Designed specifically for the QNAP dual-controller all-flash array Enterprise ZFS NAS (ES2486dc), the QDA-SA3 2.5" SAS to SATA III Drive Adapter allows the use of a compatible 2.5" SATA III drive in a 2.5" SAS disk tray model TRAY-25-NK-BLK04. With a maximum throughput of 6 Gb/s, each of the adapters in this 4-pack supports SAS dual porting for redundancy, which helps to enhance reliability and performance by eliminating single points of failure. This benefit is provided to SATA drives when installed into a dual-controller all-flash Enterprise ZFS NAS using the QDA-SA3 adapter.