I'm making the assumption that you're looking for internal vs. external connectors. Here are some SATA/SAS hardware RAID controllers that work with macOS, with approximate prices for comparison:
- Broadcom LSI MegaRAID SAS 9271-8iCC ~ $200 (SAS)
- Sonnet FUSRCE Fusion D8/DX8 ~ $1000 (SAS)
- ATTO Technology ExpressSAS R644 ~ $400 (SAS)
- ATTO Technology ExpressSAS R608 ~ $600 (SAS)
- HighPoint Technology RocketRAID 2640x1 ~ $150 (SAS)
- HighPoint Technology RocketRAID 2710 ~ $185 (SAS)
- HighPoint Technology RocketRAID 2720SGL ~ $160 (SAS)
- HighPoint Technology RocketRAID 840A ~ $290 (SATA)
- HighPoint Technology RocketRAID 640L ~ $100 (SATA)
- Areca ARC-1203-4i ~ $350 (SATA)
SATA/SAS expansion cards that you can use with software RAID include:
- Areca ARC-1320-8i ~ $315 (SAS)
- StarTech SSD RAID Controller Card with 2x M.2 NGFF and 2x SATA III Ports ~ $120 (SATA)
- StarTech PEXSAT34RH 4 Port SATA III RAID Controller Card ~ $65 (SATA) - the hardware-assisted RAID only works in Windows, but works as SATA card in MacOS (Marvell 88SE9230 controller)
- Avago Technologies SAS 9207-8i ~ $250 (SAS)
- ATTO ExpressSAS H608 ~ $315 (SAS)
- SYBA SD-PEX40104 8-Port SATA III Card ~ $80 (SATA)
- SYBA SI-PEX40071 8 Internal SATA III Ports PCIe Card ~ $80 (SATA)