HPE Aruba Networking 24-Port 10M/100M/1G BASE-T MACsec v3 zl2 Module (J9987A) is a high-performance expansion module designed for the HPE Aruba Networking 5400R zl2 Switch Series. Featuring 24 Gigabit Ethernet 10/100/1000BASE-T ports with MACsec encryption, it provides secure, wire-speed connectivity for enterprise campus networks. The hot-swappable module integrates seamlessly with the 5400R zl2 chassis, delivering scalable access, advanced security, and reliable performance for wired users, IP devices, and edge network deployments.