Operating System Requirements: macOS 10.12-10.13 File Name: SxS_Drv_Installer_mac_v300.dmg File Size: 155 KB Description: SxS driver for macOS supports Sonnet SF3 Series SxS PRO X Card Reader, SF3 Series SxS Pro Card Reader, SxS PRO X Thunderbolt 3 Single Slot Reader, Echo ExpressCard Thunderbolt Adapter, Qio, and Qio E3.
Legacy version 3.1.0 supports macOS 10.12 (Sierra)-10.13 (High Sierra). This version is not compatible with Intel and M1 Macs.
Sonnet measured read performance for three manufacturers' 600X (90MB/sec) CF cards in the Qio, connected to a MacBook Pro:
Lexar Professional 600X...86MB/sec
Transcend 600X...............71MB/sec
SanDisk Extreme Pro........61MB/sec