I have been told to be careful when I hook up devices to a SCSI card because you can slow your ultra2 devices down to ultra i.e. 40Mhz to 20Mhz. I have also read that Adaptec has something called speed flex that isolates electronically the buses of different devices. But I have been looking at a control card from Tekram. It has four connectors, 1 50 pin int, 1 68 pin uw int., 1 68 pin u2 int., and 1 68 pin ext., and is only $207. My question is am I only to be concerned about the fore mention problem if I am trying to daisy chain for ex., If I hooked a u2 HD with a CD-ROM that is not at U2 speed all to the same conector? Will I sacrifice speed if I connect my CD-ROM to the uw conector and the HD to the U2 conector or should I go with the Adaptec because their will be no speed lost?