Features: 1.4 standard 6GB SATAinterfaces. the maximum single disk capacity supports 8TB. 2.4 SATA hard drives can be connected, and 4 interfaces can reach 6GB full speed at the same time. 3.Excellent performance and stability. 4.Support multiple system, good compatibility. 5.For Windows10 or 8 or 7 comes with driver, plug and play. specification: 1. 4 standard 6GB SATAinterfaces. the maximum single disk capacity supports 8TB. 2. 4 SATA hard drives can be connected, and 4 interfaces can reach 6GB full speed at the same time. 3. Excellent performance and stability. 4. Support multiple system, good compatibility. 5. For Windows10 or 8 or 7 comes with driver, plug and play. s: Model: 9212-4i Status: open box Interface: PCI-E x8 or x16 Support hard disk: Support 8TB hard disk, including SATA . Support 4 hard disks simultaneously Hard disk interfaces: 4 Chipsatz: LSI 2008 RAID-Level: 0 or 1 or 1E or 10 Compatible system: for Windows10 or 8 or 7 comes with a plug-and-play driver, for win7 pure system and for XP need to manually install the driver, support for QunHui 5.2 or 6.0 or 6.1 (black skirt), no need to install any driver, directly recognize the disk. Working mode: Dual mode optional Working mode 1: IR mode Working mode 2: IT mode (P20 version latest firmware) Size: about 170x120x20MM or 6.69x4.72x0.79in Package List: 1 x Array Card Note: What is the difference between the IT and IR modes for the firmware of the LSI HBA card The two firmware types are Initiator Target (IT) and Integrated RAID (IR). IR is the typical hardware RAID firmware that the internal cards or boards ship with. This product is shipped in batches, and make sure you will not mind before ordering.