The DS-3E0310HP-E supports IEEE 802.3af/at PoE standards, not the 802.3bt Hi-PoE standard. It can provide up to 30W per port, not 90W. The rest of the features are correct.
Intelligent PoE Management Up to 300 m Long Range PoE Transmission IEEE 802.3af/at Standard PoE, Max. 30 W for One Port 4/8-Core Adaptive Power Supply with Less Power Loss 6KV Surge Protection to Improve Reliability in Harsh Environment
