Protection is provided by a limited 5-year warranty.It requires four hard drives to use, and is essentially two RAID 0 sets mirroring each other. RAID 10: This is a combination of RAID 1 and RAID 0. This is similar to RAID 0 in that all you need is a couple hard drives and the RAID function in Disk Utility. RAID 1 uses two hard drives and doesn’t come with the speed advantage of RAID 0.Aqua Carbon Tk Because it is implemented with older macOS Carbon interfaces, it is only available as a 32-bit binary (usually for Intel and PowerPC processors). Aqua Cocoa support was backported to Tk 8.5 (prior to 8.5.13) and released by Apple starting with macOS 10.6 and by ActiveState starting with their 8.5.9.1 release.