Do I hold any risk by plugging within matching column my PC, Monitor, Printer and cellular phone?

Answer:

Not as long as you are using a surge protector
I would recommend using an UPS (uninterubtable power supply). A wearing clothes one is about $40. A surge protector solitary helps if your get hold of a power surge not a power drop.
Not likey..



Most wall outlets have at smallest 15 amps of power ..



The items you listed will not total that much..



GOOD LUCK