5720 Series switches can stack with themselves and support data rates of 100Gbps on ports U1 and U2 using the Native-V400 stacking mode with QSFP28 cables, or Native-V400-Alternative-configuration with the long range AOC optics. The
5720 Series can also stack with
5520 Series, Extreme
7520, and Extreme
7720 switches.
- When stacking with 5520 Series switches, the 5720 Series supports data rates of 50Gbps on ports U1 and U2 using the Native-V200 stacking mode with QSFP28 cables.
- When stacking with Extreme 7520 and Extreme 7720 switches, the 5720 Series supports data rates of 100Gbps on ports U1 and U2 using the Native-V400 stacking mode with QSFP28 cables, or Native-V400-Alternative-configuration with the long range AOC optics.

Note
The 7520-48YE-8CE switches do not support stacking.