I think the answer is no but need to ask.
from the guide:
ActivChassis capability is provided by the ports in the module slots on the AOS device. In a stacking XIM module, dual mode ports can be individually set as 16Gbyte ActivChassis ports or standard 10 G Ethernet mode switchports. In a NetVanta Dual SFP+ XIM module, dual mode ports can be individually set as 10 G ActivChassis ports
Post edited to clarify original answer:
brian_ctl - Thanks for posting your question on the forum!
The SFP XIM supports 2.5 Gbps and 1 Gbps. They will support ActivChassis but only at 1 Gbps speed. The SFP+ XIM will support ActivChassis at both 1 and 10 Gbps speeds.
Please let us know if you have any further questions.
Thanks,
Noor
Post edited to clarify original answer:
brian_ctl - Thanks for posting your question on the forum!
The SFP XIM supports 2.5 Gbps and 1 Gbps. They will support ActivChassis but only at 1 Gbps speed. The SFP+ XIM will support ActivChassis at both 1 and 10 Gbps speeds.
Please let us know if you have any further questions.
Thanks,
Noor