Is it safe to toggle a led strip powered with 12v ATX PSU line?

Question

I connected a segment of a led strip (12v) to a line coming from a standard ATX PSU (12v line, of course). I just wonder if it is safe to put a toggle switch to turn on/off the led strip, or may be this really simple circuit requires additional components.
I should say the ATX PSU is actually powering a PC and I want to power also the led strip, and turn it on/off while pc (psu) in on.

Transistor · Answer

This should be fine.

Generally the +5 V or +3.3 V line is accurately regulated and the +12 V (and -12 V, if provided) are relying on the turns ratio on the SMPS transformer to keep them in proportion to the 5 V supply.
Watch your current. The 12 V rails were only designed for hard drive motors which are not high power. The PSU label should give you the limits.

Is it safe to toggle a led strip powered with 12v ATX PSU line?

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