AP type: Indoor, dual/tri-radio, 5GHz and 2.4GHz 802.11ax 4×4 MIMO
• 5GHz radio (dual-radio operation): Eight spatial stream Single User (SU) MIMO for up to 4.8Gbps wireless data rate with individual 8SS HE80 (or 4SS HE160) 802.11ax client devices, or with eight 1SS or four 2SS HE80 802.11ax MU-MIMO capable client devices simultaneously
• 5GHz radio (tri-radio operation): Four spatial stream Single User (SU) MIMO for up to 2.4Gbps wireless data rate with individual 4SS HE80 (or 2SS HE160) 802.11ax client devices, or with four 1SS or two 2SS HE80 802.11ax MU-MIMO capable client devices simultaneously
• 2.4GHz radio: Four spatial stream Single User (SU) MIMO for up to 1,147Mbps (574Mbps) wireless data rate with individual 4SS HE40 (HE20) 802.11ax client devices or with two 2SS HE40 (HE20) 802.11ax MU-MIMO capable client devices simultaneously
• Both downlink and uplink MU-MIMO in 5GHz, downlink only in 2.4GHz
• Support for up to 1,024 associated client devices per radio, and up to 16 BSSIDs per radio
Datasheet:https://www.arubanetworks.com/assets/ds/DS_AP550Series.pdf