Intel SRCSASRB Hardware User Guide - Page 12

Figure 2. Installing the Intel® RAID Controller SRCSASRB 5. For the first four drives, ports 0 - 3, connect one 4-port combined end of an internal cables to the upper connector. If you are using more than four drives without using an expander backplane, connect the second cable to the lower connector. See the following figure. To prevent throughput problems, use the cables provided or use the shortest possible cable. Do not use cables longer than one meter. Decrease the maximum length by one foot if using a backplane. Do not use cross-over cables. Only connect to a SATA drive, SAS or SATA backplane, or an expander device. Route the cables carefully. Check that controller and cables are all properly attached. 7 Intel® RAID Controller SRCSASRB Hardware User's Guide