Yeah I use em with no problem. They're nice because some PSUs have a lot of wattage but they lack on the PCIe connector side of things. If you use some of the adapters you can fit a few more cards in.
Make sure that you are using the connectors with 2x4pin molex on em
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.evertek.com%2Fimageshare%2FP%2F300x300%2FPCIXPRESPWRCAB-unit.jpg&t=663&c=7nUX6ZsK9yiBzw)
rather than one with just 1x4pin molex
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fencrypted-tbn0.gstatic.com%2Fimages%3Fq%3Dtbn%3AANd9GcSkEittZbJLRI_7RSy48akrs1pqFeJ-__bdMAjb_-c6gStMtc9gFg&t=663&c=jgcaIPHxvp9ttg)
They
might work but a few guys posted a couple weeks ago with their cables burning out because the one molex to pcie couldn't supply enough power.