ATTO Technology Announces Full Support for macOS Tahoe 26

ATTO Technology, Inc. announced comprehensive support for macOS Tahoe 26, including official support for DriverKit (DEXT) drivers across its product portfolio.“With macOS Tahoe, we’re delivering immediate support and introducing our DEXT-based drivers to ensure our customers experience seamless, high-performance workflows,” said Tim Klein, president and CEO, ATTO Technology. “This dual-driver approach – offering both DEXT and KEXT options – demonstrates our commitment to flexibility and integration within Apple’s ecosystem.”

The company specializes in high-performance connectivity solutions, including Fibre Channel HBAs, SAS/SATA HBAs, Ethernet NICs, NVMe adapters, Thunderbolt adapters, and intelligent bridges. These products are designed for industries such as media and entertainment, government, education, and scientific research, enabling professionals to maximize the capabilities of Apple computers, laptops, and workstations.

Products supporting macOS Tahoe 26 include:

• Celerity 32 and 64Gb/s (Gen 7), 16 and 32Gb/s (Gen 6) and 8Gb Fibre Channel host bus adapters (HBAs) with ATTO MultiPath Director and new Celerity 5 DEXT v1.00.9 driver supporting 16/32/64Gb Celerity HBAs.
• ExpressSAS 24Gb and ExpressSAS GT 12Gb SAS/SATA HBAs with DEXT driver support coming soon.
• ThunderLink Thunderbolt adapters, including the new ThunderLink Thunderbolt 5 devices, for Fibre Channel, SAS, and Ethernet, supported by DEXT drivers.
• Atto Thunderlinkfc5642 10/25/40/50/100GbE SmartNICs with ATTO360 Networking v1.05.2, which installs DEXT drivers by default on macOS 26 and KEXT drivers on older macOS versions.

Software Solutions:

• ATTO360 Storage Software which combines ATTO ConfigTool, ATTO360, and MultiPath Director with enhanced performance, improved help sections, and optimized processing.
• ATTO Xtend SAN iSCSI Initiator for macOS, XstreamVIEW, Express NAV and QuickNAV

DEXT (DriverKit system extensions) drivers are Apple’s modern alternative to KEXT (Kernel Extension) drivers, improving security and stability while maintaining high performance. With this release, ATTO is providing DEXT-based drivers for Celerity, FastFrame, ExpressSAS, and ThunderLink devices on macOS. Customers may choose between DEXT and KEXT depending on their workflow and operating system version.