I downloaded the manual from the Acard website, it looks like capacity is 1/2 for when each port is used (which makes sense if it's going to work in Windows)


Open: Single mode (default)
Through the SATA port0, we can access the total capacity of DDR2 SDRAM DIMM.
SATA port1 will be disabled.
Short: Dual mode
Each SATA ports can be accessed to one disk with half capacity of total DDR2 SDRAM
DIMM. With this mode enabled, we can double the data transfer rate by configure them
as a RAID0 (stripping) logical disk if the SATA host supports RAID function.
It looks like 1 sata power cable powers it

Jason - can you also please check on noise level and confirm if any fans come with this model? or is it passively cooled? I ask because a similar looking DDR1 drive, the Hyperdrive4 is quite loud with it's fans