USB-C drives benchmark sequential write/read 1GB

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All sequential 1GB (QD32) write/read speeds meassured with the tool AmorphousDiskMark 1.2.3. Drives connected to the the rear USB4/Thunderbolt 5 port of a Mac Mini M4 Pro utilizing the cable coming with the drive. Meassured in factory condition, typically ExFat formated and 2-3% used for additional tools and manuals.

Please note that connecting those USB-C drives to mobile phones will provide you with much lower transfer speeds. Even the latest, most popular phones like the iPhone 17 (USB2.0 real world 15 MB/s) and the Samsung Galxy S25 Ultra (USB 3.2 Gen 1 real-world 300 MB/s) will severely limit the transfer. On the iPhone 17 Pro (USB 3.2 Gen 2) you can expect up to 600 MB/s. So creating an backup of a 200GB photo library can take 6 to 12 Minutes on a Pro/Ultra Phone but can require multiple backup/recharge cycles on a standard phone.

WriteReadDriveConnection
3.554 MB/s3.842 MB/sWD Black SN850X 4TB Satechi NVMe SSD ProUSB 4
1.389 MB/s2.878 MB/sFreecom mSSD Celeritas 1 TBThunderbolt 3
934 MB/s919 MB/sVerbatim SnapBack Ultra Slim 1TBUSB 3.2 Gen2x2
922 MB/s912 MB/sVerbatim Store 'n' Go Mini Diamond 1TBUSB 3.2 Gen 2
918 MB/s914 MB/sVerbatim SnapBack 1TBUSB 3.2 Gen2x2
875 MB/s942 MB/sVerbatim Pocket SSD 1TBUSB 3.2 Gen2
898 MB/s932 MB/sSurfire PyroDriveGaming SSD Slim 1TBUSB 3.2 Gen2
419 MB/s392 MB/sVerbatim Dual QuickStick 128GBUSB 3.2 Gen1
26 MB/s148 MB/sSanDisk Ultra Dual Drive 32GBUSB 3.2 Gen1
21 MB/s147 MB/sVerbatim Plectra 512GBUSB 3.2 Gen1
36 MB/s81 MB/sSanDisk Creator Phone Drive 256GBUSB 3.2 Gen1

 

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