小弟的RAID 卡 Adaptec RAID 5805
http://www.adaptec.com/en-US/products/Controllers/Hardware/sas/performance/SAS-5805/
8-Lane PCI-Express bus interface
0, 1, 1E, 5, 5EE, 6, 10, 50, 60, JBOD
512MB DDR2 cache
2 SFF-8087 (int.)
也就是有兩個PORT 每一條線可以接4顆硬碟,所以兩條線接滿可接8顆硬碟...