RIITOP 6-Port SATA III 6 Gbps RAID Controller ASM1166 PCIe x4

Six SATA III ports via PCIe x4

This RIITOP controller adds six 6 Gbps SATA III ports through a single PCI Express x4 slot using the ASMedia ASM1166 chipset. It is designed for builders who need to connect multiple hard drives or SSDs to a desktop, workstation or NAS platform. The card fits x4, x8 or x16 slots and operates with native AHCI support across Windows, Linux and macOS without extra drivers.

Suits storage expansion without hardware RAID

The board provides six AHCI ports and supports port-multiplier command-based switching, making it a good match for JBOD arrays, software RAID setups or simple drive multiplication. It cannot perform hardware RAID on its own; systems that need RAID must rely on the motherboard firmware or host-based software. Buyers who require a dedicated RAID processor or bootable hardware arrays should look at a different controller.

ASM1166 single-chip PCIe 3.0 x4 interface

The ASM1166 chip delivers a native PCI Express 3.0 x4 host connection and six downstream SATA 3.0 ports that are backward compatible with 1.5 and 3.0 Gbps drives. This single-chip design determines the maximum aggregate bandwidth and the number of drives you can attach directly.