AC-DC power modules (15) LED digital tubes (13) LED light guide tube accessories (13) DC-DC power modules (12) Pushbutton Switches (10) Switching power supply ICs (9) Screwdriver/tweezers/wrench tools (8) Direct-insert ceramic capacitors (7) SMD capacitors (6) Rotary coding switches (6) Dedicated switches (4) Light-emitting diodes (4) Instrument and equipment and accessories (4) Rack cabinet (3) Toggle switch (3) Wire accessories (3) Other processors (2) FLASH memory (2) DDRSSD memory (2) Switching diodes (2) Screw fastener hardware (2) LEDUPS and other types of power modules (2) Common Mode Choke Filters (1) Board-to-board connectors (1) SMD electrolytic capacitors (1) Mounted large-capacity capacitors (1) Tantalum capacitors (1) Active Crystal Oscillators (1) Schottky diodes (1) Rectifier bridges (1) Development board kit (1) Current sensors (1) Circuit breaker (1)