Hi m.asif,
Yes all 2920's can be stacked together using the appropriate stacking modules and cables. The 2920 can be stacked up to 4 members in a ring or chain stack topology.
Let me know if you have more questions.
Thanks,
Justin
JUSTIN NOONAN
TECHNICAL MARKETING ENGINEER – ARUBA CAMPUS TECHNOLOGIES
O: +1 916 540 1748 | justin.noonan@hpe.com
8000 FOOTHILLS BLVD | ROSEVILLE, CA 95747 USA