DC-DC ICs (67) Passive Crystal Oscillators (36) Board-to-board connectors (33) USB connectors (14) Switching power supply ICs (12) EEPROM memory (4) SDRAM memory (3) D-Sub connector accessories (3) Power connectors (3) Rack cabinet (3) Circuit breaker (3) Clock/Timing ICs (2) Supercapacitors (2) Electronic accessories (2) Development board kit (2) WiFi IoT modules (2) Battery holder/Clip accessories (2) Screwdriver/tweezers/wrench tools (1) Network port transformers (1)