< In a BA23, you use the same cables (a 2nd set obviously) for the < second DUA1: drive as the first drive. DON'T FORGET TO < SET THE DUA1: DRIVE AS DS4!!!!!!!!!!!!!!! The cables Correct. < The I/O distribution panel in a BA23 allows for 2 hard drives < and is intended for a dual RX50. I have never tried a dual RX33 < in a BA23 on an RQDX3, but I presume it would work. I don't it does if the RQDX3 is the correct rev. < know if the 2nd hard drive must be connected into the READY < and WRITE PROTECT buttons. I have heard that the 2nd < drive can float and that the default is READY and NOT < WRITE PROTECTED. Also correct. I happen to prefer to writelock the disk and make it not ready before power off to avoid the risk of accidental writes(during power up or down). Allison