| Details | |
| RB921UAGS-5SHPacD-NM | Product code |
| 720 MHz | CPU nominal frequency |
| yes | SFP DDMI |
| 1 | CPU core count |
| 128 MB | Size of RAM |
| None | 10/100 Ethernet ports |
| 1 | 10/100/1000 Ethernet ports |
| 0 | MiniPCI slots |
| 0 | MiniPCI-e slots |
| QCA9882-BR4A-R | Wireless chip model |
| 802.11ac | Wireless standards |
| 1 | Number of USB ports |
| 0 | Power Jack |
| no | 802.3af support |
| No | PoE out |
| 8 V - 30 V | Supported input voltage |
| Yes | PoE in |
| Yes | Voltage Monitor |
| No | CPU temperature monitor |
| Yes | PCB temperature monitor |
| 143x247x48mm (PCB) | Dimensions |
| RouterOS | Operating System |
| 4 | License level |
| No | Antenna gain DBI |
| No | Current Monitor |
| QCA9557-AT4A-R | CPU |
| 21 W | Max Power consumption |
| 1 | SFP ports |
| None | SFP+ ports |
| USB type A | USB slot type |
| 2 | Number of chains |
| None | Serial port |
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