Customer Review

TOP 1000 REVIEWER
Reviewed in Australia on 20 August 2019
Genuine SanDisk product.

Been used with Gopro for 4k video shooting in the last few weeks without any problem.

Testing software also reflects good R/W speed.

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CrystalDiskMark 6.0.2 x64
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* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 70.451 MB/s
Sequential Write (Q= 32,T= 1) : 43.754 MB/s
Random Read 4KiB (Q= 8,T= 8) : 9.564 MB/s [ 2335.0 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 2.546 MB/s [ 621.6 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 9.657 MB/s [ 2357.7 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 2.566 MB/s [ 626.5 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 7.996 MB/s [ 1952.1 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 2.520 MB/s [ 615.2 IOPS]

Test : 1024 MiB [E: 0.0% (0.0/366.8 GiB)] (x5) [Interval=5 sec]
OS : Windows 10 Professional (x64)

______________________________________________________________________________
Update for another 200gb card bought during black friday sale.

CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q= 8, T= 1): 48.236 MB/s [ 46.0 IOPS] <171142.40 us>
Sequential 1MiB (Q= 1, T= 1): 48.031 MB/s [ 45.8 IOPS] < 21798.44 us>
Random 4KiB (Q= 32, T=16): 9.271 MB/s [ 2263.4 IOPS] <113882.10 us>
Random 4KiB (Q= 1, T= 1): 8.907 MB/s [ 2174.6 IOPS] < 458.67 us>

[Write]
Sequential 1MiB (Q= 8, T= 1): 40.474 MB/s [ 38.6 IOPS] <200273.69 us>
Sequential 1MiB (Q= 1, T= 1): 41.524 MB/s [ 39.6 IOPS] < 25199.06 us>
Random 4KiB (Q= 32, T=16): 2.852 MB/s [ 696.3 IOPS] <198350.88 us>
Random 4KiB (Q= 1, T= 1): 2.895 MB/s [ 706.8 IOPS] < 1412.82 us>

For anyone interested, 200gb card tested with Gopro 8 4k@60FPS HEVC video capture, didn't see difference with the faster U3 standards card.
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5.0 out of 5 stars Bang for the buck
By John on 20 August 2019
Genuine SanDisk product.

Been used with Gopro for 4k video shooting in the last few weeks without any problem.

Testing software also reflects good R/W speed.

-----------------------------------------------------------------------
CrystalDiskMark 6.0.2 x64
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 70.451 MB/s
Sequential Write (Q= 32,T= 1) : 43.754 MB/s
Random Read 4KiB (Q= 8,T= 8) : 9.564 MB/s [ 2335.0 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 2.546 MB/s [ 621.6 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 9.657 MB/s [ 2357.7 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 2.566 MB/s [ 626.5 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 7.996 MB/s [ 1952.1 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 2.520 MB/s [ 615.2 IOPS]

Test : 1024 MiB [E: 0.0% (0.0/366.8 GiB)] (x5) [Interval=5 sec]
OS : Windows 10 Professional (x64)

______________________________________________________________________________
Update for another 200gb card bought during black friday sale.

CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q= 8, T= 1): 48.236 MB/s [ 46.0 IOPS] <171142.40 us>
Sequential 1MiB (Q= 1, T= 1): 48.031 MB/s [ 45.8 IOPS] < 21798.44 us>
Random 4KiB (Q= 32, T=16): 9.271 MB/s [ 2263.4 IOPS] <113882.10 us>
Random 4KiB (Q= 1, T= 1): 8.907 MB/s [ 2174.6 IOPS] < 458.67 us>

[Write]
Sequential 1MiB (Q= 8, T= 1): 40.474 MB/s [ 38.6 IOPS] <200273.69 us>
Sequential 1MiB (Q= 1, T= 1): 41.524 MB/s [ 39.6 IOPS] < 25199.06 us>
Random 4KiB (Q= 32, T=16): 2.852 MB/s [ 696.3 IOPS] <198350.88 us>
Random 4KiB (Q= 1, T= 1): 2.895 MB/s [ 706.8 IOPS] < 1412.82 us>

For anyone interested, 200gb card tested with Gopro 8 4k@60FPS HEVC video capture, didn't see difference with the faster U3 standards card.
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