I needed a replacement phantom power adapter for my Shure SM91. This item appeared to be a bargain at a fraction of the price of the genuine item.
The CC100 seems to be well made. The connections at both ends are tight and in the live environment that I used it in, passed audio with no noticeable colouration. A studio session might reveal some weaknesses in the future, but for me, it just does the job that I ask of it for minimum outlay.