Cord Control Canon

Cord Control Canon
I'm buying the Remote Shutter Release cable for Canon RS-80N3 40D. I found a replacement for RS-80N3 on eBay?

One of my friend told me not to go for the replacement of RS-80N3 for Canon brand is not good for the camera. I'm confused. Pls tell me

Your friend is wrong. There is a time and place for third-party accessories. They do not tend to use a third party lenses, for example. But when it comes to things such as batteries or a Remote Cable Release, third to the end. In my mind, Canon's ridiculous to pay $ 50 for a driver and a switch. That said, I'm not sure what the brand is ebay, but I saw this one on Amazon Opteka seems that would make the work.

DSLR Remote Control Cord for Canon Eos 30 33 300 50 300D 350D 400D CONTAX N