I'm considering purchasing a Highpoint RocketRaid 2680 controller which has 2 internal mini-SAS connectors and I'd like to attach this to 8 internal SATA HDDs; the controller doesn't come with mini-SAS to 4xSATA cables so I need to purchase these separately.
I've seen these cables advertised as either 'crossover' or 'straight-through' and I'm not sure which type I need.
My hard disks are installed in a Lian-Li Ex-H33 hot swap drive bay.. not sure if this makes a difference.
Controller to backplane will mostly be using a crossover cable because under such circumstance both the backplane and the controller will be the initiator to the drives. Or was it backplane being the initiator and controller being the target. Even I get confused and prefer not to use the crossover/straight-through cable naming.
To keep it simple for remembering, crossover is almost always used between backplane (usually an expander) and the controller.
And controller to individual drives will always use a straight-through (or a simple drive cage that has a backplane of sort for hotswapping, but isn't an initiator).
[EDITED]The SFF-8087 to 4xSATA crossover cable you referred to will be used when you have a SATA controller and want to connect 4xSATA to a backplane that uses SFF-8087, which is not the one you want.