Air-ct5500-k9-8-3-150-0 -
Offers 8 Gbps of throughput, which was industry-leading during its peak.
8.3.150.0 supports many legacy APs. However, check the official release notes for the specific list of supported APs (such as Aironet 1130, 1140, 1520, and 1550 series). air-ct5500-k9-8-3-150-0
Enhanced Support for Wave 2 Access Points: Improved integration with 802.11ac Wave 2 hardware. Offers 8 Gbps of throughput, which was industry-leading
Addressing potential security weaknesses. Offers 8 Gbps of throughput
Fixes various issues reported in previous 8.3 trains, improving stability in high-density AP environments.