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