Dual Channel Mini-SAS I/O FMC
FM550 - Sundance Multiprocessor Technology Ltd.
The FM550 is an I/O module equipped with two external mini-SAS x4 connectors. I/O FMCs of this sort are typically used to provide inter-module connectivity via the front-panels of carrier cards fitted with similar interfaces, or fan-out to multiple external devices such as mini-SAS drives.