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USB Flash Drive Speed Tests - VID = cd12, PID = ef18

Welcome to Speed Tests Web site for USB Flash Drives.
In this page, you can find the speed test results of USB flash drives, made by USBDeview utility. USBDeview make this test by writing a large file into the USB flash drive, and then reading back the same file to getting the read speed. The speed is calculated and displayed in Megabytes per second (MB/Sec). Be aware that all these tests are made by making a sequential read and write operations of a single file. When you use multiple small files, you'll probably get much lower read/write performances.

If you want to test the read/write speed of your own USB drives and share the results with other people, you can follow the instructions in this page: Test and publish the speed of your USB flash drive.

There is also a summary page, which contains a summary of speed tests for USB drives that accumulated 5 speed tests or more.

Search other USB flash drives:

Some Remarks

To more easily compare the speed of USB flash drives, you can filter the list according to drive size group:

1 GB or less 2 GB Group 4 GB Group 8 GB Group
16 GB Group 32 GB Group 64 GB Group Larger than 64 GB

Notice that the USB devices of last size group (above 64 GB) are not really flash drives. they are external hard disk drives plugged to USB. I originally created this Web site for flash drives, but because some people already submitted the speed test results of external USB disks, I added a group for them too.

Product NameVendor NameDrive SizeVIDPIDRead SpeedWrite SpeedSubmitter
Flash Disk USB Device(Kaspersky Flash Device 4Gb) 3.81 GBcd12ef1811.20 MB/Sec3.83 MB/SecAnonim
Generic Flash Disk USB Device 31.25 GBcd12ef1814.25 MB/Sec4.26 MB/Sec 
Generic Flash Disk USB Device 3.80 GBcd12ef1817.47 MB/Sec4.22 MB/Sec 
Generic Flash Disk USB Device 7.60 GBcd12ef1818.86 MB/Sec4.83 MB/Sec 
Generic UDISK USB Device 31.23 GBcd12ef1815.22 MB/Sec3.15 MB/Sec 
Generic UDISK USB Device 3.80 GBcd12ef1813.72 MB/Sec4.10 MB/Sec 
Generic UDISK USB Device 976.55 GBcd12ef1813.88 MB/Sec4.96 MB/Sec 
Generic UDISK USB Device 7.50 GBcd12ef1813.20 MB/Sec3.69 MB/Secshani
Hotel du Palais 2Gb 1.88 GBcd12ef189.15 MB/Sec3.67 MB/Sec 
Kingston 16gb DT101 G2 15.61 GBcd12ef1816.57 MB/Sec4.53 MB/Sec 
Microsoft Frontline Partnership 2GByte 1.86 GBcd12ef1817.56 MB/Sec4.76 MB/Sec 
silicong disk USB Device 29.30 GBcd12ef1862.67 MB/Sec15.98 MB/Sec 
Toshiba N723 D32210 16gb disk 15.61 GBcd12ef1813.84 MB/Sec4.04 MB/Sec 
USB 2.0 DISK USB Device 1.91 GBcd12ef188.93 MB/Sec3.65 MB/Sec 
USB 2.0 DISK USB Device 1.90 GBcd12ef188.45 MB/Sec3.13 MB/Sec 
USB disk USB Device 1.86 GBcd12ef1812.41 MB/Sec4.00 MB/SecGeSt
USB DISK USB Device 0.97 GBcd12ef1810.91 MB/Sec6.61 MB/Sec 
USB Disk USB Device 32.04 GBcd12ef1812.57 MB/Sec3.65 MB/Sec 
USB DISK USB Device 15.63 GBcd12ef188.77 MB/Sec3.02 MB/Sec 
USB DISK USB Device 7.81 GBcd12ef1813.74 MB/Sec4.47 MB/Sec 
USB Disk USB Device 3.76 GBcd12ef187.73 MB/Sec4.03 MB/Sec 
USB DISK USB Device 3.97 GBcd12ef1814.61 MB/Sec12.46 MB/Sec 
USB DISK USB Device 1.86 GBcd12ef1811.68 MB/Sec6.60 MB/SecGeSt
USB Disk USB Device 1.91 GBcd12ef1813.47 MB/Sec3.73 MB/Sec 
USB DISK USB Device 7.81 GBcd12ef1810.72 MB/Sec13.14 MB/SecADEL SONY
USB DISK USB Device 3.90 GBcd12ef1810.39 MB/Sec4.35 MB/Sec 
USB DISK USB Device 3.86 GBcd12ef186.61 MB/Sec3.99 MB/Sec 
USB DISK USB Device 125.24 GBcd12ef1819.86 MB/Sec6.24 MB/Sec 
USB Flash Disk USB Device 0.96 GBcd12ef1812.71 MB/Sec3.81 MB/Sec 
USB Flash Disk USB Device 1.88 GBcd12ef1813.89 MB/Sec4.47 MB/SecGeSt
USB Flash Disk USB Device 3.80 GBcd12ef1810.54 MB/Sec4.46 MB/Sec 
USB Mass Storage Device 31.23 GBcd12ef188.83 MB/Sec3.59 MB/Sec 
USB Mass Storage Device 31.23 GBcd12ef189.05 MB/Sec3.56 MB/Sec 
USB Mass Storage Device 7.49 GBcd12ef1814.45 MB/Sec4.57 MB/Sec 
USB-Massenspeichergeraet 3.77 GBcd12ef188.00 MB/Sec2.45 MB/SecGeSt
USB-Massenspeichergeraet 3.75 GBcd12ef188.72 MB/Sec3.60 MB/SecGeSt
Winston Flash USB Device 1.97 GBcd12ef1818.80 MB/Sec3.16 MB/Secbig_alex

Total number of records: 37