USB-C drives benchmark sequential write/read 1GB

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.

Write MB/sRead MB/sDriveConnection
7.070 5.298Crucial T705 4TB Noname TB5 EnclosureThunderbolt 5
3.5543.842 WD Black SN850X 4TB Satechi NVMe SSD ProUSB 4
1.3892.878 Freecom mSSD Celeritas 1 TBThunderbolt 3
934919Verbatim SnapBack Ultra Slim 1TBUSB 3.2 Gen2x2
922912Verbatim Store 'n' Go Mini Diamond 1TBUSB 3.2 Gen 2
918914Verbatim SnapBack 1TBUSB 3.2 Gen2x2
875942Verbatim Pocket SSD 1TBUSB 3.2 Gen2
898932Surfire PyroDriveGaming SSD Slim 1TBUSB 3.2 Gen2
419392 MB/sVerbatim Dual QuickStick 128GBUSB 3.2 Gen1
26148SanDisk Ultra Dual Drive 32GBUSB 3.2 Gen1
21147Verbatim Plectra 512GBUSB 3.2 Gen1
3681SanDisk Creator Phone Drive 256GBUSB 3.2 Gen1