Can UCS FEX's be daisy chained?

[jubli24]

Was setting up a half dozen UCS chassis and noticed some of the FEX's have 8 ports instead of 4. Got me wondering, can you daisy chain a series of chassis together, with only one chassis actually connecting directly to the FI?

I tried it with some 10GB SFPs I had laying around and got link light but the FI didn't recognize the daisy chained chassis. Was curious if it's possible and maybe I'm using the wrong cables. Thanks!

[Slothmarine]

Does the chassis support Interconnects at full speed? I know that 3750 can with stacking, if not then you will ultimately just be cutting the bandwith in half as with all daisy-chains. Best bet is to check the manual since you know what you are looking for already.