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USB 3.0 Flash Drive Speed Tests - VID = 21c4, PID = cd1

Welcome to Speed Tests Web site for USB 3.0 Flash Drives/Disks.
In this page, you can find the speed test results of USB 3.0 flash drives or disks, made by USBDeview utility. USBDeview make this test by writing a large file into the USB 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
Lexar Jumpdrive M35 Lexar USB Flash Drive USB Device 28.89 GB21c4cd1147.78 MB/Sec59.37 MB/SecGadash
Lexar Jumpdrive M35 USB Flash Drive USB Device 28.89 GB21c4cd1151.52 MB/Sec60.00 MB/SecGadash
Lexar Jumpdrive M37 USB Flash Drive USB Device 28.89 GB21c4cd1151.52 MB/Sec60.00 MB/SecGadash
Lexar Jumpdrive S47 128GB 119.21 GB21c4cd1240.00 MB/Sec53.35 MB/SecG_Singh
Lexar JumpDrive S57 32GiB 28.89 GB21c4cd1112.92 MB/Sec55.90 MB/SecGadash
Lexar Jumpdrive S75 128GB 117.16 GB21c4cd1230.18 MB/Sec8.09 MB/Sec 
Lexar Jumpdrive S80 32GB 3.1 28.89 GB21c4cd1125.17 MB/Sec34.29 MB/Sec9INE
Lexar Jumpdrive V100 USB 3.0 28.89 GB21c4cd1140.41 MB/Sec64.70 MB/Secsolarium_rider
Lexar M45 - 64GB 59.62 GB21c4cd1250.00 MB/Sec38.15 MB/Sec 
Lexar m45 64GB 59.62 GB21c4cd1250.00 MB/Sec36.69 MB/Secbdw
Lexar S57 116.06 GB21c4cd1230.77 MB/Sec6.99 MB/Sec 
Lexar S57 116.06 GB21c4cd1230.18 MB/Sec73.83 MB/Sec 
Lexar S75 @%^GB Jumpdrive USB Flash Driv 231.04 GB21c4cd1261.63 MB/Sec110.84 MB/Sec 
Lexar S80 14.54 GB21c4cd1140.41 MB/Sec71.09 MB/Sec 
Lexar USB Flash Drive 128gb 117.16 GB21c4cd1230.18 MB/Sec75.82 MB/SecOlaf
Lexar USB Flash Drive 32GB S80 28.89 GB21c4cd1115.24 MB/Sec29.54 MB/SecRavencore17
Lexar USB Flash Drive 64gb 117.16 GB21c4cd1240.00 MB/Sec70.26 MB/SecOlafson
Lexar USB Flash Drive JumpDrive S47 119.21 GB21c4cd1155.98 MB/Sec49.32 MB/Sec 
Lexar USB Flash Drive M45 64GB 57.60 GB21c4cd1240.00 MB/Sec28.37 MB/SecMaRiO_KrK
Lexar USB Flash Drive USB 3.1 Device 116.03 GB21c4cd1221.67 MB/Sec72.00 MB/Sec 
Lexar USB Flash Drive USB Device 57.61 GB21c4cd1125.17 MB/Sec40.56 MB/Sec 
Lexar USB Flash Drive USB Device 116.03 GB21c4cd1240.64 MB/Sec13.14 MB/Sec 
Lexar USB Flash Drive USB Device 57.61 GB21c4cd1125.35 MB/Sec65.45 MB/SecJan
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1122.62 MB/Sec11.93 MB/Secmoh erbil
Lexar USB Flash Drive USB Device 59.61 GB21c4cd1250.70 MB/Sec41.74 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1101.12 MB/Sec39.74 MB/Sec 
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1128.02 MB/Sec49.64 MB/Sec 
Lexar USB Flash Drive USB Device 29.79 GB21c4cd1230.18 MB/Sec37.89 MB/Sec 
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1128.02 MB/Sec11.80 MB/SecOmar Belmahi
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1213.27 MB/Sec22.16 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1230.18 MB/Sec27.82 MB/Sec 
Lexar USB Flash Drive USB Device 58.33 GB21c4cd1230.18 MB/Sec74.81 MB/SecOlaf
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1240.00 MB/Sec29.24 MB/Sec 
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1140.41 MB/Sec60.00 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1191.90 MB/Sec30.32 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1230.77 MB/Sec22.86 MB/Sec 
Lexar USB Flash Drive USB Device 31.99 GB21c4cd1250.70 MB/Sec34.48 MB/Secsww
Lexar USB Flash Drive USB Device 117.18 GB21c4cd1213.27 MB/Sec8.04 MB/Sec 
Lexar USB Flash Drive USB Device 117.16 GB21c4cd1230.77 MB/Sec60.61 MB/Sec3144
Lexar USB Flash Drive USB Device 117.19 GB21c4cd1250.70 MB/Sec64.70 MB/Sec 
Lexar USB Flash Drive USB Device 116.06 GB21c4cd1250.00 MB/Sec7.31 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1205.48 MB/Sec22.95 MB/Sec 
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1221.13 MB/Sec85.96 MB/SecNeptune2
Lexar USB Flash Drive USB Device 116.03 GB21c4cd1240.00 MB/Sec85.96 MB/Sec 
Lexar USB Flash Drive USB Device 57.71 GB21c4cd1102.86 MB/Sec35.56 MB/Secd
Lexar USB Flash Drive USB Device 58.93 GB21c4cd1164.53 MB/Sec31.30 MB/Sec 
Lexar USB Flash Drive USB Device 116.03 GB21c4cd1198.68 MB/Sec60.12 MB/Sec 
Lexar USB Flash Drive USB Device 117.19 GB21c4cd1230.77 MB/Sec64.01 MB/SecLarryL
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1115.24 MB/Sec26.91 MB/SecRavencore17
Lexar USB Flash Drive USB Device 57.61 GB21c4cd10.38 MB/Sec0.09 MB/Sec 
Lexar USB Flash Drive USB Device 117.16 GB21c4cd1240.00 MB/Sec76.79 MB/Sec 
Lexar USB Flash Drive USB Device 57.60 GB21c4cd1151.77 MB/Sec48.00 MB/Sec 
Lexar USB Flash Drive USB Device 28.89 GB21c4cd1144.00 MB/Sec81.08 MB/SecHansmillerTdS
Lexar USB Flash Drive USB Device (fake?) 116.06 GB21c4cd1250.70 MB/Sec7.16 MB/SecMM
Lexar USB Flash Drive USB Device 128gb 117.16 GB21c4cd1240.00 MB/Sec66.23 MB/SecOlaf
Lexar USB Flash Drive USB Device Jumpdrive E31 116.06 GB21c4cd1151.52 MB/Sec73.83 MB/Secxrx
Lexar USB Flash Drive USB Device jumpdrive s57 28.99 GB21c4cd192.98 MB/Sec6.93 MB/Sec 
Lexar USB JumpDrive S57 USB3.0 28.89 GB21c4cd1140.41 MB/Sec68.60 MB/Sec 
Lexar USB Jumpdrive V100 28.87 GB21c4cd194.44 MB/Sec11.36 MB/SecRKMI
Lexar USB Jumpdrive V100 28.87 GB21c4cd194.44 MB/Sec57.62 MB/SecRKMI

Total number of records: 60