Please note that this card does not have array function. Up to 24 HDD hard disks can be connected through 6 xSFF-8087. Full-height design supports SAS/ 1.5, 3, 6Gb/s transmission rates and supports enhanced features. SAS expanders provide large storage environments, can connect multiple targets and initiators through switching devices, achieve scalability and fault-tolerant redundancy to improve system reliability, and are ideal for today's data centers and storage subsystems. This expansion card is ideal for high-availability and scalable server cluster environments and front-end storage subsystems for clusters, SANs, and NAS environments. Specifications: Main control chip: 2008 + SAS 2X36 Interface: 6 * SFF-8087 Support hard disk: 24 * SAS/ hard disk Colour:Green Material:PCB+Metal Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Adapter card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.