Details Product code:    RB951Ui-2HnD Architecture:    MIPSBE CPU:            AR9344 CPU core count :   1 CPU nominal frequency:                              600 MHz Dimensions:    113x138x29mm License level:    4 Operating System:                               RouterOS Size of RAM:    128 MB Storage size:    128 MB Storage type:    NAND Tested ambient temperature:                     -20C +50C