As we have already mentioned, the reference SiI3124 controller is based on the Silicon Image chip with the same name:
It can support up to four SerialATA devices. There are two versions of the SiI3124 chip: one with SATA I interface (150MB/s) and another with SATA II interface (300MB/s). We managed to get hold of the second version of the controller based on SiI3124-2.
As we see, the controller card we were testing has exactly this SiI3124-2 chip, which automatically implies that it supports the maximum bandwidth of 3Gbit/s.
This is what this baby looks like:
It supports a standard set of RAID arrays including: JBOD, RAID 0, RAID 1, RAID 10. The controller uses 64-bit PCI-X 133MHz bus. The BIOS receives 128KB of memory by default, although this memory size can be expanded up to 4MB.
Silicon Image SiI 3124 SATALink 4-Port Controller Features
JBOD, 0, 1 and 10
4 Serial ATA II 300MB/s. Compatible with SATA 1.0 standard
64bit 133MHz PCI-X
Supports up to 4MB of external memory