.
Overall, this card is recommended as a cheap name brand CompactFlash card. The case is durable, and the benchmarked speeds are adequate. It will perform well in older CF compatible cameras. However, if high speed write performance matters, then this card should be avoided.
Benchmarked below is the Lexar Platinum II 200x CompactFlash (8GB) card formated to have a single fat32 partition. A standard multi-card reader on a desktop computer was used for the benchmark.
fdisk -l /dev/sdc
Disk /dev/sdc: 8002 MB, 8002584576 bytes 16 heads, 63 sectors/track, 15506 cylinders, total 15630048 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
Device Boot Start End Blocks Id System /dev/sdc1 * 63 15630047 7814992+ c W95 FAT32 (LBA)
Device Read Benchmark
hdparm -t /dev/sdc1
/dev/sdc1: Timing buffered disk reads: 88 MB in 3.04 seconds = 28.92 MB/sec
Device Write Benchmark: 1MB x 1000
dd if=/dev/zero of=tempfile bs=1M count=1000 conv=fdatasync,notrunc 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 116.842 s, 9.0 MB/s
Device Write Benchmark: 10MB x 100
dd if=/dev/zero of=tempfile bs=10M count=100 conv=fdatasync,notrunc 100+0 records in 100+0 records out 1048576000 bytes (1.0 GB) copied, 114.885 s, 9.1 MB/s
Device Write Benchmark: 100MB x 10
dd if=/dev/zero of=tempfile bs=100M count=10 conv=fdatasync,notrunc 10+0 records in 10+0 records out 1048576000 bytes (1.0 GB) copied, 113.464 s, 9.2 MB/s
Device Write Benchmark: 500MB x 2
dd if=/dev/zero of=tempfile bs=500M count=2 conv=fdatasync,notrunc 2+0 records in 2+0 records out 1048576000 bytes (1.0 GB) copied, 114.327 s, 9.2 MB/s
Device Write Benchmark: 1000MB x 1
dd if=/dev/zero of=tempfile bs=1000M count=1 conv=fdatasync,notrunc 1+0 records in 1+0 records out 1048576000 bytes (1.0 GB) copied, 116.871 s, 9.0 MB/s