Quantity   Component name
1 × Mikrotik S-31DLC20D SFP Transciver a 1.25G SFP transceiver with a 1310nm Dual LC connector
1 × Arduino Pro Mini
1 × Nokia 5110 LCD
1 × FT232 USB-UART module
1 × Push Button Key
1 × LD1117-3.3 Regulator
1 × 9V Battery
1 × 9x15cm Double Sided PCB Board