SAS 9340-8i SAS3008 M1215 12Gbps SAS HBA + 2*SFF8643 SATA Cable IR mode can be used for both pass through and RAID 0 1 (IR card without cache. Note: For RAID cards without cache, even if RAID is supported, it is still recommended to choose a RAID card for RAID) Supports single disk 1-20T, some helium disks require actual testing! The 6GB pass through card only supports 256 pass through hard disks (a single card can mount 256 disks). The 12GB pass through card can support 1024 pass through hard disks (a single card can mount 1024 disks). SAS3008 chip IIR channel card has 12Gb bandwidth SATA3 speed and SAS2308 chip IR channel card has 6Gb bandwidth SATA3 speed *Default shipping IR mode *Support single disk 146G-18T *Supports 8 SAS/SATA/SSD hard drives *Support Windows Black Synology FreeNAS, SQLite PVE direct to UNRAID