Dot Line RS-0445 ETTL Off-Camera Cord for Canon, 3 ft.

I got this cord with a bracket. The bracket was great. The cord failed after 1 time out shooting. Cable pulled partially out and shorted. I actually think it was responsible for causing my memory card to fail and had to be re-formatted. Buy the Canon cord.
Fortunately Adorama took it back and gave me a refund.

Purchased the cord based on reviews of this versus the Canon one. Major mistake, on the second use it is intermittent, may or may not recognize the camera, may or may not run in E-TTL mode. Poor contact action, extremely difficult to get off the camera hot shoe. Almost impossible to get my 580 EXII to lock on, if I do lock the flash onto the shoe it won't fire. Overall don't waste your money, unless you can afford missed shots.

Been using this for about a month with my Rebel XTI and 430EX flash. No problems with connections or functionality. Eliminates red eye and creates great 3D shadow effects on portraits.

Using a monopod to hold flash recommended as coiled cord is hard to stretch. To hold the flash tight, fingers wander in front of flash sensor. I guess that's the trade off for heavy duty cord. Should last a long time.

If fitted perfectly on my Canon S5 camera and my Metz 48AF-1 flash, and the TTL worked fine. It's easy to install/remove. To be better, should be longer, anyway it's helps a lot anyway!