http://www.tweaktown.com/pressreleas...ard/index.html
ASRock X99 Extreme11 boasts a total of 18 SATA3 connectors on the side of the motherboard, including 10 SATA3 6.0 Gb/s connectors from Intel X99 and 8 additional SAS-3 12.0 Gb/s connectors by the added LSI SAS 3008 controller chip. Tests at ASRock's lab showed that the data transfer rate could reach an unbelievable 6.1 GB/s when SSDs were connected to the storage ports!