The 16GB, 32GB, and 64GB model are rated at “up to 45MB/s read, 20MB/s write”. Avoid the 8GB model as it has a lower rating of “up to 40MB/s read, 10MB/s write”. In addition, the 16GB model can often be found cheaper when on sale for $9.99.
Benchmarked is the 16GB model formated to have a single fat32 partition.
The device is fairly bulky but made of a colorful sturdy plastic. It will still fit in a loose pocket and is hard to lose. Unlike other cheap drives, the performance is in the ballpark of the advertised ratings. Outstanding performance for the price especially when compared to other $10 flash drives. Even though it is USB 3.0 rated, performance matches that of a USB 2.0 rating. The read speeds may be slightly better on a USB 3.0 port, but the claimed write speed is within the performance of a USB 2.0 port. The benchmarks performed were on a USB 2.0 port and come close to the claimed 20MB/s write speed.
The Lexar JumpDrive S73 (16GB, 32GB, 64GB) are easily worth the price for the USB 2.0 performance alone. The benchmarks confirm this. On the other hand, the USB 3.0 performance, based on the specs provided by Lexar, are disappointing and nowhere near maximum USB 3.0 throughput speed. Also avoid the 8GB model as it has a lower read and write speed.
Lastly, the S73 does not come with a lanyard. Despite the omission, these are great USB 2.0 flash drives for the $10 price range.
fdisk -l /dev/sdi
Disk /dev/sdi: 16.0 GB, 16022241280 bytes 255 heads, 63 sectors/track, 1947 cylinders, total 31293440 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/sdi1 * 128 31293439 15646656 c W95 FAT32 (LBA)
Device Read Benchmark (USB 2.0)
hdparm -t /dev/sdi1
/dev/sdi1: Timing buffered disk reads: 112 MB in 3.04 seconds = 36.89 MB/sec
Device Write Benchmark: 1MB x 1000 (USB 2.0)
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, 53.2811 s, 19.7 MB/s
Device Write Benchmark: 10MB x 100 (USB 2.0)
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, 56.9985 s, 18.4 MB/s
Device Write Benchmark: 100MB x 10 (USB 2.0)
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, 56.7316 s, 18.5 MB/s
Device Write Benchmark: 500MB x 2 (USB 2.0)
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, 60.0048 s, 17.5 MB/s
Device Write Benchmark: 1000MB x 1 (USB 2.0)
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, 57.1006 s, 18.4 MB/s
USB 3.0 benchmarks have been performed. Results can be found here.