That's what I thought. Thanks for your repsonse John, appreciate it.
Also I believe this new 10G NIC (NIC-1-010G-2SR-BP) is only supported by CXxx70 (RiOS running 8.5.2 or later) and Interceptor 9600 ( 4.5.2 or later) as mentioned in NIC installation document
Can someone from Riverbed confirm this just to be sure? :-)